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FACTORS

INFLUENCING

TOOTH ERUPTION

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1. Age :-

2. Genetics :-

3. Race:-eruption timing seems to be earlier inthe American black and Indian population

than in American whites of European origin

4. Sex :-Except for the 3rdmolar Females tendto calcify and erupt their permanent teeth

about five month earlier than males.

FACTORS INFLUENCING

TOOTH ERUPTION

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6. Environment :-

1. Socio economic group

2.Climate

7. General Factors :-

1.Disease

2.Hormones3.Metabolism

4.Vit- C deficiency

5. Height and Weight :- Taller and

heavier have greater number of erupted

teeth then shorter and lighter children

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Local Factors :-

1.Pathology, trauma, ankylosis

2.Early Loss of Primary teeth

3.Delayed Loss of Primary teeth4.Impaction / Crowding

5.Supernumerary teeth

6.Space Available

7.Degree of Root Formation

8.Growth Factor

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ERUPTION

DISORDERS OF

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Premature Accelerated

Tooth EruptionAll these Conditions are Attributed to asuperficial position of Forming tooth GermThese may be:-

1.Natal Teeth :-Present at the time of

birth.

2.Neo Natal Teeth:-Erupts with in 30

days after birth.

3.Preerupted Teeth:-Appear in 2nd or 3rd

Month after birth.

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atal teeth

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Delayed Tooth Eruption

Situations in which it occurs:-

1.Ankylosis

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2.Congenital Hypothyroidism

3.Juvenile acquired Hypothyroidism

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4.Cleidocranial Dysplasia

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5.Downsyndrome

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6.Gingival Fibromatosis

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7.Amelogenesis Imperfecta

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8. EPIDERMOLYSIS BULLOSA

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9. Mucopolysaccaridosis

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Others are:-

9. Achondroplasia

10.Regional Odonto Dysplasia

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TEETHING

Physiological process of eruption of primarydentition through the gingiva

Clinical features:-A) Local signs-

1.Hyperemia or swelling of the mucosa

overlying the erupting teeth

2. Patches of erythema on the cheeks

3. Flushing in the skin of adjacent cheek

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Systemic signs:-

1. General irritability & crying

2. Loss of appetite

3. Sleeplessness, restlessness

4. Increase salivation & drooling

5. Insanity

6. Increase thirst

7. Circumoral rash

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TEETHING

DISORDERS

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TEETHING PROBLEMS

Discomfort resulting from teething dueto pressure exerted on periodontalmambrane

SYSTEMIC PROBLEMS:-1.Fever2. Diarrhoea

3. Vomiting4. Convulsions5. Bronchitis

6. Infantile paralysis

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LOCAL PROBLEMS:-

1.Eruption hematoma

2. Eruption sequestrum

3. Ectopic eruption

4. Transmigration

5.Transposition

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1.Eruption hematoma