NBDE 2004 Part II

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Dr. Smile

NBDE Part 2 2004 Exam

1. Additional cured silicones (polyvinyl Siloxane) are often the materials of choice for impressions forfixed restorations. Each of the following is true about these materials except one. Which one is thisexception?a. give off ethyl alcohol during their setting reactionb. can be poured more than once and still remain accuratec. can be poured after 24 hours and still remain accurated. rebound from undercuts without permanent deformatione. may released hydrogen gas during setting

2. why is it advisable to dispense the liquid component of cement of cement immediately before mixing?a. to avoid absorption of moisture from the airb. to avoid spreading over a large area of the slabc. to allow tempering of the powder by the mixing slabd. to reduce the temperature influence of the mixing slabe. to prevent evaporation of the volatile components.

3 Which of the following is the typical interocclusal distance between opposing denture teeth at thephysiological rest position?a. 0.0-0.15 mmb. 2.0-4.0 mmc. 4.5-5.5 mmd 6.0-8.0 mm

4 As an X-ray tube operates, electrons carry energy from the cathode to the anode into which of thefollowing is MOST of this energy converted in the target?a. heatb. X rayc. Magnetismd. electricitye. visible light

5 Class II amalgam restoration has a overhang at gingival margin. This might have been caused by whichof the following?a. poor adaptation of the matrix bandb. poor carvingc. did not wedge the matrix band

6 At what age are all primary teeth normally in occlusion?a. 1.5-2.0 yearsb. 2.5-3.0 yearsc. 3.5-4 yearsd. >4 years

7 Larger condensers and laterally applied condensation forces are recommended to ensure completecondensation of which of the following amalgam types?a. admixedb. sphericalc. lathe-cutd. high-coppere. conventional

8 The usual metabolic pathway of ingested fluoride primarily involves urinary excretion with the remainingportion found largely in thea. teethb. muscle tissuec. skeletal tissued. epidermal tissue

9 occlusal sealants succeed by altering which of the followinga. the substrateb. the bacterial typesc. the bacterial numberd. the bacterial virulencee. the host's susceptibility

10 probing depth can vary based on the degree of inflammationfrequently, the reduction in probing depth obtained after initial therapy reflects this changes, rather than atrue gain in clinical attachment.a. both statements are trueb. both statements are falsec. the first statement is true, the second statement is falsed. the first statement is false, the second is true

11 a major advantage to patient treatment with osseointegrated dental implants is a change in the pattern ofedentulous ridge resorption, which of the following is believed to be the reason for a more physiologicloading of the bonea. delayed loadingb. endosteal loadingc. sequential loadingd. progressive loadinge. mucoperiosteal loading

12 an 18 year old man complains of tingling in his lower lip. an examination discloses a painless, hardswelling of his mandibular premolar region. the patient first noticed this swelling three weeks ago.radiograph indicate a loss of cortex and a diffuse radiating pattern of trabeculae in the mass. which of thefollowing is the MOST likely diagnosisa. leukemiab. dentigerous cystc. ossifying fibromad. osteomae. hyperparathyroidism

13 increasing the amount of water in the mix of an improved gypsum die-stone will MOST likely result inwhich of the followinga. more expansion and more strengthb. more expansion and less strengthc. less expansion and more strengthd. less expansion and less strength

14 which of the following is recommended for treating the pain of tic douloureux (trigeminal neuralgia)?a. oxycodoneb. ibuprofenc. carbamazepined. hydrocortisonee. acetylsalicylic acid

15 which of the following is seen MOST frequently among temporomandibular-joint dysfunction patienta. depressionb. psychosisc. sociopathyd. schizotypical behaviore. passive-aggressive behavior

16 which of the following diagnostic criteria is the LEAST reliable in the assessment of the pulp status inthe primary dentitiona. swellingb. pulp testingc. spontaneous paind. internal resorption

17 which of the following explains why the Z-plasty technique used in modifying a labial frenum isconsidered to be superior to the diamond techniquea. it is less traumaticb. it is technically easierc. it requires fewer suturesd. it decreases the effects of scar contracture.e. it allows for closure by secondary intention

18 which of the following MOST accurately explains how biofeedback worksa. it reduced cognitive dissonanceb. it stimulates the sympathetic nervous systemc. it relaz and to some extent hypnotizes the patientd. it distracts and engages the patient in an active coping task.e. it enables the patient to gain control of certain physiological function

19 which of the following describes clindamycina. inhibits cell wall synthesisb. does not penetrate well into bony tissuec. it usually given in combination with erythromycind. is effective against gram-negative bacteria onlye. is effective against most anaerobes

20 dentists usually send their cemento-metal restoration cases to dental lab for fabrication. upon receivingthe cases, these technicians MOST frequently complain that thea. margines have been ill-definedb. teeth have been insufficiently reducedc. shades for the restorations have been inadequately describedd. impressions or models are inaccurate

21 which of the following characteristics of autism presents a major obstacle to successful dentalmanagement of an ambulatory patienta. impaired communicationb. apparent insensitivity to painc. lack of intellectual development

d. inability to perform fine-motor activitiese. automation, such as hair twirling and body rocking

22 the prognosis for bleaching is favorable when the discoloration is caused bya. necrotic pulp tissueb. amalgam restorationc. precipitation of metallic saltsd. silver-containing root canal sealers

23 the dentist is performing a block of the maxillary division of the trigeminal nerve into which anatomicalarea must the local anesthetic solution be deposited or diffuseda. pterygomandibular spaceb. pterygopalatine spacec. retropharyngeal spaced. retrobulbar spacee. canine space

24 the anterior maxillary incisors of a middle-aged patient can be given a younger appearance by selectivegrinding of the enamel. the dentist performs this procedure bya. flattening the incisal edgesb. shortening the incisal edgesc. rounding the incisal point anglesd. moving the facial line angles proximallye. moving the facial height of curvature gingivally

25 occlusal disharmony in newly inserted complete dentures MOST frequently results from which of thefollowinga. improper waxingb. overextension of bordersc. errors in registering jaw relationsd. changes in supporting structures following insertion of dentures

26 inflammation from periodontal disease usually extends to the bone marrow followinga. trauma from occlusionb. the nutrient canalsc. the periodontal ligamentd. the course of the vascular channels

27 how many hours per day should a cervical pull headgear be worn to achieve the MOST affective resultsa. 6b. 8c. 10d. 12e. 14

28 which of the following outlines BEST describes the access cavity preparation on a mandibular molarwith four canalsa. ovalb. trapezoidalc. triangulard. round

29 which of the following is primarily communicated nonverballya. ideasb. beliefsc. thoughts

d. emotionse. concepts

30 which of the following represents in the classic sign or symptom of an anterior displaced disc withreductiona. painb. closed lockc. reciprocal clickd. temporal headachee. decreased range of motion

31 when evaluating an extension-base removable partial denture several years after delivery, the dentistshould apply loading forces to the base area. if an indirect retainer elevates from its rest seat under theseforces, then this indicated the need toa. tighten the claspsb. adjust the occlusionc. reline the base aread. remake the partial denturee. advise the patient to use a denture adhesive

32. current accept technique for reduced pocket depth except one, which one is exception?a. gingivectomyb. gingival curettagec. S & Rd. debridement surgerye. osseous surgery

33. When determining the appropriate dose of systemic fluoride supplement for a child, it is MOSTimportant for the dentist to consider which of the followinga. The fluoride content of the drinking waterb. the child’s diet and caries activityc. the child ago and the fluoride content of the drinking waterd. the child’s weight and the fluoride content of the drinking water.

