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chapter 46

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 material having elastic properties from rubber.
hydro means 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: user-1959373
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