DDHS 3120 DENTAL ANATOMY EXAM W.8
EXAM 2025 QUESTIONS AND ANSWERS
GRADED A+
At age 16, the seventh tooth from the midline in each mandibular quadrant, is normally a
permanent:
(1) first molar with completed root.
(2) second molar with incomplete root formation.
(3) second molar with completed root.
(4) third molar with incomplete root formation.
(5) third molar with completed root.
3. second molar with completed root
The root of the permanent mandibular third molar normally is fully formed at:
(1) 6-7 years.
(2) 8-10 years.
(3) 12-16 years.
(4) 17-21 years.
(5) 18-25 years.
5. 18-25 years
,On the buccal crown surface of the permanent mandibular first molar, the DB groove normally
terminates:
(1) in the buccal pit.
(2) in the MB pit.
(3) about midway mesiodistally.
(4) near the DB line angle.
(5) in the occlusal third.
4. near the DB line angle
On the occlusal surface of the permanent mandibular second molar, the total number of primary
grooves which unite in the central pit is normally:
(1) 1.
(2) 2.
(3) 3.
(4) 4.
(5) 5.
3. 3
Of the following cusp ridges which are found on the crown of the permanent mandibular first
molar, the one which normally terminates at the lingual groove, is the:
(1) lingual cusp ridge of the ML cusp.
(2) distal cusp ridge of the distal cusp.
(3) mesial cusp ridge of the DL cusp.
(4) buccal cusp ridge of the ML cusp.
,(5) distal cusp ridge of the MB cusp.
3. M cusp ridge of the DL cusp
On the crown of a permanent mandibular first molar, the
largest (bulkiest) cusp is normally the:
(1) MB cusp.
(2) DB cusp.
(3) ML cusp.
(4) DL cusp.
(5) distal cusp.
1. MB cusp
When compared to the permanent mandibular second molar,
the permanent mandibular first molar normally exhibits:
(1) a greater occlusocervical crown height.
(2) generally shorter roots.
(3) more root branches.
(4) all of the above features.
(5) none of the above features.
1. a greater OC crown height
A permanent molar with four cusps and a crown which is
, wider mesiodistally than buccolingually is most likely a:
(1) maxillary first molar.
(2) maxillary second molar.
(3) mandibular first molar.
(4) mandibular second molar.
(5) maxillary third molar.
4. mand second molar
The permanent mandibular right first molar is universal:
(1) # 19.
(2) # 31.
(3) # 3.
(4) # 1.
(5) # 30.
#30
When the permanent mandibular first molar exhibits an
anomaly of root numbers, it is usually manifest in:
(1) two buccal branches and one lingual branch.
(2) two lingual branches and one buccal branch.
(3) two mesial branches and one distal branch.
(4) two distal branches and one mesial branch.
(5) two mesial branches and two distal branches.
EXAM 2025 QUESTIONS AND ANSWERS
GRADED A+
At age 16, the seventh tooth from the midline in each mandibular quadrant, is normally a
permanent:
(1) first molar with completed root.
(2) second molar with incomplete root formation.
(3) second molar with completed root.
(4) third molar with incomplete root formation.
(5) third molar with completed root.
3. second molar with completed root
The root of the permanent mandibular third molar normally is fully formed at:
(1) 6-7 years.
(2) 8-10 years.
(3) 12-16 years.
(4) 17-21 years.
(5) 18-25 years.
5. 18-25 years
,On the buccal crown surface of the permanent mandibular first molar, the DB groove normally
terminates:
(1) in the buccal pit.
(2) in the MB pit.
(3) about midway mesiodistally.
(4) near the DB line angle.
(5) in the occlusal third.
4. near the DB line angle
On the occlusal surface of the permanent mandibular second molar, the total number of primary
grooves which unite in the central pit is normally:
(1) 1.
(2) 2.
(3) 3.
(4) 4.
(5) 5.
3. 3
Of the following cusp ridges which are found on the crown of the permanent mandibular first
molar, the one which normally terminates at the lingual groove, is the:
(1) lingual cusp ridge of the ML cusp.
(2) distal cusp ridge of the distal cusp.
(3) mesial cusp ridge of the DL cusp.
(4) buccal cusp ridge of the ML cusp.
,(5) distal cusp ridge of the MB cusp.
3. M cusp ridge of the DL cusp
On the crown of a permanent mandibular first molar, the
largest (bulkiest) cusp is normally the:
(1) MB cusp.
(2) DB cusp.
(3) ML cusp.
(4) DL cusp.
(5) distal cusp.
1. MB cusp
When compared to the permanent mandibular second molar,
the permanent mandibular first molar normally exhibits:
(1) a greater occlusocervical crown height.
(2) generally shorter roots.
(3) more root branches.
(4) all of the above features.
(5) none of the above features.
1. a greater OC crown height
A permanent molar with four cusps and a crown which is
, wider mesiodistally than buccolingually is most likely a:
(1) maxillary first molar.
(2) maxillary second molar.
(3) mandibular first molar.
(4) mandibular second molar.
(5) maxillary third molar.
4. mand second molar
The permanent mandibular right first molar is universal:
(1) # 19.
(2) # 31.
(3) # 3.
(4) # 1.
(5) # 30.
#30
When the permanent mandibular first molar exhibits an
anomaly of root numbers, it is usually manifest in:
(1) two buccal branches and one lingual branch.
(2) two lingual branches and one buccal branch.
(3) two mesial branches and one distal branch.
(4) two distal branches and one mesial branch.
(5) two mesial branches and two distal branches.