34. which of the following statements about the bacterial etiology of enamel surface dental caries isINCORRECTa. caries is a transmissible bacterial infectionb. the presence of S. mutans in dental plague means the patient has cariesc. pits and fissures from which S. mutans can be cultured may not become carious

35. a patient who takes dicumarol is probably being treated fora. hypertensionb. angina pectorisc. coronary infarctd. paroxysmal tachycardiae. congestive heart failure

36. the retentive tip of a clasps arm is placed in an undercut BECAUSE a flexible arm is BEST suited forreciprocationa. both the statement and the reason are correct and relatedb. both the statement and the reason are correct but NOT relatedc. the statement is correct, but the reason is NOTd. the statement is NOT correct, but the reason is correcte. NEITHER the statement NOOR the reason is correct

37. which of the following bacteria responsible for odontogenic infections are capable of adapting to either

a high or low oxygen containing environmenta. enteric organismb. obligate anaerobesc. facultative organismd. synergistic organisme. microaerophilic organism

38. which of the following injuries to the teeth MOST often results in pulpal necrosisa. avulsionb. concussionc. lateral luxationd. intrusive luxatione. extrusive luxation

39. which of the following physical signs indicates severe CNS oxygen deprivationa. dilated pupils with increased light reflexb. pinpoint pupils with increased light reflexc. dilated pupils with an absence of light reflexd. pinpoint pupils with an absence of light reflexa. porphyriab. progeriac. acrodyniad. cystic fibrosise. congenital heart disease

41. to enhance a patient’s comfort level in a dental setting, which of the following represents the MOSTimportant action for a dentista. inform the patient of what to expect during the appointmentb. have an axillary staff member present in the operatoryc. assert control using a directive interviewing styled. provide an immediate evaluation of the patient’s oral healthe. maintain eye contact to increase the level of intimacy

42. which of the following groups of muscle influences the molding of the lingual border of the finalmandibular impression for an edentulous patienta. hypoglossus, mylohyoid, medial pterygoid, digastricb. mylohyoid, styloglossus, medial pterygoid, depressor anguli orisc. palatoglossus, superior pharyngeal constrictor, mylohyoid, genioglossusd. genioglossus, mylohyoid, middle pharyngeal constrictor, posterior belly of the digastric.

43. after the initial visit, a patient’s decision to return is MOST likely to be influence by the dentista. interpersonal skillsb. office designc. office locationd. technical competencee. educational credentials

44. which of the following can be a clinical feature of acute herpetic gingivostomatitisa. discrete, spherical vesicalb. temperature-sensitive teethc. solitary localized edematous gingival lesiond. necrotic destruction of interdental gingival tissues

45. increasing mA setting of an x-ray unit raises which of the followinga. photon speedb. photon wavelength

c. number of photons generatedd. voltage between anode and cathodee. effective energy of the resultant beam

46. which of the following should be done when a patient presents with a low, attached maxillary frenum,accompanied by a 3 mm diastema in the early transitional dentitiona. perform a frenectomy when it is first observed.b. observe until after the eruption of the permanent caninesc. render treatment before the complete eruption of the maxillary incisorsd. instruct the patient to wear an elastic around the teeth to close the diastema

47. an examination of a complete denture patient reveals that the retromolar pad contacts the maxillarytuberosity at the occlusal vertical dimension. To remedy this situation, which of the following should beperformeda. reduced the maxillary tuberosity by surgeryb. cover the tuberosity with a metal basec. increase the occlusal vertical dimensiond. reduce the retromolar pad by surgerye. omit coverage of the retromolar pad by the mandibular denture.

48. the ability of a patient to make choices among treatment options represents the concepta. autonomyb. competencec. beneficiald. paternalism

49. a tissue-conditioning materials is MOST frequently used to treat which of the following conditionsa. epulis fissuratumb. papillary hyperplasia of the candida albicansc. traumatized mucosa caused by ill-fitting dentured. sharp, residual, mandibular ridges occurring in molar areas

50. maxillary first premolars with mesiodistal furcation involvements are often managed successfully bysurgery.Therefore, they have a good prognosis and can be included as key abutments in a fixed prognosis.a. both statements are trueb. both statements are falsec. the first statement is true, the second is falsed. the first statement is false, the second is true

51. according to ADA publication entitled principles of ethics and code of professional conduct, a dentistcan announce specialization in which of the followinga. implantologyb. hospital dentistryc. aesthetic dentistryd. dental public healthe. geriatric dentistry

52. a patient presents with a restricted floor of the mouth, only 6 mandibular anterior teeth, and diastemabetween several teeth. Which of the following major connectors is appropriate for this patienta. a lingual barb. a lingual platec. a lingual bar with a Kennedy bard. a lingual plate with interruptions in the plate at the diastemas.

53. symptoms of pain and tenderness upon palpation of the TMJ are usually associated with which of the

followinga. impacted mandibular third molarsb. flaccid paralysis of the painful side of the facec. flaccid paralysis of the non painful side of the faced. excitability of the second division of the fifth nerved. deviation of the jaw to the painful side upon opening the month.

54. which of the following represents the MOST likely cause of plastic denture teeth being dislodged fromthe acrylic resin of the denture basea. excessive occlusal forces were appliedb. the occlusal surfaces were not placed in the teethc. retentive undercuts were not placed in the teethd. the mold was contaminated with wax before processing

55. before beginning tooth preparation, the dentist should visualize the outline form toa. establish the convenience formb. establish the resistance and retention formc. prevent over cutting and overextensiond. aid in the finish of enamel walls and margins.

56. which of the following BEST describes adjunctive orthodontics treatmenta. orthodontic therapy performed only with removable applianceb. limited orthodontics treatment to align the front teeth for maximum estheticsc. orthodontic treatment to enhance restorative and periodontal rehabilitationd. early treatment of orthodontic problems to prevent more serious malocclusion

57.a child has a sore ulceration of the lower lip. There is no history of obvious trauma. The ulcerationappeared several hours after the patient received dental treatment. Which of the following represents theMOST likely diagnosisa. herpes labialisb. postanesthetic lip bitec. chemical burn from aspirind. aphthous ulcers secondary to stresse. allergic stomatitis to the rubber dam.

