DENT 1200 Dental Materials I L2 Glass Ionomer. 1. 4 Types and Uses Type I- perm luting prosth and...
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Transcript of DENT 1200 Dental Materials I L2 Glass Ionomer. 1. 4 Types and Uses Type I- perm luting prosth and...
DENT 1200 DENT 1200 Dental Dental
Materials IMaterials IL2 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 and
tin to powder) NO MERCURY• Liquid-acrylic acid and other acids • polyacrylic acid- can be used in place
of conditioner to remove smear layer
3. Forms3. Forms• P&L• 2 Paste• Capsule
Perm rest=capsule
4. Advantages & 4. Advantages & Disadvantages of GIDisadvantages of GI
• F• Bond to enamel• Strong in thin layer• Less soluble• TOOTH DOES NOT
HAVE TO BE COMPLETELY DRY
• Irritating to gingival tissue
• cost
5. Mix, Place, Post op5. Mix, Place, Post op• Activate capsule• Triturate capsule for 10 sec• Place capsule in applicator- click 3
times• Pass to DR
• Post op- be careful if numb, may be sensitive to temp (cold)
Cost? $4/eaCost? $4/ea
VocabVocab
• Core build up- put GI in tooth before crown prep because not enough tooth is left to cement a crown onto
Undercut-mechanical Undercut-mechanical retentionretention
• Not needed with composite or GI
My FamilyMy Family