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labs and Models
Vocab.
Question | Answer |
---|---|
speeds the process of | accelerates |
process used with utility wax to curb impressions | beading |
starts or accelerates a process | catalyst |
change in shape | distortion |
releases heat | ecothermic |
a solid | gel |
a frame representating the jaw that holds models of the patents teeth to maintain the patients occlusion | articulator |
the time from which the alginate powder material is mixed with water. | gelatin time |
the process of driving a specific amount of water out of gypsum to create specific plasters | calcination |
uniformly mixed | homogenous |
calcium sulfate dehydrated; used when pouring an impression th make a model | gypsum |
imbition | enlargement due to selling |
commonly called alginate; material used in the formation of dental impressions | irreversible hydrocolloid |
an essential artificial wall used to replace the missing or removed surfaces of a tooth during the filling of a cavity | matrix |
self curing acrylic tray resin (liquid catalyst) | monomer |
self curing tray resin ( powder) | Polymer |
material used in taking final impressions | polysulfide |
sometimes called agar-agar used in the formation of dental impressions that can be converted from a gel to a sol back to a gel due to thermal reaction | reversible hydrocolloid |
materials avaialable in various forms used in taking final impressions | silicones |
a liquid | sol |
diagnostic casts | study models |
skrinkage from a loss of water content due to heat, dryness, or exposure to air | syneresis |
properties of becoming softer when heated and harder when col |