58 to prove its clinical effectiveness, an antimicrobial agent must demonstrate that ita. reduces plaque massb. helps to reduce diseasec. specifically kills aerobic bacteriad. specifically kills anaerobic bacteria

59. a 40 years old female patient complains of a painful rapidly developing ulcer on the left side of herpalate. This lesion appears crater like and measure 1.5 cm. Which of the following represents the MOSTlikely diagnosisa. actinomycosisb. pleomorphic adenomac. squamous cell carcinomad. necrotizing sialometaplasia

60. examination reveals a soft, fluctuant, tender swelling in the middle of the hard palate. The teeth testvital. Radiographs reveals a radiolucent area projected between the roots of the maxillary central incisors.Which of the following cysts represents the MOST likely diagnosisa. nasolabialb. median palatalc. periapicald. nasopalatine duct

e. incisive papilla

61. incomplete removal of bacteria, pulp debris, and dentinal shaving is commonly caused by failure toirrigate thoroughly. Another reason is failure toa. use broachesb. use a chelating agentc. obtain a straight line accessd. use gates-Glidden burs

62. the pulpal floor is perforated during access preparation. Which of the following is the BEST course ofactiona. repair the perforation immediately and continue the root canal treatmentb. continue the root canal treatment; repair the perforation at a subsequent appointment, only if associatedpathosis developsc. continue the root canal treatment; repair the perforation at a subsequent appointmente. perform no further treatment at this time; repair the perforation and continue the root canal treatment at asubsequent appointment

63. a 22 years old male patient complaint of dull pain in the posterior left mandibular region. A radiographmade of this area reveals not only a radiolucency around the first molar roots, but also a radiopacity of boneperipheral to this radiolucency. Which of the following BEST explains this conditions? It isa. normal for this patientb. a developmental abnormalc. an error in radiograph techniqued. a manifestation of systemic bone diseasee. a reaction to an apical inflammatory disease

64. a 34 years old patient present for a routine oral examination. She has six mandibular anterior teethremaining in the mouth. She is asymptomatic and there is no evidence of decay or tooth destruction.Although slight periodontal disease is present. Radiographically, there are periapical radiolucency presenton two mandibular central incisor. Electric pulp testing indicates all teeth are responsive in a small fashion.Which of the following is the treatment of choicea. initiate root canal treatment on the two teethb. test cavities on mandibular central incisorsc. identify the dark, potentially necrotic pulp chambers by transluminationd. extract and replace teeth with a mandibular partial denture.e. no treatment is necessary at this time

65. which of the following represents an effective treatment for mottled enamel(chalky white color mixedwith brown spots)a. microabrasion with HCL/pumiceb. vital tooth bleaching after root canal treatmentd. in office bleaching with 35% hydrogen peroxide

66. patient who have natural dentitions generate the GREATEST amount of occlusal force duringa. swallowingb. masticationc. centric relationd. parafunctional movement

67. in which of the following teeth does the pulpal anatomy dictate a triangular-access cavity preparationa. maxillary central incisorb. maxillary first premolarc. mandibular second premolard. mandibular canine

68. which of the following tissue is MOST sensitive to radiationa. hemopoietic tissueb. endotheliumc. skeletal muscled. adult braine. collagen

69. in communicating with children, which of the following should the dental team doa. allow the patient to answer questions asked by the clinic at chairsideb. allow both the parent and the dentist to communicate simultaneously with the childc. transmit word substitutes for dental procedures and equipment during the appointmentd. attain voice control to build the groundwork for future instructions

70. which of the following represents the purpose of an open-ended questionsa. to elicit specific informationb. to test a patient’s truthfulnessc. to gather medical/legal informationd. to produce maximal freedom in responsee. to probe the details about a specific topic

71. where you can find dental literature online?a. MEDLINEb. lexusc. dental literature online

72. what is common to all form of shocka. neurogenicb. unconsciousnessc. inadequate perfusiond. hypovolemia

73. the number of patients with disease divided by the number of patients definesa. specificityb. sensitivityc. prevalenced. incidence

74. 3.6 ml of prilocaine has how much anesthetica. 72 mgb. 80mgc. 144mgd. 36mg

75. which tooth has the most cervical enamel projectionsa. mandibular premolarb. mandibular molarsc. maxillary molarsd. maxillary incisors

76. which can be used as a topical anesthetica. etidocaineb. bupivacainec. lidocained. procaine

77. a patient constantly questions and criticized the dentist. What should the dentist do

a. be silentb. shout at the patientc. state the criticismd. clear the patients misconceptions

78. ratio of LD50 to ED50 givesa. efficacyb. potencyc. safetyd. toxicity

79. the rate of oral cancer in the US in the past 5 years isa. increaseb. decreasec. the same

80. which is the most sensitive to radiationa. muscleb. nervec. hematopoietic marrowd. skin

81. after the first visit which of the following will cause the patient to return the MOSTa. office décorb. front deskc. interpersonal skills of the dentistd. sterilization procedure

82. you notice a red area on the palatal of the tooth which was extracted on the previous day. The area iscovered with white slough and is at site of the needle injection. Which is it most likelya. aspirin burnb. herpesc. necrosis due to vasoconstrictiond. normal

83 where do you inject to achieve a block of the maxillary nervea. infratemporal fossab. pterygomandibular fossac. sphenopalatine fossad. pterygotympanic fissure

84. in an edentulous patient the tuberosity touches the retromolar pad. What should you doa. reduce the padb. reduce bothc. reduce the tuberosityd. do not put the borders of the CD on the pad

85. digitalis can lead toa. hypokalcemiab. hyponatremisc. hypocalcemia

86. what is the name for the phenomena of porcelain appearing different under different lightsa. fluoresceneb. incandescencec. metamerism

d. isomerism

87. a patient has a high caries index, short crowns and minimum horizontal overlap. What restoration willyou plcea. 3/4 frownb. jacket crownc. PFMd. resin bonded retainer

88. a black female has multiple periapical lucency in the mandibular incisor area. What is the treatmenta. extractb. RCTc. no treatmentd. periapical surgery

89. tetracycline stain is incorporated duringa. appositionb. mineralizationc. calcification

90. Cantilever bridges are not good in the long term BECAUSE periodontal forces are best along the longaxes of tootha. statement is correct reason is notb. statement and reason are correct NOT relatedc. statement and reason are correct and relatedd. statement is wrong but reason is correcte. both are wrong

91. how would you treat an unconscious diabetica. IV insulinb. 5% dextrose in waterc. 50% dextrose in waterd. orange juice

92. what drug is used to treat HIV patienta. acyclovirb. amantadinec. zidovudined. carbamazepine

93. how stress and illness related?Stress can lead to illness and illness is stressful

