2024 | 650 EXAM QUESTIONS AND
CORRECT ANSWERS (PROFESSOR
VERIFIED) | LATEST EDITION (JUST
RELEASED)
What is defined as a COLONY of microorganisms within a protective polysaccharide
SLIME layer?
A. calculus
B. caries
C. bacterial plaque -----CORRECT ANSWER----------------bacterial plaque
Which part of the plaque formation are microcolonies formed?
A. Adhesion
B. Acquired pellicle
C. Colonization -----CORRECT ANSWER----------------Colonization
Which part of the plaque formation do bacteria bind to the pellicle within hours?
A. Adhesion
B. Acquired pellicle
C. Colonization -----CORRECT ANSWER----------------Adhesion
Which part of the plaque formation is a thin film coating over the tooth immediately on
exposure to saliva?
A. Adhesion
B. Acquired pellicle
C. Colonization -----CORRECT ANSWER----------------Acquired pellicle
What is the nutrient source for supra-gingival plaque and calculus?
A. saliva
B. GCV (gingival crevicular fluid
C. Food
,D. Vitamins -----CORRECT ANSWER----------------saliva
What is the nutrient source for subgingival plaque and calculus?
A. saliva
B. GCV (gingival crevicular fluid
C. Food
D. Vitamins -----CORRECT ANSWER----------------GCV
What is mineralized plaque biofilm?
A. Enamel
B. Cementum
C. Calculus
D. Bone -----CORRECT ANSWER----------------Calculus
Which type of calculus is found CORONAL to the gingival margin, is yellow, white, or
grey, and commonly found NEAR the openings of salivary ducts and the LINGUALS of
the mandibular anterior teeth and BUCCALS of the maxillary molars?
A. subgingival calculus
B. Supragingival calculus
C. Spicules -----CORRECT ANSWER----------------supragingival calculus
Which type of calculus is found APICAL to the gingival margin, is BLACK, DARK
BROWN, OR DARK GREEN and commonly form NODULES?
A. subgingival calculus
B. Supragingival calculus
C. Spicules -----CORRECT ANSWER----------------Subgingival calculus
Which type of mobility is movable in any direction and DEPRESSIBLE IN socket?
A. Class I
B. class II
C. class III -----CORRECT ANSWER----------------class III
Which type of mobility is has a movement GREATER than 1mm in any direction. NOT
depressible in the socket?
,A. Class I
B. class II
C. class III -----CORRECT ANSWER----------------Class II
Which type of mobility movement up to 1mm in any direction?
A. Class I
B. class II
C. class III -----CORRECT ANSWER----------------Class I
What type of probe is used to measure furcation? -----CORRECT ANSWER----------------
Nabers probe
Which type of FURCATION is the concavity detected with instrument, but the furcation
CANNOT be entered
A. Class I
B. Class II
C. Class III
D. Class IV -----CORRECT ANSWER----------------Class I
Which type of FURCATION does the instrument pass COMPLETELY through furcation,
which is clinically VISIBLE due to gingival recession. Radiolucency in furcation is visible.
A. Class I
B. Class II
C. Class III
D. Class IV -----CORRECT ANSWER----------------Class IV
Which type of FURCATION does the instrument ENTER furcation from one aspect, but
CANNOT pass completely through (or to palatal root on maxillary). Radiolucency may
be visible.
A. Class I
B. Class II
C. Class III
D. Class IV -----CORRECT ANSWER----------------class II
, Which type of FURCATION does the instrument pass completely through furcation,
which is still COVERED by soft tissue. Radiolucency in the furcation is visible.
A. Class I
B. Class II
C. Class III
D. Class IV -----CORRECT ANSWER----------------class III
Which Angel's classification of malocclusion does the mesiobuccal cusp of the maxillary
first molar lie DISTAL to the buccal groove of the mandibular first molar?
A. Class I
B. Class II Division I
C. Class II Division II
D. Class III -----CORRECT ANSWER----------------Class III (prognathic)
Which Angel's classification of malocclusion does the mesiobuccal cusp of the maxillary
first molar lie in the buccal groove of the mandibular first molar?
A. Class I
B. Class II Division I
C. Class II Division II
D. Class III -----CORRECT ANSWER----------------Class I (mesognathic)
Which Angel's classification of malocclusion does the mesiobuccal cusp of the maxillary
first molar lie MESIAL to the buccal groove of the mandibular first molar?
A. Class I
B. Class II
D. Class III -----CORRECT ANSWER----------------Class II (retrognathic)
Which Angel's classification of malocclusion of Division II are the front MAXILLARY
teeth normal or PROTRUDED -----CORRECT ANSWER----------------class II, division I
Which Angel's classification of malocclusion of Division II are the front MAXILLARY
teeth are RETRUDED? -----CORRECT ANSWER----------------class II, division II