Occlusion Board Exam 2025
Questions With 100% Correct Answers
In a normal protrusive contacting movement of the mandible, the maxillary central contacts the
mandibular
A. canine.
B. lateral incisor.
C. central incisor.
D. central and lateral incisors. - CORRECT ANSWER✔✔D
2. The maxillary canine is most likely to articulate with which of the following permanent teeth?
A. First premolar only
B. Lateral incisor only
C. Canine and first premolar
D. Lateral incisor and canine
E. First premolar and second premolar - CORRECT ANSWER✔✔C
In ideal tooth relationship, the tip of the mandibular canine, in lateral excursion, passes
A. distally to the tip of the maxillary canine cusp.
B. mesially to the tip of the maxillary canine cusp.
C. directly in line with the maxillary canine cusp tip.
D. through the embrasure between the maxillary canine and first premolar. - CORRECT
ANSWER✔✔B - *mesially to to tip of the maxillary canine cusp*
,4. Which of the following muscles assists in retrusion of the mandible
A. Lateral pterygoid
B. Masseter
C. Medial pterygoid
D. Digastric
E. Sternocleidomastoid - CORRECT ANSWER✔✔D - Retrusion muscles = anything going
posterioly fibers *temporalis posterior fibers + digastric + geniohyoid*
5. In an ideal occlusion, the mesiolingual cusp of the permanent mandibular second molar
opposes the
A. embrasure between the maxillary first and second molars.
B. distal fossa of the maxillary second molar.
C. lingual sulcus of the maxillary second molar.
D. central fossa of the maxillary second molar.
E. mesial fossa of the maxillary third molar. - CORRECT ANSWER✔✔A (picket fense)
6. What muscle tissues form the floor of the mouth in the lingual vestibule?
A. Lingual
B. Stylohyoid
C. Buccinator
D. Mylohyoid
E. Sphenomandibular - CORRECT ANSWER✔✔D
8. Incisal wear of anterior teeth increases the ratio of lingual surface crown length to labial
surface crown length in
,A. maxillary canines only.
B. mandibular canines only.
C. all maxillary anterior teeth.
D. all mandibular anterior teeth. - CORRECT ANSWER✔✔D - all anterior teeth have incisal wear
In an ideal occlusion, the buccal cusps of maxillary posterior teeth occlude with
A. grooves and embrasures.
B. grooves only.
C. embrasures only.
D. marginal ridges and embrasures.
E. marginal ridges only. - CORRECT ANSWER✔✔A
10. The drawing below represents a facial view of permanent mandibular teeth. If teeth are in
normal occlusion and alignment, which area of an opposing tooth will approximate the areas
indicated by the dark lines?
A. Lingual aspect of the incisal edge of a lateral incisor
B. Lingual aspect of the cuspal ridges of a canine
C. Facial aspect of the cuspal ridges of a canine
D. Lingual aspect of the facial cusp ridges of a first premolar
E. Incisal edges of a lateral incisor and a canine - CORRECT ANSWER✔✔B
11. In the drawing below, which number identifies centric relation?
, A. 1
B. 2
C. 3
D. 4
E. 6 - CORRECT ANSWER✔✔D - "4 = CR and 3 = CO"
12. The non-working condyle performs which of the following movements?
A. Straight forward
B. Downward, forward and laterally.
C. Downward, forward and medially
D. Downward, backward and laterally
E. Downward, backward and medially - CORRECT ANSWER✔✔C
13. Blood vessels and nerves are relatively scarce in which component of the disk?
A. Articular capsule
B. Anterior portion of the disk
C, Central portion of the disk
D. Posterior portion of the disk
E. Retrodiscal tissue - CORRECT ANSWER✔✔C
Identify the mandibular movement depicted in the drawing below.
Questions With 100% Correct Answers
In a normal protrusive contacting movement of the mandible, the maxillary central contacts the
mandibular
A. canine.
B. lateral incisor.
C. central incisor.
D. central and lateral incisors. - CORRECT ANSWER✔✔D
2. The maxillary canine is most likely to articulate with which of the following permanent teeth?
A. First premolar only
B. Lateral incisor only
C. Canine and first premolar
D. Lateral incisor and canine
E. First premolar and second premolar - CORRECT ANSWER✔✔C
In ideal tooth relationship, the tip of the mandibular canine, in lateral excursion, passes
A. distally to the tip of the maxillary canine cusp.
B. mesially to the tip of the maxillary canine cusp.
C. directly in line with the maxillary canine cusp tip.
D. through the embrasure between the maxillary canine and first premolar. - CORRECT
ANSWER✔✔B - *mesially to to tip of the maxillary canine cusp*
,4. Which of the following muscles assists in retrusion of the mandible
A. Lateral pterygoid
B. Masseter
C. Medial pterygoid
D. Digastric
E. Sternocleidomastoid - CORRECT ANSWER✔✔D - Retrusion muscles = anything going
posterioly fibers *temporalis posterior fibers + digastric + geniohyoid*
5. In an ideal occlusion, the mesiolingual cusp of the permanent mandibular second molar
opposes the
A. embrasure between the maxillary first and second molars.
B. distal fossa of the maxillary second molar.
C. lingual sulcus of the maxillary second molar.
D. central fossa of the maxillary second molar.
E. mesial fossa of the maxillary third molar. - CORRECT ANSWER✔✔A (picket fense)
6. What muscle tissues form the floor of the mouth in the lingual vestibule?
A. Lingual
B. Stylohyoid
C. Buccinator
D. Mylohyoid
E. Sphenomandibular - CORRECT ANSWER✔✔D
8. Incisal wear of anterior teeth increases the ratio of lingual surface crown length to labial
surface crown length in
,A. maxillary canines only.
B. mandibular canines only.
C. all maxillary anterior teeth.
D. all mandibular anterior teeth. - CORRECT ANSWER✔✔D - all anterior teeth have incisal wear
In an ideal occlusion, the buccal cusps of maxillary posterior teeth occlude with
A. grooves and embrasures.
B. grooves only.
C. embrasures only.
D. marginal ridges and embrasures.
E. marginal ridges only. - CORRECT ANSWER✔✔A
10. The drawing below represents a facial view of permanent mandibular teeth. If teeth are in
normal occlusion and alignment, which area of an opposing tooth will approximate the areas
indicated by the dark lines?
A. Lingual aspect of the incisal edge of a lateral incisor
B. Lingual aspect of the cuspal ridges of a canine
C. Facial aspect of the cuspal ridges of a canine
D. Lingual aspect of the facial cusp ridges of a first premolar
E. Incisal edges of a lateral incisor and a canine - CORRECT ANSWER✔✔B
11. In the drawing below, which number identifies centric relation?
, A. 1
B. 2
C. 3
D. 4
E. 6 - CORRECT ANSWER✔✔D - "4 = CR and 3 = CO"
12. The non-working condyle performs which of the following movements?
A. Straight forward
B. Downward, forward and laterally.
C. Downward, forward and medially
D. Downward, backward and laterally
E. Downward, backward and medially - CORRECT ANSWER✔✔C
13. Blood vessels and nerves are relatively scarce in which component of the disk?
A. Articular capsule
B. Anterior portion of the disk
C, Central portion of the disk
D. Posterior portion of the disk
E. Retrodiscal tissue - CORRECT ANSWER✔✔C
Identify the mandibular movement depicted in the drawing below.