94. which is the most personal relationship of dentist to patienta. sit directly in front of the patientb. touch the patient’s shoulderc. lean slightly towards the patientd. sit at least 2 feet away

95. after the dentist explains the treatment plan the patient is sad. How will he/she express thisa. gestureb. ideasc. eye sign and facial expressiond. by shouting at the dentist

96. which is the most important sign of ankylosis of tooth

a. dull soundingb. resonantc. cessation of eruptiond. cross bite

97. in the absent of the permanent tooth, the deciduous tooth willa. not resorbb. resorb like usuallyc. resorb slowlyd. resorb at the faster rate

98. which of the following is least useful in endo diagnosis of childrena. percussionb. palpationc. electric testd. thermal test

99. which of the following is most likely to cause pulp necrosisa. intrusionb. extrusionc. lateral displacementd. concussion

100. the initial instrumentation in endo treatment is done untila. radiographic apexb. DEJ junctionc. CDJ junctiond. cemental pulpal junction

101. drainage of an acute abscess. Also important isa. antibioticb. analgesicc. relieve the occlusionthrough debridement of the tooth

102. recurrent lesions on ono-keratinized tissue in 20 year old female are most likelya. herpes labialisb. herpetic gingivostomatitisc. aphthousd. shingles

103. why ask patient open ended questionsa. obtain specific informationb. allows freedom of responsec. obtain yes/no answer

104. a patient gets a blow to the chin. He complains of pain on the right side and the jw deviates to theright. What is the causea. fracture of symptomsb. fracture of left subcondylarc. fracture of right subcondylar

105. while doing the access preparation in a mandibular molar you perforate. What will you do nexta. do the endo now and repair laterb. do nothing now, repair both at a later visitc. repair the perforation and do the endo

d. extract the tooth

106. you will use a larger condenser and lateral condensation in which alloya. lathe cutb. admixedc. sphericald. high coppere. low copper

107. a mandibular molar has 4 canals. How should the access opening bea. roundb. ovalc. trapezoidald. triangular

108. anatomy of which tooth dictates a triangular access opening in to the root canala. maxillary premolarb. maxillary molarc. maxillary central incisord. mandibular lateral incisor

109. repeated asking of questions by a child indicatesa. curiosity of the childb. interest in the procedurec. trying to delay the procedured. child is abnormal

110. after sedating a childa. ask child to play aloneb. ask mom to play with the childc. always keep eye on the status of the childd. let the child fall asleep

111. autism presents as a problem due toa. metal retardation of childb. child playing with hair constantlyc. inability to communicationd. involuntary jerky movements of the child

112. which muscles that affect the lingual border of a mandibular CDa. mylohyoid, genioglossus, omohyoid, middle constrictorb. mylohyoid, genioglossus, superior constrictorc. mylohyoid, genioglossus, superior constrictor, palatoglossus

113. which computer database stored dental literaturea. LEXUSb. Medlinec. online of dental literature

114. pharmacokinetics and biotransformation of drugs is affected in the elderly due toa. rapid biotransformationb. increased half lifec. decreased renal excretion

115. after injection of local anesthesia for the posterior superior alveolar nerve block a sudden swellingseen on the ipsilateral side extending in the canine region. What is the cause

a. buccal pad of fatb. loose areolar tissuec. rupture of posterior superior alveolar vesseld. leakage of saliva

116. which principle of ethics allows the patient the right to choose his treatmenta. paternalismb. justicec. autonomyd. Malefecience

117. which is the most common complaint of lab technicians regarding a PFM prosthesisa. improper buccal reductionb. improper occlusal reductionc. improper shade selectiond. improper margins in the impression

118. which surface of mandibular first primary molar requires least reduction for a stainless steel crowna. occlusalb. buccalc. linguald. proximal

119. which is the most common reason for the failure of a casting to seata. deficient marginsb. overextended marginsc. proximal contactsd. buccal over contouring

120. a patient complains of dull pain and has a carious tooth with a periapical lucency surrounded by anopacity. What is ita. abnormalb. cementoblastomac. reaction to inflammationd. normal

121. Tylenol and ASA are same in all of the following excepta. modes of actionb. onset of actionc. duration of actiond. toxicity

122. which of the following combinations is least addictivea. Tylenol+ASAb. tetracycline + penicillinc. caffeine + amphetamine

123. what will you see if a patient receives a dose of 4Gy on the arm all at one timea. ulcersb. vesiclesc. erythemad. osteosarcoma

124. which of the following cn we see on the radiographa. buccal curvature of rootsb. gingival fibers

c. calcificationd. periodontal ligament

125. there is a root fracture in the apical third of the root of a mandibular tooth. What will be the mostlikely resulta. root resorptionb. ankylosisc. vitality will be preservedd. tooth will show internal resorption

126. there is a root fracture in the middle third of the root in an 11 year old patient. The tooth is mobile andvital. What will you doa. extractb. pulpectomyc. splint and observed. do nothing

127. what is the median of 1111223379?a. 1b. 3c. 2d. 7

128. which of the following is a definite sign of traumatic occlusiona. bone lossb. gingival recessionc. wear facetsd. food impaction

129. greatest amount of occlusal forces is seen ina. masticationb. swallowingc. parafunctional habitd. centric relation

130.spread of infection from the gingiva to the bone is viaa. traumatic occlusionb. vasculature of the periosteumc. periodontal ligamentd. vasculature of the gingiva

131. which of the following cause the bone lossa. C3a, C5ab. endotoxinc. interleukind. B-glucuronidase

132. aspirin burn is whata. atrophyb. hyperkeratosisc. necrosisd. hyperplasia

133. how do you surgically treat a skeletal one bitea. osteotomyb. anterior maxillary surgery

c. Le Fort 1d. Le Fort 2

134. a 6 years old patient has acute lymphatic leukemia. Her deciduous molar has a large carious lesion andfurcation lucency. How will you treat this persona. pulpotomyb. pulpectomyc. extractiond. nothing

135. bleaching is best when done in which of the following situationsa. necrotic pulpb. amalgam leached through the tubulesc. precipitation

136. the maximum percentage of N2O recommended in pediatric patienta. 20%b. 30%c. 50%d. 40%e. 70%

137. patient presents tenderness on palpation of the right joint, the jaw deviates to the right on opening andthere is an open bite. What is the causea. fracture of the left sideb. bilateral fracturec. fracture of the right sided. symphysis fracture

138. which of the following is most radiopaquea. quartzb. silicac. barium

139. an extra oral incision for a submandibular space abscess passes througha. skin, superficial fascia, platysma, masseterb. skin, superficial fascia, buccinatorc. skin, superficial fascia, platysma, deep cervical fascia

140. in restoring a canine protected occlusion, with anterior overbite of about 2mm. The buccal cusps fposterior teeth should be flat, BECAUSE they will guide the protrusiona. both are trueb. only the second statement is truec. both are falsed. only the first statement is true

141. a non working interference occurs in which of the followinginner incline of the buccal cusp of the mandibular teeth and inner incline of lingual cusp of maxillary teeth

142. a FPD was placed on teeth #18-20 with both retainers being gold crowns. After cementation thepatient returns complaining of sensitivity. What is the next step to doa. check vitalityb. refer to endodonticsc. check occlusald. do a cavity test.

