2. DENT 1200 Dental Materials I Lesson 2 Composite

3. Main Objective of Restorative Dentistry Restore is to replace or bring back to natural appearance and function. Esthetics means pleasing in appearance.

4. RESTORATIONS DIRECT Done in mouth Amalgam- ______ Composite- ______ GI- ____________ INDIRECT Done on cast in lab FIXED REMOVEABLE Crown full denture Bridge partial denture Implant Inlay,onlay veneer (casting)

5. Composite Esthetic

6. VOCAB Bondinghttp://ww w.ada.org/public/m edia/videos/minute /cosmetic_bonding _broadband.wmvhttp://ww w.ada.org/public/m edia/videos/minute /cosmetic_bonding _broadband.wmv Fracture

7. 8. Acid Etch After liner is placed- tooth is etched with phosphoric acid for 1 minute to create tags for micromechanical retention tags

8. ADA on Composite http://www.ada.org/public/media/vid eos/minute/cosmetic_composite_bro adband.wmvhttp://www.ada.org/public/media/vid eos/minute/cosmetic_composite_bro adband.wmv

9. 1. 4 Brand names Complete list at www.dentalcomposites.com www.dentalcomposites.com Adaptic by Johnson & Johnson Concise by 3M/ESPE Fuji by GC America Prisma by LD Caulk/Dentsply Heliomolar by Vivadent

10. 2. Use and forms Composite resin cement- perm luting Direct esthetic perm rest ( ant & post) 2 paste ( LC or self cure) Single paste in syringe or compule that goes in a syringe ( LC only)

11. 2. Flowable Composites

12. 2. Composition Resin Matrix- fluid base, BISGMA, dimethacrylate Fillers- quartz, glass, silica microfilled, macrofilled, hybrid Coupling agent- silane

13. 3. Mix/Dispense Select shade before prep Prep Liner if needed- no ZOE Matrix- ant/ celluloid post/ toff Etch rinse Prime dry Adhesive LC Composite- LC

14. 3. Mix/Dispense 2 paste- mix equal amounts Dispense- pass syringe or extrude sm amount from syringe onto pad In general- keep covered until use

15. 4. Finish Remove excess/flash scalpel Trim with sandpaper strip, sandpaper disk on mandrel or diamond finishing bur

16. 4 Finishing

17. 4. Post Op Material is fully set Be careful if area is numb Tooth may be temperature sensitive( cold)

18. 5. Shelf Life Follow manufacturers expiration date Shorter shelf life/ use life than amalgam Store in refrigerator

19. 6. Cost

21. 7. Light Cure VS self cure Polymerization- chemical set

22. 9. Safety Do not allow acid to touch patient tissues!!!!! Do not look into the curing light!!!! Shields are available

23. 10. Vocab Most contained in presentation Celluloid Strip/ Mylar strip- anterior, replaces matrix, keeps materials from touching adjacent teeth

24. Shade Guide

25. The End