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

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.

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

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

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

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

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

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

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

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

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

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

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 1.5-2.0 mm ferrule

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

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

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 156.63 (4.23) Cosmopost 152.01 (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).

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).

Benefits of the Physical Properties (3/4) Post Flex. Str. (Mpa) Fibrekor 277.92 (27.68) Luscent 579.93 Cerapost 454.25 (105) Cosmopost 357.37 (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).

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

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

Procedure – Simple Technique 1 PATHFINDER Reamer PROBOS II

Procedure – Simple Technique Diamond Alcohol Air dry OR 2

Procedure – Simple Technique Etch H20 Air Dry 3

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

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

Procedure – Review 1 2 3 4 5 6

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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