143. which of the following is the composition of water glass ionomera. zinc oxide powder and poly acrylic acidb. aluminosilicate glass and polycitric acidc. aluminosilicate glass and polyacrylic acidd. zinc oxide powder and polyacrylic acid.

144. antibiotics help to reduce pockets bya. resectionb. shrinkagec. reattachmentd. regeneration

145. scaling is the removal of surface deposits on teeth. Scaling can be done on crown and root surfacesa. both are falseb. only the second statement is truec. both are trued. only the first statement is true

146.all of the following are endogenous opioids excepta. endorphinb. enkephalinc. bradykinind. dynorphin

147. why is a post placed in an endodontically treated tootha. increase the strength of the teethb. increase retention of the crownc. increase retention of the core

148. after a gingivectomy how does the site heala. from the epithelium of the pocketsb. epithelium of the adjacent alveolar mucosac. endothelium of the blood vesselsd. primary intention

149. what does an interrupted suture accomplisheda. brings the flap closerb. covers all exposed bonec. immobilized the flap

150. how is suturing best donea. over the incision lineb. in a figure of eight to evert the marginesc. from movable to fixed

151. optimal incisal reduction for a metal ceramic crowna. 1mmb. 1.5mmc. 2mmd. 2.5mm

152. you are considering the placement of an upper and lower important retained complete denture. Howmany implants will you place in the anterior regiona. maxillary one and mandibular oneb. maxillary two and mandibular twoc. maxillary four and mandibular twod. maxillary four and mandibular six

153. what best describes porcelaina. low compressive strengthb. high tensile strengthc. biocompatibled. high impact strength

154. a routine class V composite restoration was placed and patient returned the following day complainingof pain. Which best explains whya. preparation too deepb. no liner or base usedc. cervical dentin was exposed during polishing

155. which is the most common intraoral site for a melanomaa. gingivab. buccal mucosac. hard palated. floor of the mouth

156. patient complains of pain in the lower left posterior region 2 days after extraction. What is the mostcommon reasona. normalb. tumorc. alveolar osteitisd. paresthesia

157. patient has front bossing bifid ribs multiple missing teeth. What is the diagnosisa. cleidocranial dysplasiab. ectodermal dysplasiac. Peutz Jeghers syndromed. basal cell nevus syndrome

158. which of the following methods is likely to increase the chance of successful dental visits with youngchildrena. rewarding appropriate behavior verbally

b. using cooperative patients as modelc. tell/show/dod. using voice control in negative situationse. all of above

159. each of the following have increased blood levels due to an active metabolite excepta. diazepamb. flurazepamc. taxozind. oxazepame. chloral hydrate

160. all of the following are mechanism of action of N2Oa. increased onset of actionb. rapidly reversiblec. rapid biotransformation in the liver

161. a 5 years old patient comes for first dental visitthere are no problems. All contacts can be visualized and oral hygiene is good. According to the FDAguidelines how many radiographs will you takea. BWS and occlusalb. BWSc. noned. pano

162 what is the common reason for a toxic reaction to local anesthesiaa. hypersensitivity to the anesthesiab. hypersensitivity to the epic. increase vascular concentration of anesthesiad. extra vascular deposition of anesthesia163. what is most difficult orthodontic movement to achievea. distal mvt of maxillary teethb. tiltingc. intrusion

164. A 6 years old child is initially frightened on sitting in the dental chair for the first time. The bestapproach for ensuring a productive dental visit for this child is for the dentist toa. tell child not to moveb. tell child not to be frightenedc. ask the child about his /her fearsd. ask the parent to control the childe. reschedule the appointment

165. what is radiograph sign of successful pulpotomy in permanent tootha. open apexb. that the apex has foundc. loss of periapical lucencyd. no internal resorption

166. the patient complains that the lower denture keeps popping up what is the most likely reasona. underextendedb. lack of the tongue spacec. overextended

167. which is the most important factor for the retention of a complete denturea. periapical seal and atmosphere pressureb. capillary actionc. peripheral seal and maximum contact of basal tissue

168. all of the following are congenital excepta. dentinal dysplasiab. amelogenesis imperfectac. regional odontodysplasiad. ectodermal dysplasia

169. osteoma are seen ina. Gorlin Goltz syndromeb. Peutz Jeghersc. gardener syndromed. cleidocranial dysplasia

170. what is the problem if you want to perform apically repositioned flap surgery in the mandibularsecond and third molar areasa. mandibular ramusb. external oblique ridgec. mylohyoid ridged. poor blood supply to the area

171. mucous gland are seen every where excepta. palateb. tonguec. gingivad. buccal mucosa

172. stimulation of beta2 receptor will causea. vasodilatorb. sweatingc. broncho constrictiond. broncho dilation

173. what would you use to reverse the effect of a narcoticnaloxone

174. cholinomimetic drugs producea. mydriasisb. vasodilationc increase salivationd. decrease salivation

175. if the distance is double, the intensity will bea. sameb. halfc. quarterd. double

176. how will you increase the number of photon in the x-ray machinea. increase kVpb. use a shorter conec. increase mAd. use a film with faster thin speed

177. all forms of the hepatitis are transmitted through blood or bodily fluid excepta. non A non Bb. Bc. Ad. Ce. D

178. a young child aged 4 loses the second primary molar. How will you maintain the spacea. no need to maintain the spaceb. lingual barc. distal shoesd. cantilever bridge

179. alcohol abuse is someone whoa. unknown symptom after stop drinkingb. drink more than legal limitc. intoxicate regularlyd. drink enough to compromise relationship, job, and health.

