1. DENTATUS AB A world leader in the design & manufacture of dental products

2. At-a-Glance - Technique & Clinical Cases
80 YEARS OF SWEDISH QUALITY IN THE GLOBAL DENTAL SERVICE
Twin Luscent Anchors
Dentatus, known worldwide as a designer of systems and manufacturer of innovative dental products, produces a wide range of precision high tech dental products that are distributed worldwide.

3. Twin Luscent Anchors
Light Translucent Esthetic Posts for Endodontically Treated Teeth
The Twin Luscent winning combination
Light transmission
Attractive esthetics
Twice the retention

4. Primary Benefits Patient Superior functional and esthetic restoration
Clinician
Time-saving procedure, superior end product
Strong
Strengthens the restoration

5. Primary Benefits
Fast
One-stop procedure: simultaneously luting the anchor and building a monoblock core
Convenient
Compatible with brand name dual-cure adhesives/resins
Removable
Easily removed using Dentatus reamers

6. 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

7. Light Transmitting
Twin Luscent Anchors effectively polymerize composite within the deep confines of canals

8. Light Transmitting 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

9. Monoblock Strength
Light or dual-cure composites bond to the fiberglass-reinforced anchors and the canal wall creating a cohesive and very strong foundation

10. Reduced Incidence of Root Fractures
Twin Luscent Anchors absorb and dissipate sudden stresses
Potential fracture location with fiberglass-reinforced composite posts
Fractured Post and Crown
Fractured Post and Crown
Vector of Force
Vector of Force
Potential fracture location with metal posts
Fractured root
Fractured root
Vector of Force
Vector of Force

11. Removable
Anchors are easily removed with either a large size NiTi rotary engine file or Dentatus Reamer

12. Removable – Example 1/2 Post fracture-post removal
Cut post flush to tooth
Create pilot in post with pin drill
Remove post with Gates Glidden #4 or Probos Pathfinder
Continue to remove post with largest nickel titanium rotary file

13. Removable – Example 2/2
Probos Pathfinder or Gates Glidden down the center of the post
Large Nickel Titanium file in rotary handpiece to remove remaining post
After removal of post, resize canal with another post
Cement post or cast post and core
Restore with at least mm ferrule

14. Anchor Design - Twin Luscent Anchor
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
Original Luscent Anchor
Optimal choice for very narrow and small canals, from 0.8 mm to 1.2mm
True taper

15. 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
apical seal
CEJ
Twin Luscent
Luscent

16. Benefits of the Physical Properties (1/4)
Longitudinal fiberglass rods in a bondable matrix resin with low modulus or elasticity closely resembling that of dentin, 20.1 Gpa.
Post
Mod. Elast. (Gpa)
Fibrekor
22.22 (.94)
Luscent
20.41 (1.97)
Cerapost
(4.23)
Cosmopost
(3.15)
Finished Elements Manners (FEM) of the stress in the interface dentin-post
Steel post maximum stress 7.51 Mpa
Carbon post maximum stress 3.45 Mpa
Glass 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.
Al-Harbi FA, Nathanson D. Mechanical and retentive properties of new aesthetic posts. J Dent Tex 80 (AADR Abstracts) 2001, (Boston University, Boston Mass).

17. Benefits of the Physical Properties (2/4)
Post
Core ret. (KN)
Fibrekor
0.422 (0.052)
Luscent
0.308 (0.028)
Cerapost
0.301 (0.040)
Cosmopost
0.296 (0.044)
High adhesion to composite materials. The glass fibers contain silica similar to filler materials.
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).

18. Benefits of the Physical Properties (3/4)
Post
Flex. Str. (Mpa)
Fibrekor
(27.68)
Luscent
579.93
Cerapost
(105)
Cosmopost
(9.44)
Flexural strength within the range of healthy teeth and outperforming metal posts, 579 Mpa.
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).

19. Benefits of the Physical Properties (4/4)
In Vitro Post-Tooth Retention
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
Source: Al-Harbi FA, Nathanson D. BU, 2001

20. 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

21. Procedure – Simple Technique1
PATHFINDER
Reamer
PROBOS II

22. Procedure – Simple Technique
Diamond
Alcohol
Air dry OR 2

23. Procedure – Simple Technique
Etch
H20
Air Dry 3

24. Procedure – Simple Technique
Bonding Agent
Dual-Cure Resin* 4

25. Procedure – Simple Technique
Light Cure
Insert 5
Core Build up
Core Preparation 6

26. Procedure – Review 1 2 3 4 5 6

27. Case Study 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

28. 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

29. 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

30. Preoperative View
Endodontically treated maxillary lateral incisor with defective Class 3 restorations and an endodontic access opening Twin Luscent Anchor
Decision to restore with adhesive composite resin supported by a bondable Twin Luscent Anchor

31. Post Space The length of the canal was determined with a radiograph
Sized reamers determined the Twin Luscent size to be used
Post space (length) was created by removing the gutta percha with a Pathfinder then a Luscent Reamer

32. Anchor Placement
Twin Luscent Anchor was tried into the canal and length verified
Canal was etched for 15 seconds

33. Rinsing and drying the canal
Canal was rinsed using an endodontic irrigation syringe with water
Canal was dried with a large paper point

34. Adhesive application
A 4th-generation adhesive was used with a separate primer and adhesive resin in the root canal
The adhesive must be either a dual cure or self-cure adhesive compatible with a self-cure or dual-cure composite resin cement

35. Cementation of Twin Luscent
Twin Luscent Anchor painted with adhesive
Dual-cure composite resin cement syringe into the canal with a Needle Tube

36. Anchor Placement
Twin Luscent Anchor seated into the root canal and cemented. Note, twirling motion used in seating the anchor.
Light cure for 60 seconds

37. 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 3s with composite resin. Note, no discoloration of gingiva with Twin Luscent Anchor.
Preparation for an all-ceramic crown

38. All ceramic crown cementation
Preparation etched for 15 seconds, rinsed and dried
Dentin primer painted on preparation

39. All ceramic crown cementation
Dual cure adhesive painted on preparation
All-ceramic crown cemented with dual-cure composite resin cement

40. Final all-ceramic crown
Excess cement removed; crown light cured for 30 seconds on facial surface, 30 seconds on lingual surface
The final restoration, highly esthetic and translucent

41. Assortments and Refills
LUT-K1, Twin Luscent Starter Kit
15 anchors (assorted s, m, l)
with all accessories
LUC-K3, Luscent Starter Kit
15 anchors (assorted s,m,l)
Refill Kits
5 or 15 anchors (individual size only)
Light transmitting Forms-to-Fit