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Dental Materials 164
unit 3 PIMA
| Question | Answer |
|---|---|
| Zinc phosphate cement is used... 2 | For final cementation of crowns and bridges As a sedative agent |
| Zinc oxide-eugenol cement is used as a... 2 | Cement to attach temporary crowns Sedative base |
| TorF? Resin cements are used to Lute porcelain veneers and ceramic crowns and bond orthodontic brackets... | True |
| What Cement(s) have demonstrated the ability to adhere to teeth... | Zoe Glass ionomers |
| _________ is placed with a cotton pellet... | Copal varnish |
| TorF? Zinc phosphate, glas ionomer, ZOE cement, and resin cements may be used for final (permanent) cementation of crowns... | False |
| _________ would not be considered high strength base? | calcium hydroxide |
| _________ materials may be used over pulp exposures... | calcium hydroxide |
| __________ material helps promote formation of secondary dentin... | calcium hydroxide |
| What is the primary reason why zinc phosphate is not used much anymore... | Pulpal irritation |
| What cement would be most irritating to the pulp... | Zinc phosphate |
| Best method for control setting time of zinc phosphate cements is... | Temp of mixing slab |
| TorF? Use of less powder in poeder to liquid ratio will shorten the setting time... | False |
| The consisteray of zinc phosphate is correct for cementation (luting) when mix... | strings an inch above the slab |
| If water evaporates from liquid of zinc phosphate cement... | setting time is retarded |
| ________ is not considered a lutting cement for permanent restoration | ZOE (Zinc Oxide Eugenol) |
| What should be done if exess cement powder is left on the mixing slab... | throw away |
| Factors that lengthen or retard the setting time of zinc phosphate... 3 | mixed on cooled slab (65-68 degree) small increment powder mix on large area |
| TorF? Glass ionomer is used cementation of crown, bridges, ortho brackets, pit and fissures of sealants... | True |
| Zinc Oxide Eugenol cement should not be use directly to... | composites |
| Zinc phosphate | 60-90sec |
| ZOE | 22min |
| Calcium hydroxide | 10-15min |
| Cavity barnish is applied to seal the _______in cavity prep... | dentinal tubules |
| Is a anticariogenic found in glass ionomers, resin, etc... | Flouride |
| Placement of varnish on the dentin of prep tooth... 4 | air dry between applications place on floor and wall of preparation two coats minimum use cotton pallet |
| Intermidiate restoration provide extended period of clinical observation for a tooth with questionable prognosis... | IRM |
| TorF? Cavity varnish should be placed under calcium hydrovide... | True |