180. lost apical seating by overinstrumenta. prescribe analgesic and antibioticb. increase file size and reduced filling lengthc. filled with warm GP

181. degeneration of the myelin sheath of the peripheral nerves in a diabetes may be manifested intraorallya. causalgia and neuralgiab. acanthosis and acantholysisc. vesical and ulcer formationd. glossopyrosis and glossodynia

182. in cobalt-chromium alloys, the constituent responsible for corrosion resistance isa. silverb. nickelc. cobaltd. chromiume. tungsten

183. an examination of the edentulous mouth of an aged patient who has worn maxillary complete denturesfor many years against six mandibular anterior teeth would probably showa. cystic degeneration of the foramina of the anterior palatineb. loss of osseous structure in the anterior maxillary archc. flabby ridge tissue in the posterior maxillary archd. insufficient interocclusal distance

184. overextension of a mandibular denture base in the distofacial area will cause dislodgement of thedenture during function as the result of the action of thea. masseter muscleb. buccinatorc. pterygomandibular raphed. superior pharyngeal constrictor musclee. lateral tendon of the temporal muscle

185. corticosteroid may be used to treata. asthmab arthritisc. allergyd. addison’s diseasee. any of the above

186. excretion of acidic drugs will be accelerated ifa. Na Bicar

b. NaClc. HCl

187. all of the dental procedure will damage soft tissue except one, which onea. topical treatment of fluorideb. matrix retainerc. rubber dam clampd. bleaching

188. the most sensitive tissue to radiationa. thyroidb. nerve tissue of the pulpc. salivary tissued. prostate gland

189. dentist is doing research on 5 unrelated patient with different background. He record data ……etc.dentist is doing what kind of research?a. clinical trialb. cohortc. sectional

190. relationship of sugar and cavity except one, which onea. typeb. timec. amountd. consistencye. concentration

191. difference between acetaminophen and aspirina. asthma patient

192. which sedative medication cause dissociation from the worlda. ketamine

193 to be clinical effective, antimicrobial agents needs to showa. reduced plaqueb. reduced diseasec. specially kill aerobic bacteriad. specially kill anaerobic bacteria

195. what precaution you need to take for patient who has cardiac pacemakera. antibiotic prophylaxisb. avoid electrocautery

196. dentist present his treatment to patient and think this is BEST for him/her is calleda. paternalismc. autonomyc. mal

197. best antibiotic for children with dental infectiona. penicillinb. amoxicillinc. tetracyclined. streptomycin

198. dental phobia is hard to eliminate because it isa. self reinforcingb. become habitc. patient can not seen199. 2 factors contribute to protrusive of CD

200. best scale for gingival indexa. ratiob. nominalc. interval

201. most of dental fear are froma. patient’s experiencesb. family and friends

202. “moon face” is seen ina. hyperthyroidismb. Addison’s diseasec. corticosteroid

203 Studer-Weber syndromea. mandibular retrob. midface ectoc. maxillary prog

204. patient’s #8 and #9 PFM is little darker than adjacent teeth but is clinically acceptable, what istreatment you would propose except onea. redo PFMb. indirect resin bond toc. porcelain bond to

205. in DMFS, what does the “S” stand for?

206. which is the acronym for a patient management systema. recruitb. successc. optimum

207. where/how would you administer dextrose to a diabetes patienta. IM injectionb. oralc. IVd. sublingual

208. #29,30,31 all need DO amalgam, which one do first

209. who pay for most of dental carea. governmentb. insurancec. cash

210. which test is reliable on primary teetha. hotb. coldc. electric pulp testd. percussion

211. for beveling gingival margin, what not to usea. hatchesb. gingival margin trimmerc. thin taper bur

212. hatches and gingival trimmer different in what

213. all of the following are affected in removed plaque except onea. toothpickb. H2O irrigationc. toothbrushd. floss

214. preload of implant is comparable t what forcea. torqueb. compressive215. top of the implant is what mm from adjacent CEJa. 2-3mmb. 4-5mmc. 7-8mmd. 5-6mm

216. keratosis happen where in the moutha. palateb. buccal mucosac. floor of mouthd. upper lip

217. what is longitudinal test

218. what is vestibuloplastya. adding the bone to the chinb. adding the soft tissue inter occlusal for better denture fitting219. all of the following are good reasons for dentist to retire early excepta. back painb. tunnel syndromec. HBPd. mercury toxicity220. what metal help chemical bond to porcelain221. which following symptom represent fluoride overdose222. If dentist accidentally leave caries when seal occlusal pit and fissurea.223. all of the following reasons to restore erosion lesion except one, which onea. prevent future erosionb. reduced sensitivityc. esthetic224. systemic fluoride are least effective ona. proximal surfaceb. smooth surfacec. root surfaced. pits and fissure225 When finishing the occlusal portion of a posterior composite restoration, the dentist should carefullya. eliminate contacts in the fossab. avoid altering the centric contact on enamelc. develop centric contacts on cavosurface margins226 The long term prognosis of a single-abutment cantilever fixed partial denture is compromiseBECAUSE forces are best tolerated by the periodontal supporting structure when directed in the long axesof the teeth.a. both statement and the reason are correct and relatedb. both the statement and the reason are correct but NOT relatedc. the statement is correct, but the reason is NOTd. the statement is NOT correct, but the reason is correcte. NEITHER the statement NOR the reason is correct.227 A practitioner has stabilized a permanent anterior tooth that had a fracture in the apical-one-third of the

root. The tooth will MOST likelya. require extractionsb. remain functional and vitalc. become ankylosedd. resorb internally and externally228 Which of the following is the LEAST effective in removing crevicular plaquea. toothpickb. dental flossc. a soft, nylon toothbrushd. a water-irrigating device229 A two day-old developing plaque consists primarily ofa. filamentous organismb. spirochetal organismc. gram + cocci and rodsd. gram – motile organisme. a structureless, non-mineralized pellicle.230 A patient who has Parkinson’s disease is being treated with levodopa. Which of the followingcharacterizes this drug’s central mechanism of actiona. it replenishes a deficiency of dopamineb. it increases concentrations of norepinephrinec. it stimulates specific L-dopa receptorsd. it acts through a direct serotonergic action231 Establishing drainage is an important aspect of emergency treatment for an acute apical abscess. Anequally important aspect isa. adjusting the occlusionb. prescribing systemic antibioticc. prescribing appropriate analgesicsd. introducing antimicrobial medicaments into the pulp space232 daily cleaning of the root surface by the patient has been shown toa. cause root sensitivityb. cause root resorptionc. stimulates the epithelial attachmentd. allow remineralization of the root surface.233 What is Bennett anglea. it is the angle that is formed by the non-working condyle and the sagittal plane during lateralmovementb. it is the angle that is formed by the condyle and the horizontal plane during protrusive movements.c. It is an difference in condylar inclination between protrusive and lateral movementsd. It is the difference between in the condylar and incisal inclinations.234 A cast gold restoration might be indicated for the replacement of a faulty amalgam to obtain

