Upload
dentistryinfo
View
1.384
Download
3
Embed Size (px)
Citation preview
1 of 41
Benefits
Procedure
Case Study
Kits
Literature
The Twin Luscent winning combination:
• light transmission
• esthetic
• twice the retention
Twin Luscent Anchors Light Transmitting Esthetic Posts for Endodontically Treated Teeth
2 of 41
Superior functional and esthetic restoration
Patient
Time-saving procedure, superior end product
Clinician
Primary Benefits
3 of 41
Strengthens the restorationStrong
Compatible with brand name dual-cure adhesives/resinsConvenient
Single visit procedure: simultaneously luting the anchor and building a monoblock core
Fast
Removable Easily removed using Dentatus reamers
Primary Benefits
4 of 41
Esthetic
Twin Luscent Anchors eliminate shadows at the gingival, root and crown interface as well as through thin composite restoration
Twin Luscent Anchors reflect the surrounding colors and hues compatible with natural esthetics
5 of 41
Including:
• Large canals weakened after endondontic treatment
• Extension of caries into the coronal portion and pulp chamber
• Developmental anomalies
• Trauma or over-preparation of root canal
Light Transmitting
Twin Luscent Anchors effectively polymerize composite within the deep confines of canals
6 of 41
Light or dual-cure composites bond to the fiberglass-reinforced anchors and the canal wall creating a cohesive and very strong foundation
Monoblock Strength
7 of 41
Clinicians Report: Reduced Incidence of Root Fractures
Potential fracture location with fiberglass-reinforced composite postsTwin Luscent
Anchors absorb and dissipate sudden stresses
Vector of Force
Vector of Force
FracturedPost and
Crown
FracturedPost and Crown
Potential fracture location with metal posts
Vector of Force
Fracturedroot
Vector of Force
Fracturedroot
8 of 41
Removable
Anchors are easily removed with either a large size NiTi rotary engine file or Dentatus Reamer
Example
Post fracture-post removal
• Cut post flush to tooth
• Create pilot hole with small round bur
• Remove post with Gates Glidden #4 or Probos Pathfinder
• Continue to remove post with largest nickel titanium rotary file
9 of 41
Example (continued)
• Probos Pathfinder or Gates Glidden down the center of the post
• Large Nickel Titanium file in rotary handpiece to remove remaining post
• Cement post or cast post and core
• Restore with at least 1.5-2.0 mm ferrule
Removable
10 of 41
Element Benefit
Narrow radial midsection
Mechanical resistance
Provides double retention against accidental debonding of resins and other restorative materials
Longitudinal vent-grove
Easy release of excess resin
Eliminates hydro-static pressure
Anti-rotational resistance
Creates an anti-rotational resistance in the surrounding polymerized resin
Cone-shaped end/parallel end
Double end alternatives
Cone-shaped end can be placed in deeper/narrower canals without excess removal of dentin or canal wall
Parallel and can be alternatively placed into wider canals
Anchor DesignTwin Luscent Anchor
Original Luscent Anchor
Optimal choice for very narrow and small canals, from 0.8 mm to 1.2mm
True taper
11 of 41
Shape Matches Root Form
Twin Luscent and Luscent Anchors completely fit within the confines of natural teeth
Anchor design is tapered apically to match root form, minimizing unnecessary removal of dentin in the canal
Twin Luscent Luscent
apical
seal
CEJ
12 of 41
Benefits of the Physical Properties
Longitudinal fiberglass rods in a bondable matrix resin has modulus of elasticity most closely resembling dentin
Post Mod. Elast.
Fibrekor 22.22
Luscent 20.41
Cerapost 156.63
Cosmopost 152.01
Source: Al-Harbi FA, Nathanson D. Mechanical and retentive properties of new aesthetic posts. J Dent Tex 80 (AADR Abstracts) 2001, (Boston University, Boston Mass).
Finished Elements Manners (FEM) ofthe stress in the interface dentin-post
Steel post maximum stress 7.51 MpaCarbon post maximum stress 3.45 MpaGlass post maximum stress 2.22 Mpa
The results show the best behavior of glass fiber posts which are the most elastic.
Source: Sandro Rengo. Atti del Ill Simposio Internazionale Odontioiatria Adesiva e Ricosruttiva
Dentin 20.10
13 of 41
Benefits of the Physical Properties
High adhesion to composite materials. The glass fibers contain silica similar to filler materials.
Post Core ret. (KN)
Fibrekor 0.422 (0.052)
Luscent 0.308 (0.028)
Cerapost 0.301 (0.040)
Cosmopost 0.296 (0.044)
Source: Al-Harbi FA, Nathanson D. Mechanical and retentive properties of new aesthetic posts. J Dent Tex 80 (AADR Abstracts) 2001, (Boston University, Boston Mass).
14 of 41
Benefits of the Physical Properties
Flexural strength within the range of healthy teeth and outperforming metal posts, 579 Mpa.
Post Flex. Str. (Mpa)
Fibrekor 277.92 (27.68)
Luscent 579.93
Cerapost 454.25 (105)
Cosmopost 357.37 (9.44)
Source: Al-Harbi FA, Nathanson D. Mechanical and retentive properties of new aesthetic posts. J Dent Tex 80 (AADR Abstracts) 2001, (Boston University, Boston Mass).
