Dental Materials
25 important questions on Dental Materials
Coefficient of thermal expansion
Amalgam properties and containment's
silver is susceptible to corrosion
Durable
compressive strength comparable to enamel
inexpensive
Bonding Agent (BIS-GMA) components and action
light activated polymerization
isolate working field from saliva
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Sealants components and action
pumice, rinse, isolate, etch, rinse, dry, apply, remove excess, polymerize
mechanical retention
Composite components and action
fillers are usually silicates, quartz or glass with barium or strontium
Nanofilled-Micro-Hybrid is blend of choice
Liners components and action
calcium hydroxide-stimulates dentin to repair
zinc-oxide/eugenol-soothes pulp
resin-modified gloss ionomer- releases fluoride
Zinc phosphate cement
Glass ionomer cement
releases fluoride
thermal expansion and contract similar to tooth
class V restorative
Zinc-oxide/eugenol cement
Aqueous hydrocolloid irreversible impression material
irreversible
not temperature dependent
susceptible to imbibition and syneresis (swelling and shrinking)
popular choice
Non-aqueous polysulfide rubber impression material
Non-aqueous polyether rubber impression material
will distort if left wet
Non-aqueous silicone rubber impression material
Non-aqueous vinylpolysiloxane impression material
Alpha-calcium sulfate hemi-hydrate gypsum product
stone
Type III
Beta-calcium sulfate hemi-hydrate gypsum product
plaster
Type II
Inlay and casting wax
Bite registration wax
Casting alloys purpose
Precious alloys with noble metals
gold,platinum, and palladium
Nonprecious alloys with base metals
silver, copper, nickle, tin and zinc
Tarter control formula toothpastes
cause of dentinal hypersensitivity
Gum care toothpastes
antimicrobial agent
Class I restorations
Class V restorations
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