a. better marginb. more ideal contoursc. less trauma to the pulpd. less removal of tooth structure235 an adult patient presents with multiple, soft nodules and with macular pigmentation of the skkin.Which of the following BEST represents this conditiona. lipomatosisb. neurofibromatosisc. metastatic malignant melanomad. polyostotic fibrous dysplasiae. bifid rib-basal cell carcinoma syndrome236 radiographs of an asymptomatic, 20 years old patient reveal a sharply outline radiolucent lesion in themandibular first molar area. This 2 cm lesion scallops between the roots of vital teeth. The MOST probablediagnosis isa. radicular cystb. dentigerous cystc. traumatic bone cystd. odontoma237 which of the following abnormal findings is diagnostic of a trochlear nerve dysfunctiona. proptosisb. dilated pupilc. eyes fail to move laterallyd. eyes fail to move down and out238 a 5 years old child has a posterior unilateral crossbite that is accompanied by a functional shift of themandible. When should this crossbite be correcteda. immediately without waiting for the eruption of permanents first molarb. when all the primary teeth have exfoliatedc. after the permanent first molars have fully eruptedd. when the child is approximately 9 years old239 stress and illness are often related. The BEST description of their relationship is which of the followinga. stress is a primary cause of illnessb. illness is an adaptation to stressc. stress is psychologicald. stress is contributory to illness and illness is usually stressful240 after a dentist explained his diagnosis and treatment plan, a patient became saddened. By which of thefollowing did this patient MOST likely communicate his feeling to the dentista. wordsb. gesturesc. respiration rate

d. facial expression241 persistent and repetitions questions asked by an 8 years old patient during treatment are aa. attempted to delay treatmentb. medication of hyperactivityc. sign that child may be autisticd. expression of the child’s curiosity about the dental treatment242 what does the moyers probability chart predict when a transitional dentition analysis is performed?a. the widths of mandibular anterior teethb. the space available for permanent canine and premolarc. the width of permanent canines and premolarsd. the space needed for alignment of permanent mandibular central and lateral incisors243 which of the following agents is used for HIV infectiona. amantadineb. acyclovirc. zidovudined. ribavirine. isoniazid244 for oral sedation in the dental setting, the MOST ideal group of agents isa. narcoticsb. barbituratesc. antihistaminesd. benzodiazepinese. anticholinergics245 which of the following is the MOST common postoperative problem associated with mandibularsagittal-split osteotomiesa. infectionb. TMJ painc. Periodontal defectsd. Devitalization of teethe. Neurosensory disturbances246 Which of the following exhibits the MOST personal behavior by the dentistA. leaning toward the patientB. facing directly toward the patientC. being seated 2 feet from the patientD. touching the patient gently on the arm247 the facial surface of the posterior mandible often presents limiting factors to proper treatment ofperiodontal defects. Primary among these factors is/are thea. genital tuberclesb. mentalis musclec. external oblique ridged. internal pterygoid muscle

248 a radiographic exanimation reveals a radiolucent area in the region of the mandibular left third molar.The third molar is not present. The clinical differential diagnoses included all of the following EXCEPTone which one is this EXCEPTIONa. ameloblastomab. residual cystc. odontogenic keratocystd. dentigerous cyste. odontogenic myxoma250 which of the following should be included to ensure the BEST prognosis in the management oflocalized juvenile periodontitisa. systemic antibioticb. chlorhexidinec. high dose of vitamin Cd. free gingival graftse. peroxide rinses251a patient presents for multiple extractions. For the last 10 years, he has been taking 10 mg of prednisonedaily for colitis. after consulting with patient’s physician, the practitioner shoulda. discontinues the patient’s steroid therapy preoperativelyb. halve the patient’s dose of prednisone to 5 mg on the day of surgeryc. switch the patient to another steroid for the preoperative periodd. ask the patient to continue taking the prednisone and consider temporarily increase the dose.252 Initial instrumentation for the biomechanical preparation of a vital tooth should begin at the canalorifice and should end at thea. radiographic apexb. cementodentinal junctionc. cementoenamel junctiond. cement pulpal junction253 in the absence of a second premolar, the roots of the primary second molar will MOST likelya. not resorbb. resorb slowlyc. resorb rapidlyd. resorb normally254 a patient complains that a tooth with a recently placed large MOD restoration is tender to mastercationand exhibits occasional thermal sensitivity. Which of the following is the MOST likely causea. microleakageb. recurrent cariesc. gingival recession

d. premature occlusion255 an x-radiation dose of 4Gy administered locally to a patient’s arm is MOST likely to causea. erythemab. bone marrow deathc. carcinoma of the skind. acute radiation syndrome256 biologic changes in the aging patient affect both pharmacokinetics and pharmacodynamics of drugs,which in turn, are manifested as each of the following EXCEPT one, which one is this EXCEPTIONa. decreased renal excretionb. increased plasma protein bindingc. increased half lives of some drugsd. decreased volume of distribution and sequestration of drug in body fat257 which of the following precautions should the dentist observe when providing dental care for a childwith insulin-dependent diabetesa. no specific precautions are necessaryb. the patient should be seen after a meal and insulin injectionc. the patient should have an empty stomach and should take the insulin before the procedured. the patient should have an empty stomach and postpone the insulin injection until after the proceduree. the patient should be seen after a meal and postpone the insulin injection until after the procedure258 a patient repeatedly criticizes a dentist’s actions. Which of the following techniques is MOST likely toopen a positive dialogue with the patienta. maintain simple silenceb. state the patient’s concernc. ignore the patient’s complaintsd. recognize that the patient has a probleme. correct the patient’s misconception259 following flap surgery, new junctional epithelium can form on either cementum or dentinjunctional epithelium is reestablished as early as one weeka. both statements are trueb. both statements are falsec. the first statement is true, the second is falsed. the first statement is false, the second is true260 each of the following types of viral hepatitis is usually transmitted through blood or bodily fluidEXCEPT one, which one is this EXCEPTIONa. hepatitis Ab. hepatitis B

c. hepatitis Cd. hepatitis De. non A-non B hepatitis261 a patient’s early recovery from an ultrashort acting barbiturate is related primarily toa. redistributionb. breakdown in the liverc. excretion in the urined. breakdown in the bloode. binding to plasma protein262 A patient has pain over the left pre-auricular area, this patient can open approximately 45 mm and hasa “pop-and-click” in the joint area. The MOST likely diagnosis isa. myofacials pain dysfunction syndromeb. internal derangement with reductionc. auriculotemporal syndromed. coronoid hyperplasia263 to expose a mandibular lingual torus of a patient who has a full complement of teeth, the incisionshould toa. semilunarb. paragingivalc. in the gingival sulcus and embrasure aread. directly over the most prominent part of the toruse. inferior to the lesion, reflecting the tissue superior264 in which stage of tooth development does tetracycline discoloration occura. appositionb. proliferationc. mineralizationd. histodifferentiation265 a 4 years old child has a history of frequent spontaneous pain in a primary mandibular second molar.This molar has a necrotic pulp which of the following represents the treatment of choicea. pulpectomyb. pulpotomyc. extractiond. pulp cap266 administration of which of the following narcotics will result in life-threatening complications for apatient who is taking monoamine oxidase (MAO) inhibitorsa. fentanylb. morphinec. nalbuphined. meperidinee. pentazocine