15 of 41
Benefits of the Physical Properties
In Vitro Post-Tooth Retention
0
100
200
300
400
500
600
700
Cerapost Cosmopost Luscent TwinLuscent
FiberKor ParaPost ParaPost(ZOP)
• All posts inserted to same length (9mm)• All posts cemented with resin cement (Bisco) except “ParaPost (ZOP”
that were cemented with zinc phosphate cement (as a control)• All ParaPosts are titanium
(n)
Source: Al-Harbi FA, Nathanson D. BU, 2001
16 of 41
Benefits Summary
Light transmitting
True root canal shape(tapered end)
Mechanical retention
Elimination of trapped air
Longitudinal glass fibers(post reinforcement)
Conserves sound radicular and coronal structure
Translucent
Anti-rotational
Easy removal
3 diameters of posts
Bondable, resin-based
17 of 41
Simple Technique
PATHFINDER Reamer PROBOS II
1
18 of 41
Simple Technique
Diamond Alcohol Air dry
21
OR
19 of 41
Simple Technique
Etch H20 Air Dry
31
2
20 of 41
Simple Technique
Bonding Agent Dual-Cure Resin*
4
* Clinicians suggest 4th-generation adhesives/resins
1
3
2
21 of 41
Simple Technique
Core Build up
Core Preparation
5 61
3
4
LightCure
Insert
2
22 of 41
Simple Technique Review
1 2 3
4 5 6
23 of 41
C A S E S T U D Y
Restoring the Endodontically Treated Tooth with Fiber Reinforced Resin Posts
Howard E. Strassler, DMD, FADM, FAGD
Department of Restorative Dentistry
Dental School
University of Maryland
24 of 41
Indications for fiber posts
• Need for esthetic translucency
• Need for root reinforcement, sealing
and strengthening
• At least 1.5 mm ferrule in the tooth preparation
• Provide for a monoblock system of core bonded to post bonded to tooth
• Create a failsafe design* that if traumatized the tooth crown and post would fracture leaving the root intact
*Indicated by Research
25 of 41
Important points for post selection
• Posts must transmit light to eliminate gingival and tooth shadowing
• Post should be tapered following the true shape of the root canal and leaving more radicular dentin
• Post should not transmit forces down the root during trauma; the post should dissipate forces and fracture before the tooth and root
• If broken, the post be easily removed
• Post comes in multiple sizes to accommodate different root canal diameters
26 of 41
• Decision to restore with adhesive composite resin supported by a bondable Twin Luscent Anchor
Preoperative View
• Endodontically treated maxillary lateral incisor with defective Class 3 restorations and an endodontic access opening
27 of 41
Post Space
• Post space (length) was created by removing the gutta percha with a Pathfinder then a Luscent Reamer
• The length of the canal was determined with a radiograph
• Sized reamers determined the Twin Luscent size to be used
28 of 41
• Canal was etched for 15 seconds
Anchor Placement
• Twin Luscent Anchor was tried into the canal and length verified
29 of 41
Rinsing and drying the canal
• Canal was dried with a large paper point
• Canal was rinsed using an endodontic irrigation syringe with water
30 of 41
Adhesive application
• The adhesive must be either a dual cure or self-cure adhesive compatible with a dual-cure or light-cure composite resin cement
• A 4th-generation adhesive was used with a separate primer and adhesive resin in the root canal
31 of 41
Cementation of Twin Luscent
• Dual-cure composite resin cement syringe into the canal with a Needle Tube
• Twin Luscent Anchor painted with adhesive
32 of 41
Anchor placement
• Light cure for 60 seconds
• Twin Luscent Anchor seated into the root canal and cemented
Note, twirling motion used in seating the anchor
33 of 41
Preparation for all-ceramic crown• The Twin Luscent Anchor was cut
down to the level of the access with a diamond on a high speed handpiece
Restoration of the access and Class 3’s with composite resin. Note, no discoloration of gingiva with Twin Luscent Anchor
• Preparation for an all-ceramic crown
34 of 41
All ceramic crown cementation
• Dentin primer painted on preparation
• Preparation etched for 15 seconds, rinsed and dried
35 of 41
All ceramic crown cementation
• All-ceramic crown cemented with dual-cure composite resin cement
• Dual cure adhesive painted on preparation
36 of 41
Final all-ceramic crown
• The final restoration, highly esthetic and translucent
• Excess cement removed; crown light cured for 30 seconds on facial surface, 30 secondson lingual surface
37 of 41
Kits
LUT-K1Twin Luscent Starter Kit15 anchors (assorted s,m,l)
with all accessories
LUC-K1*Luscent Starter Kit12 anchors (assorted s,m,l)
with all accessories
Refill Kits
15 anchors (individual size only)
Light transmitting Forms-to-Fit
*Packages of 15 and 30 Anchors available in European and Asian markets
A Leader in Innovation . . . Developing Products in Time for the Future
Light transmitting posts
1990 — Dentatus introduces the firstLight Transmitting Technology
Fiber Resin
1999 — Dentatus introduces the first LightTransmitting Fiberglass Posts
Metal posts
1932 — Dentatus introduces the first Prefabricated Metal Post
Aztec Ti post2003
Luminex1990
Luscent Anchor1999
Twin Luscent
Anchor2002
Surtex Classic1998
Dentatus Classic Posts, adapted incrementally to developing
treatment modes and materials, have stood the test of time.
ClassicGold1932
Classic
Titanium1972
Classic
Stainless Steel1989
Dentatus is committed to bringing you products quickly and in anticipation of market needs
Sweden +46-8-546 509 00U.S.A. 212-481-1010
800-323-3136
For ordering information or to learn more about Dentatus products, please call or visit us at:
www.dentatus.com
Post Systems
Finishing & Polishing
Implant Products
Diamonds
Parallel-A-Prep
© 2003, Dentatus AB/USA