CDT exam prep questions
the tissue stop of a custom tray should? - Answer-support the tray but not displace the tissue.
after trimming an orthodontic solder joint with stone or bur the next step is to use the - Answer-rubber
wheel or point
which type of jaw relationship is used to set a semi- adjustable articulator? - Answer-lateral and
protrusive records
pure silver melts at - Answer-1761°F
if a gold is 750 fine, what is the percentage of gold it contains? - Answer-75%
the depth of a keyway of a stress breaker attachment should be at least.... - Answer-twice as deep as it is
wide
triangular ridge runs from______ to _______ - Answer-buccal cusp to cental sulcus
the primary purpose of a protrusive check-bite is to... - Answer-set the horizontal condylar path
according to the universal classification, the patients upper right second bicuspid is numbered - Answer-
4
the lateral component of the compensating curve is called the - Answer-curve of wilson
, spot welding depends on - Answer-pressure, current and time
what impression material must be poured immediately? - Answer-hydrocolloid
porcelain and the alloy used for the framework must have similar coefficients of thermal expansion to -
Answer-increase the strength of porcelain to metal bond during firing
which articulator gives a fair simulation of a patients actual mamdibular movements because of its
adjustable features? - Answer-semi adjustable
an alloy with which specific gravity would be expected to produce the most cast units? a. 18 b. 16 c. 10
d. 8 - Answer-s. 8
If a technician mixing an acid solution pours water into acid, what would most likely occur? - Answer-
splashing and risk of severe burns
narrow cracks which may appear in tooth enamel are called - Answer-fissures
Two problems most frequently encountered in the construction of orthodontic clasps are - Answer-
inadequate retention and occlusal interference
casts from addition reaction silicone impressions may exhibit multiple surface voids as a result of
impression exuding - Answer-hydrogen bubbles
the complete denture is designed to replace - Answer-all of the natural teeth
with a gas-oxygen torch which valve should be closed first? - Answer-gas to the torch
the tissue stop of a custom tray should? - Answer-support the tray but not displace the tissue.
after trimming an orthodontic solder joint with stone or bur the next step is to use the - Answer-rubber
wheel or point
which type of jaw relationship is used to set a semi- adjustable articulator? - Answer-lateral and
protrusive records
pure silver melts at - Answer-1761°F
if a gold is 750 fine, what is the percentage of gold it contains? - Answer-75%
the depth of a keyway of a stress breaker attachment should be at least.... - Answer-twice as deep as it is
wide
triangular ridge runs from______ to _______ - Answer-buccal cusp to cental sulcus
the primary purpose of a protrusive check-bite is to... - Answer-set the horizontal condylar path
according to the universal classification, the patients upper right second bicuspid is numbered - Answer-
4
the lateral component of the compensating curve is called the - Answer-curve of wilson
, spot welding depends on - Answer-pressure, current and time
what impression material must be poured immediately? - Answer-hydrocolloid
porcelain and the alloy used for the framework must have similar coefficients of thermal expansion to -
Answer-increase the strength of porcelain to metal bond during firing
which articulator gives a fair simulation of a patients actual mamdibular movements because of its
adjustable features? - Answer-semi adjustable
an alloy with which specific gravity would be expected to produce the most cast units? a. 18 b. 16 c. 10
d. 8 - Answer-s. 8
If a technician mixing an acid solution pours water into acid, what would most likely occur? - Answer-
splashing and risk of severe burns
narrow cracks which may appear in tooth enamel are called - Answer-fissures
Two problems most frequently encountered in the construction of orthodontic clasps are - Answer-
inadequate retention and occlusal interference
casts from addition reaction silicone impressions may exhibit multiple surface voids as a result of
impression exuding - Answer-hydrogen bubbles
the complete denture is designed to replace - Answer-all of the natural teeth
with a gas-oxygen torch which valve should be closed first? - Answer-gas to the torch