267 for a population, the research divides the number of disease cases by the number of people. By sodoing, this investigator will have calculated which of the following ratesa. incidenceb. odds ratioc. prevalenced. specificity268 which of the following represents the BEST aid to diagnoses an irreversible pulpitisa. electric pulp testb. thermal testc. radiographd. percussione. test cavity269 an apically displaced flap is generally impossible in which of the following areasa. mandibular facialb. mandibular lingualc. maxillary faciald. maxillary palatal270 a 26 years old female patient states that for several years, small, red to white oral lesions have occurredirregularly. They are painful but reveals these lesions are located on alveolar non keratinized mucosa. TheMOST likely diagnosis isa. recurrent aphthous stomatitisb. acute necrotizing ulcerative gingivitisc. recurrent herpes labialisd. acute herpetic gingivostomatitis271 a mandibular first molar crown is severely decayed due to caries. Each of the following procedures canbe used to remove this tooth EXCEPT one. Which one is this EXCEPTIONa. using a cowhorn forcepsb. removing the thin lingual cortical plate of bonec. elevating the root sections with an east-west elevatord. reflecting a modest buccal flap and removing the buccal bone272 superficial decalcification and staining are evident in the buccal groove of a mandibular molar, whichof the following is the treatment of choicea. oral prophylaxis at 3-month intervalsb. daily irrigation with pressurized waterc. complete elimination of the area by preparation and restorationd. enamel plasty limited to the superficial depth of the decalcified enamel273 which of the following is the treatment of choice for lidocaine-induced seizuresa. diazepamb. naloxonec. epinephrine

d. flumazenile. succinylcholine274 which of the following is the earliest clinical sign of a carious lesiona. radiolucencyb. patient sensitivityc. change in enamel opacityd. rough surface texturee. cavitation of enamel275 what is apical position flap? When it is frequently performedafter the flap has been elevated and the necessary treatment has been performed, the gingival is positionedat the crest of bone. Most frequently performed after osseous surgery (crown lengthening)276 what percentage of the population sees a dentist regularly60-65%277 why is midazolam preferred to diazepam for IV injectionmore water soluble278 composite is shrinkage towardcore of the composite279 toxic effect of lidocainestimulation and then depress the CNS280 “punch-out “ lesion on x-ray? Multiple myeloma281 what is the method of HMO payment?Capitation282 what is the percentage of chlorhexidine (0.1-0.2%) remain after rinse30%283 what kind amalgam wrks best to restore proximal contoursadmixed284 reverse architecture mean what in periointerproximal bone .285 preload of implant is comparable to what forcetongue286 keratosis happen in where in mouthpalate287 if a dentist does not his patient his treatment, what kind of behavioral attitude has he takennegligence288 what are the advantages of direct bonding brackets over the conventional ortho band or bracketsa. easier b better OH c. no separation d. all of the above289 how does a light cured composite resin hold to the tooth after the etching has been donea. mechanically b. physically c. chemically d. adhesion290 serial extraction should be used in a patient with which type of malocclusiona. class 1 b. class 2 c. class 3 d. abnormal overbite291 what is the advantage of sagittal split osteotomy over the transoral vertical

subcondylar osteotomya. correct a mandibular protrusionb. it is safer and in the operation room and less painfulc. correct mandibular retrognathiad. correct mandibular prognathism and apertognathiae. all of the abovef. a,c, and d only292 each of the following is characteristic of ectodermal dysplasia excepta. atrophic skin b. blue sclera c. defective hair d. anodontia293 which of the following is used in restored a small portion of a mandiblea. silastic b. tantalum c. homogenous bone d. autogenous bone294 what is the side effect of phenothiazinetardive dyskinesia295 smooth muscle relaxation is caused by which of the following drugsa. prazosin b. atropine c. theophylline d. amphetamine296 when should the lateral sliding flap procedure be donea. shallow vestibuleb. prominent recipient rootc. normal vestibuled. adequate amount of keratinized donor tissue297 best prognosis with surgery for genioplastyinferior border osteotomy298 patient with thyroid problem, what drug must not be usedepinephrine299 what is the organism associated with ANUG infectiona spirochete300 for child with herpetic gingivostomatitis you will do all the following excepta. antibiotic b. give oral rinses before eating c. plenty of bed rest and keep away from other children301 what is the most common psychiatric problem in elderlya. dementia b. depression c. mania302 why bead for RPDto have space for acrylic processes303 patient has faulty amalgam, the dentist proposed treatment to replaced with grown, why?a. protect pulp b. get better contour c. get better margin304 why have guiding planeto provide better retention305 antidote for fluoride overdosemilk or calcium supplement306 high ceiling drugs cause ototoxicity with deafness307 barbiturates should not be taking withcumadine308 why does upper max complete denture break in midlinealveolar resorption309 how long after eating is the PH in the mouth significantly lower

a. 10-30 min b. 1-2 hours c. 2-4 min d. 3-6 hours e. 10-15 min310 all f the following cause vasoconstriction excepta. epinephrine b. norepinephrine c. phenylephrine d. levonor defrin311 patient have history of complains of pain in the lower left posterior region 2 days after extraction. Whatis the most common reasona. normal b. tumor c. alveolar osteitis d. paresthesia312 patient have history of fracture in the mandibular premolar area few years ago. Patient now complainsof a soft, nodular swelling in the region. What is most common reasona. lipoma b. hemangioma c. traumatic neuroma d. neurofibroma313 which of the following can cause bilateral angular cheilitis in a patient with complete denturea. increase VDO b. improper centric relation c. increased interocclusal distance314 opioid agonists act bya. stimulating GABAergic neuron b. increase pain threshold c. acting as Mu receptor agonists315 critical instrument used in or near the oral cavity, which may become contaminateda. with blood and saliva must be b. disinfected between uses c. sterilized between uses d. can be eitherdisinfected or sterilized between uses316 a young child dental patient has had a previous negative experience with a dental handpiece. This childexpresses fear when the dentist reaches for a prophy angle to begin a cleaning. A term that best describesthis phenomenon isa. negative reinforcement b. extinction c. stimulus generalization d. modeling317 which dental employee is least likely to be “exposed” according to OSHA regulationa. dentist b. dental assistant c. dental receptionist d. dental hygienist318 how will you distinguish between periapical cemental dysplasia and chronic apical periodontitisa radiograph b percussion c. vitality test d. pain319 you have given a patient o local anesthetic injection containing epinephrine. The patient feels cold andclammy and the BP goes down to 46. what has most likely occurreda. MI b. stroke c. vasovagal attach d. heart attack320 CHIPa. use in perio diagnosis only b. use in children321 postural hypotension is a common complaint of patients who take antihypertensive agents becausemany of these agents interfere with thea. sympathetic control of vascular reflexesb. release of acetylcholine in the ganglia

c. epinephrine release from the adrenal medullad. parasympathetic control of vascular resistancee. neuromuscular transmission in skeletal muscles