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CH 46 Terms

TermDefinition
Agar Gelatin-type material derived from seaweed used as a thickener
Alginate Irreversible hydrocolloid material used for taking preliminary impressions
Base Foundation or the basic ingredient of a material
Border molding Process of using finger pressure to contour a closer adaptation of the margins of an impression while still in the mouth
Catalyst Substance that modifies or increases the rate of a chemical reaction
Centric Having an object centered, such as maxillary teeth centered over mandibular teeth in correct relation
Colloid Suspension of particles in a dispersion medium such as water. Its two phases are sol and gel
Digital Impression Intraoral scan of a patient’s dentition and gingiva
Elastomeric Materials having elastic properties from rubber
Hydro- Prefix meaning water
Hysteresis Change in temperature that causes the reversible hydrocolloid material to transform from one physical state to another
Imbibition Absorption of water, causing an object to swell
Occlusal Registration Reproduction of a patient’s bite with the use of wax or elastomeric material.
Syneresis Loss of water, causing something to shrink
Tempering Bringing a material to a desired consistency
Viscous / Viscosity Physical property of a fluid related to resistance to flow
Created by: KellsS
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