TCDHA DENTAL MATERIALS MIDTERM
TEST BANK EXAMS SET 2026 TESTED
QUESTIONS AND VERIFIED ANSWERS
EXPERT REVIEWED GRADED A+
⩥ Restorative material in the 1800s.
Answer: amalgam
⩥ Who REGULATES the safety of dental medical DEVICES?.
Answer: Food and Drug Administration (FDA)
⩥ Who EVALUATES dental drugs, materials, instruments and
equipment in the dental field?.
Answer: American Dental Association (ADA)
⩥ The ______ symbol attempts to unify standards throughout its
member countries.
Answer: CE
⩥ ____________________ are used to replace small to moderate
amounts of tooth structure
,___________ are used to restore teeth with a substantial amount of tooth
structure missing.
Answer: restorations;
crowns
⩥ Teeth that support each end of a bridge are called?.
Answer: abutments
⩥ A crown restoring an abutment tooth is called a?.
Answer: bridge retainer
⩥ The false tooth that replaces the missing tooth is called a
___________.
Answer: pontic
⩥ An impression is a (PICK ONE: negative or positive) copy.
Answer: negative
⩥ A restoration constructed on the replica is called.
Answer: cast
⩥ A replica of a single tooth is called.
,Answer: a die
⩥ _________ provide thermal insulation or mechanical protection at the
bottom of a restoration; Thick,
while ___________ protect the pulp from irritants; Medicate the pulp;
Seals dentin; Thin.
Answer: bases; liners
⩥ T or F
Direct materials are placed directly on the tooth structure; Indirect
materials are made beforehand, outside of the dental office and placed
later.
Answer: true
⩥ Give some examples of direct restorative materials?.
Answer: composite; amalgam
⩥ Give some examples of indirect restorative materials?.
Answer: crowns; inlays
⩥ Know the classifications of caries.
Answer: Class 1 - pits and fissures
Class 2 - interproximal posteriors
, Class 3 - Interproximal anteriors
Class 4 - Interproximal + Incisal edge of anterior
Class 5 - gingival
Class 6 - cusp tips and incisal edges only
⩥ Classification of "longevity of use", can be broken down into 3
categories.
Answer: Permanent;
Temporary;
Interim
⩥ Interim restorations can also be called?.
Answer: "long term temporary" restorations
⩥ Crystalline bonds have a ___________ arrangement, while
Amorphous bonds have a(n) ____________ arrangement.
Answer: regular; random (irregular)
⩥ Glass is an example of a(n) ________________ solid bond structure.
Answer: amorphous
⩥ Diamonds and table salt are examples of a(n) ________________
solid bond structure.
TEST BANK EXAMS SET 2026 TESTED
QUESTIONS AND VERIFIED ANSWERS
EXPERT REVIEWED GRADED A+
⩥ Restorative material in the 1800s.
Answer: amalgam
⩥ Who REGULATES the safety of dental medical DEVICES?.
Answer: Food and Drug Administration (FDA)
⩥ Who EVALUATES dental drugs, materials, instruments and
equipment in the dental field?.
Answer: American Dental Association (ADA)
⩥ The ______ symbol attempts to unify standards throughout its
member countries.
Answer: CE
⩥ ____________________ are used to replace small to moderate
amounts of tooth structure
,___________ are used to restore teeth with a substantial amount of tooth
structure missing.
Answer: restorations;
crowns
⩥ Teeth that support each end of a bridge are called?.
Answer: abutments
⩥ A crown restoring an abutment tooth is called a?.
Answer: bridge retainer
⩥ The false tooth that replaces the missing tooth is called a
___________.
Answer: pontic
⩥ An impression is a (PICK ONE: negative or positive) copy.
Answer: negative
⩥ A restoration constructed on the replica is called.
Answer: cast
⩥ A replica of a single tooth is called.
,Answer: a die
⩥ _________ provide thermal insulation or mechanical protection at the
bottom of a restoration; Thick,
while ___________ protect the pulp from irritants; Medicate the pulp;
Seals dentin; Thin.
Answer: bases; liners
⩥ T or F
Direct materials are placed directly on the tooth structure; Indirect
materials are made beforehand, outside of the dental office and placed
later.
Answer: true
⩥ Give some examples of direct restorative materials?.
Answer: composite; amalgam
⩥ Give some examples of indirect restorative materials?.
Answer: crowns; inlays
⩥ Know the classifications of caries.
Answer: Class 1 - pits and fissures
Class 2 - interproximal posteriors
, Class 3 - Interproximal anteriors
Class 4 - Interproximal + Incisal edge of anterior
Class 5 - gingival
Class 6 - cusp tips and incisal edges only
⩥ Classification of "longevity of use", can be broken down into 3
categories.
Answer: Permanent;
Temporary;
Interim
⩥ Interim restorations can also be called?.
Answer: "long term temporary" restorations
⩥ Crystalline bonds have a ___________ arrangement, while
Amorphous bonds have a(n) ____________ arrangement.
Answer: regular; random (irregular)
⩥ Glass is an example of a(n) ________________ solid bond structure.
Answer: amorphous
⩥ Diamonds and table salt are examples of a(n) ________________
solid bond structure.
