TCDHA DENTAL MATERIALS MIDTERM
PRACTICE EXAMINATION TEST 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS HIGH SCORE PREP RESOURCE
GRADED A+
⩥ Moisture contamination contributes to ineffective bonding?
Answer: True
⩥ Enamel bonding is stronger than dentin bonding?
Answer: True
⩥ Composite resins light cured in large increments can contribute to
hypersensitivity?
Answer: True
⩥ The primer is applied following the bonding resin?
Answer: False, it happens before
⩥ The smear layer is composed of cut tooth debris, bacterial plaque, and
bodily which interferes with the formation of bond to the pulp?
Answer: False
,⩥ What is the name of the acid commonly used to etch tooth structure?
Answer: phosphoric acid
⩥ How is bonding to enamel achieved?
Answer: requires only a low viscosity liquid resin monomer that will
penetrate into the spaces on and between enamel rods created by acid
etching
⩥ What causes dentin sensitivity?
Answer: over etched dentin
⩥ How is dentin bonding best achieved?
Answer: Adhesion occurs by removal of smear layer and formation of
micro tags within intertubular dentin
⩥ glazing phase?
Answer: (baking) 2nd step, completed after final contouring of crown.
⩥ sintering phase?
Answer: (contouring) 1st step, heat ceramic particles to melting poing
then fuse to adjacent particles at boarders.
, ⩥ As a dental hygienist how would you describe a veneer to your client?
Answer: Thin layers of esthetic materials that are bonded to the anterior
portion of the mouth.
⩥ Ceramics appear similar to natural teeth because they are fluorescent?
Answer: False
⩥ Ceramics appear opalescent, that is, they emit light in the visible wave
spectrum when ultraviolet light hits them?
Answer: False
⩥ The more aesthetic the ceramic is, the more polycrystalline particles
are found in it?
Answer: False, its glass particles
⩥ Computer-Assisted Machining does not require dies or temporary
crowns allowing the dentist to prepare and deliver the restoration in the
same process?
Answer: True
⩥ Ultrasonic scalers can chip and craze margins of esthetic materials
Answer: True
PRACTICE EXAMINATION TEST 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS HIGH SCORE PREP RESOURCE
GRADED A+
⩥ Moisture contamination contributes to ineffective bonding?
Answer: True
⩥ Enamel bonding is stronger than dentin bonding?
Answer: True
⩥ Composite resins light cured in large increments can contribute to
hypersensitivity?
Answer: True
⩥ The primer is applied following the bonding resin?
Answer: False, it happens before
⩥ The smear layer is composed of cut tooth debris, bacterial plaque, and
bodily which interferes with the formation of bond to the pulp?
Answer: False
,⩥ What is the name of the acid commonly used to etch tooth structure?
Answer: phosphoric acid
⩥ How is bonding to enamel achieved?
Answer: requires only a low viscosity liquid resin monomer that will
penetrate into the spaces on and between enamel rods created by acid
etching
⩥ What causes dentin sensitivity?
Answer: over etched dentin
⩥ How is dentin bonding best achieved?
Answer: Adhesion occurs by removal of smear layer and formation of
micro tags within intertubular dentin
⩥ glazing phase?
Answer: (baking) 2nd step, completed after final contouring of crown.
⩥ sintering phase?
Answer: (contouring) 1st step, heat ceramic particles to melting poing
then fuse to adjacent particles at boarders.
, ⩥ As a dental hygienist how would you describe a veneer to your client?
Answer: Thin layers of esthetic materials that are bonded to the anterior
portion of the mouth.
⩥ Ceramics appear similar to natural teeth because they are fluorescent?
Answer: False
⩥ Ceramics appear opalescent, that is, they emit light in the visible wave
spectrum when ultraviolet light hits them?
Answer: False
⩥ The more aesthetic the ceramic is, the more polycrystalline particles
are found in it?
Answer: False, its glass particles
⩥ Computer-Assisted Machining does not require dies or temporary
crowns allowing the dentist to prepare and deliver the restoration in the
same process?
Answer: True
⩥ Ultrasonic scalers can chip and craze margins of esthetic materials
Answer: True
