(46)

Question 1

agar

Answer 1

gelatin-type material derived from seaweed

Question 2

alginate

Answer 2

irreversible hydrocolloid material used for taking preliminary impressions

Question 3

base

Answer 3

foundation or the basic ingredient of a material

Question 4

border molding

Answer 4

process of using fingers to contour a closer adaptation of the margins of an impression while still in the mouth.

Question 5

catalyst

Answer 5

substance that modified or increases the rate of a chemical reaction

Question 6

centric

Answer 6

having an object centered
such as maxillary teeth centered over mandibular teeth in correct relation

Question 7

colloid

Answer 7

a suspension of particles in a dispersion medium such as water. it has two phases; sol (solution) and gel.

Question 8

elastometric

Answer 8

material having elastic properties from rubber

Question 9

hydro

Answer 9

prefix. means water

Question 10

hysterisis

Answer 10

a change in temperature that causes the reversible hydrocolloid material to transform from one physical state to another

Question 11

imbibition

Answer 11

absorption of water which causes an object to swell

Question 12

occlusal registration

Answer 12

reproduction of a patient’s bite with the use of wax or elastomeric material

Question 13

syneresis

Answer 13

loss of water, causing something to shrink

Question 14

tempering

Answer 14

bringing a material to a desired consistency