DA 122 Dental Materials. Purpose Category of materials used to prepare the teeth for restorative...
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Transcript of DA 122 Dental Materials. Purpose Category of materials used to prepare the teeth for restorative...
![Page 1: DA 122 Dental Materials. Purpose Category of materials used to prepare the teeth for restorative materials Mixed at chairside by the DA, at direction.](https://reader030.fdocuments.net/reader030/viewer/2022032805/56649ef65503460f94c0a88e/html5/thumbnails/1.jpg)
Dental CementsDA 122 Dental Materials
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PurposeCategory of materials used to prepare the
teeth for restorative materialsMixed at chairside by the DA, at direction of
the dentistDA responsible for maintaining materials and
mixing equipmentEach type of material may have a variety of
uses or consistencies
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Supplied as:Powder/liquid kitsTwo-paste systems (base and catalyst)CapsuleDispensing syringe
Most mixed manually but some come in capsules and are mixed mechanically
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Powder + liquid
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Two-paste System
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Capsules
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Amalgamator for Capsules
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Liquid syringe
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ConsistenciesPrecise ratios used to get specific consistency
Range from liquid solution, luting consistency, and putty consistency
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Luting consistency
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Putty Consistency
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Setting/curingSelf-curing: chemical reaction
between two materialsLight cured: require a special curing
light
Dual-cured: combine self-curing properties and light-curing techniques
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Curing Light
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TerminologyLuting: bonding or cementing together
inlays, onlays, crowns, bridgesPermanent luting cement: long-term
cementing agentTemporary luting cement: short-term
cementing agentIntermediate luting cement: lasts 6-12
months
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Terminology (continued)Liner: material placed in a thin layer on
walls and floor of cavity preparation; protects pulp from bacteria and irritants
Base: putty or thick layer between tooth and restoration; protects pulp from chemical irritation, temperature changes, electrical protection, mechanical injury
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Liner, Base, Varnish
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Terminology (continued)Sedative or palliative effect: soothing effect
on a tooth; may relieve pain but does NOT cure the problem
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Armamentarium for Dental CementsMixing pad or slabCement kitCement SpatulaPlastics Filling Instrument Gauze Clean-up supplies
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Armamentarium
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Common Dental CementsZinc phosphate (ZnP)
Zinc Oxide Eugenol (ZOE)
Polycarboxylate
Glass Ionomer• Copyright 2012 Porter & Chester Institute, Inc. All rights reserved