dental materials

the melting range can best be described as
A. the point at which the wax flows
B. the temperature of the heat source required
C. the point at which wax softens
D. a comination of melting points

a direct wax pattern is fabricated in the mouth. which property of the inlay wax is the most important
A. excess residue
B. residual stress
C. melting range
D. flow

a wax pattern is invested and burned out in the lost wax procedure. which property of the inlay wax is the most important
A. flow
B. removal of excess residue
C. residual stress
D. melthing range

the wax used to form a base into which to pour a gypsum model is
A. boxing wax
B. pattern wax
C. basplate wax
D. sticky wax

utility wax ropes are used to
A. make forms for wax bite registrations
B. make corrections in undercut areas of impression
C. hold components together for repair
D. adapt the periphery of impression trays

the sprue is used in the lost wax procedure to
A. make the channel into which molten metal is forced
B. hold the wax pattern in the investment
C. aid in loweirn the melthing range of the wax
D. account for delayed expansion and contraction in the final casting

if it is necessary to store a wax pattern or bite registration, it should be stored
A. refrigerated
B. in a cool dry place
C. at room teperature
D. wraped in guaze

bite registrations are used to
A. record the amount of force used in biting
B. hold models together during articulation
C. record the occlusal relationship between maxillary and mandibular teeth
D. record how much force is exerted by the teeth