DENT 1200 DENT 1200 Dental Dental

Materials IMaterials ILesson 2 CompositeLesson 2 Composite

Main Objective of Restorative Main Objective of Restorative DentistryDentistry

• Restore is to replace or bring back to natural appearance and function.

• Esthetics means pleasing in appearance.

RESTORATIONSRESTORATIONS• DIRECT Done in mouth Amalgam-______

Composite-______

GI-____________

• INDIRECT Done on cast in lab

FIXED REMOVEABLE Crown full dentureBridge partial dentureImplantInlay,onlayveneer (casting)

CompositeCompositeEstheticEsthetic

VOCABVOCAB

• Bondinghttp://www.ada.org/public/media/videos/minute/cosmetic_bonding_broadband.wmv

Fracture

8. Acid Etch8. Acid Etch• After liner is placed- tooth is etched

with phosphoric acid for 1 minute to create tags for micromechanical retention

tags

ADA on CompositeADA on Composite• http://www.ada.org/public/media/vide

os/minute/cosmetic_composite_broadband.wmv

1. 4 Brand names1. 4 Brand names• Complete list at

www.dentalcomposites.com• Adaptic by Johnson & Johnson• Concise by 3M/ESPE• Fuji by GC America• Prisma by LD Caulk/Dentsply• Heliomolar by Vivadent

2. Use and forms2. 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)

2. Flowable Composites2. Flowable Composites

2. Composition2. Composition• Resin Matrix- fluid base, BISGMA, dimethacrylate • Fillers- quartz, glass, silica microfilled, macrofilled, hybrid• Coupling agent- silane

3. Mix/Dispense3. 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

3. Mix/Dispense3. Mix/Dispense• 2 paste- mix equal amounts• Dispense- pass syringe or extrude

sm amount from syringe onto pad

• In general- keep covered until use

4. Finish4. Finish• Remove

excess/flash scalpel

• Trim with sandpaper strip, sandpaper disk on mandrel or diamond finishing bur

4 Finishing4 Finishing

4. Post Op4. Post Op• Material is fully set• Be careful if area is numb• Tooth may be temperature sensitive(

cold)

5. Shelf Life5. Shelf Life• Follow manufacturers expiration date• Shorter shelf life/ use life than

amalgam• Store in refrigerator

6. Cost6. Cost

6. Cost6. Cost

7. Light Cure VS self cure7. Light Cure VS self cure• Polymerization- chemical set

9. Safety9. Safety• Do not allow acid

to touch patient tissues!!!!!

• Do not look into the curing light!!!!

• Shields are available

10. Vocab10. Vocab• Most contained in presentation• Celluloid Strip/ Mylar strip- anterior,

replaces matrix, keeps materials from touching adjacent teeth

Shade GuideShade Guide

The EndThe End