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DA 122 Dental Materials.  Permanent cementation of {luting} ◦ Crowns, inlays, bridges, ◦ ortho appliances  Base {base}  Liner.

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Presentation on theme: "DA 122 Dental Materials.  Permanent cementation of {luting} ◦ Crowns, inlays, bridges, ◦ ortho appliances  Base {base}  Liner."— Presentation transcript:

1 DA 122 Dental Materials

2  Permanent cementation of {luting} ◦ Crowns, inlays, bridges, ◦ ortho appliances  Base {base}  Liner

3  Primary consistency: ◦ Luting ◦ Thin, creamy  Secondary consistency: ◦ Base ◦ Thick, pastelike

4 Type I Cementation of crowns and bridges Orthodontic bonding Pit and Fissure sealant PRIMARY CONSISTENCY Type II Class III and V restorations (interproximal and gumline) Pediatric restorations PRIMARY CONSISTENCY Type III Liner and dentin-bonding agentPRIMARY CONSISTENCY Type IV Combined with amalgam for crown and core build-ups SECONDARY CONSISTENCY

5  Very high in strength. Provide: ◦ Insulating protection ◦ Low solubility ◦ Prevention against decay (contain fluoride)

6  Beneficial feature of glass ionomer cements:  Fluoride-releasing base ◦ Protection against decay  Chemically bonds to enamel or dentin  Adheres to wet tooth structure

7  Cement-luting: ◦ 2 drops of liquid to 1 scoop of powder ◦ 2:1  Base-thicker consistency: ◦ 1+: 1 ◦ 1+ scoop powder: 1 drop liquid

8  Cement spatula  Treated 3x3 paper pad  Liquid bottle  Powder and scoop  Plastics filling instrument OR disposable syringe for application  Note: this product can be supplied in pre- measured capsule, mixed in amalgamator

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11  Water, immediately  Ultrasonic cleaner with temp cement remover solution, if material is set

12  Before mixing product, tooth needs to be: ◦ Pumiced with non-fluoride paste ◦ Acid etch (10 – 30 seconds) ◦ Rinse with water (30 seconds) ◦ Air dry but do not dessicate; slight moisture needed to prevent later tooth sensitivity  Mix and place glass ionomer cement or base

13 Mix timeWork timeSet time Cement45 – 60 seconds3 ½ minutes7 minutes Base30 seconds3 minutes7 minutes Liner10 – 20 secondsLight-cure

14  Glossy, ½ inch string

15  Ketac-Cement (we use this brand)  Sho-fu  Vitramer  Vitrebond

16  A8YI w2PnDA8YI Copyright 2012 Porter & Chester Institute, Inc. All rights reserved


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