1
TCDHA DENTAL MATERIALS MIDTERM EXAM
WITH COMPLETE QUESTIONS AND ANSWER
[VERIFIED ANSWERS
Obstructive sleep apnea - CORRECT ANSWER>>A sleep disorder caused when
the muscles that support the soft palate, uvula, and tongue relax and the airway
narrows or closes
Mouth guard - CORRECT ANSWER>>A hard or pliable material that protects
teeth from trauma during sporting activities or from grinding of the teeth
Space maintainer - CORRECT ANSWER>>A fixed or removable appliance used to
prevent adjacent teeth from drifting into the space created when a tooth is lost
Orthodontic tooth aligners - CORRECT ANSWER>>Removable appliances that
are designed to gently move teeth into predetermined positions
alginate impression material - CORRECT ANSWER>>can be immersed in an
appropriate disinfectant for up to 30 min without distorting
material subject to repeated stress such as in mastication may be subject to
fracture due to - CORRECT ANSWER>>fatigue failure
, 2
Galvanism - CORRECT ANSWER>>The phenomenon of electric current being
transmitted between two dissimilar metal
Thermal conductivity - CORRECT ANSWER>>The rate at which heat flows
through material over time
internal reaction to an externally applied force is called - CORRECT
ANSWER>>stress
Retainer - CORRECT ANSWER>>part of bridge that fits over the abutment
Pontic - CORRECT ANSWER>>false/artificial tooth
Abutment - CORRECT ANSWER>>supporting natural tooth
esthetic materials used for restoration of enamel need high? - CORRECT
ANSWER>>vitality leakage of fluids and debris extending along the tooth
restoration interface is called - CORRECT ANSWER>>microleakage
excessive film thickness may cause - CORRECT ANSWER>>improper seatiing of
restoration
TCDHA DENTAL MATERIALS MIDTERM EXAM
WITH COMPLETE QUESTIONS AND ANSWER
[VERIFIED ANSWERS
Obstructive sleep apnea - CORRECT ANSWER>>A sleep disorder caused when
the muscles that support the soft palate, uvula, and tongue relax and the airway
narrows or closes
Mouth guard - CORRECT ANSWER>>A hard or pliable material that protects
teeth from trauma during sporting activities or from grinding of the teeth
Space maintainer - CORRECT ANSWER>>A fixed or removable appliance used to
prevent adjacent teeth from drifting into the space created when a tooth is lost
Orthodontic tooth aligners - CORRECT ANSWER>>Removable appliances that
are designed to gently move teeth into predetermined positions
alginate impression material - CORRECT ANSWER>>can be immersed in an
appropriate disinfectant for up to 30 min without distorting
material subject to repeated stress such as in mastication may be subject to
fracture due to - CORRECT ANSWER>>fatigue failure
, 2
Galvanism - CORRECT ANSWER>>The phenomenon of electric current being
transmitted between two dissimilar metal
Thermal conductivity - CORRECT ANSWER>>The rate at which heat flows
through material over time
internal reaction to an externally applied force is called - CORRECT
ANSWER>>stress
Retainer - CORRECT ANSWER>>part of bridge that fits over the abutment
Pontic - CORRECT ANSWER>>false/artificial tooth
Abutment - CORRECT ANSWER>>supporting natural tooth
esthetic materials used for restoration of enamel need high? - CORRECT
ANSWER>>vitality leakage of fluids and debris extending along the tooth
restoration interface is called - CORRECT ANSWER>>microleakage
excessive film thickness may cause - CORRECT ANSWER>>improper seatiing of
restoration
