DENT 1200DentalMaterials IDENT 1200DentalMaterials I
L2 Glass IonomerL2 Glass Ionomer
1. 4 Types and Uses1. 4 Types and Uses
•Type I- perm luting prosth and ortho
•Type II- perm restoration
•Type III- liner and bonding
•Type IV- metal modified, build up
2. Composition2. Composition
•Powder- zinc oxide, aluminum oxide,calcium, F
( If metal modified- add silver andtin to powder) NO MERCURY
•Liquid-acrylic acid and other acids
•polyacrylic acid- can be used in placeof conditioner to remove smear layer
3. Forms3. Forms
•P&L
•2 Paste
•Capsule
Permrest=capsule
4. Advantages &Disadvantages of GI4. Advantages &Disadvantages of GI
•F
•Bond to enamel
•Strong in thin layer
•Less soluble
•TOOTH DOES NOTHAVE TO BECOMPLETELY DRY
•Irritating togingival tissue
•cost
5. Mix, Place, Post op5. Mix, Place, Post op
•Activate capsule
•Triturate capsule for 10 sec
•Place capsule in applicator- click 3times
•Pass to DR
•Post op- be careful if numb, may besensitive to temp (cold)
Cost? $4/eaCost? $4/ea
VocabVocab
•Core build up- put GI in tooth beforecrown prep because not enoughtooth is left to cement a crown onto
Undercut-mechanicalretentionUndercut-mechanicalretention
•Not needed with composite or GI
My FamilyMy Family
