The document contains 25 multiple choice questions about dental anatomy and features of various teeth, primarily the upper and lower first permanent molars. Key details tested include the location of the cusp of Carabelli, geometric shapes of occlusal surfaces, number and types of roots and root canals, sizes of cusps, and fossae patterns. Overall, the questions assess knowledge of identifying and distinguishing characteristics of different teeth.
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1. Unique Questions
1-Cusp of Carabelli is found in:
Upper first permanent molar
B-Upper second permanent molar
C –Upper first deciduous molar
D- Lower first permanent molar
2- The geometric outline of the occlusal surface of the upper first permanent molar is:
A- Square
B-Rhomboid
C- Trapezoid
D- Heart shape
3-The largest tooth in the oral cavity is:
A- Upper first permanent molar
B-Upper second permanent molar
C- First upper premolar
D- Lower second permanent molar
4-The oblique ridge is found in:
A- Lower permanent first molar
B- Upper permanent first molar.
C- Upper second premolar
D-Lower first premolar
5- The smallest cusp in the lower first permanent molar is:
A- Mesiobuccal
B- Distobuccal
C- Distal
D- Distolingaul
6- The geometric outline of the lower first permanent molar is:
A- pentagonal
B-Diamond
C- Rhomboid
D- Oval
2. 7- Which tooth has 4 fossae?
A- Lower third molar
B- Upper first permanent molar
C- Lower permanent second molar
D- Lower first permanent molar
8- The oblique ridge in upper permanent molars passing from:
A-Mesiobuccal& distolingaul cusp
B- Mesiolingual& distobuccal cusp
C- Mesiobuccal & mesiolingual cusp
D- Distobuccal & distolingual cusp
9-The cusp of Carabelli is found on:
A- Upper first permanent molar
B- Upper second permanent molar
C- Lower second permanent molar
D- Lower first permanent molar
10- The largest cusp in the upper first permanent molar is:
A- Mesiobuccal
B- Distobuccal
C- Mesiolingual
D- Distolingaul
11-The occlusal surface of upper 6
is rhomboidal in shape with:
a- Acute mesiobuccal & distolingual angles.
b- Obtuse mesiobuccal & distolingual angles.
c- Acute distobuccal & distolingual angles.
d- Obtuse distobuccal & acute mesiolingual angles
12-How many roots does the maxillary first molar have?
a-One lingual and two mesial.
b-Two facial and two lingual.
c-One palatal and two facial.
d-Two mesial and one lingual.
13-The root of upper 6
which has banana shape from the proximal aspect is:
3. a- The mesiobuccal root.
b- The distobuccal root.
c- The mesiolingual root.
d- The palatal root.
14- The longest of the roots of the upper 6 is:
a- The mesiobuccal root.
b- The distobuccal root.
c- The lingual root.
d- The palatal root
15- The major fossae found on the occlusal surface of the permanent upper first molar are:
a- The mesial and distal triangular fossa.
b- The central fossa and the mesial triangular fossa.
c- The distal fossa and the distal triangular fossa.
d- The central fossa and the distal fossa.
16- The fossae found on the occlusal surface of the permanent lower first molar are:
a- The central fossa, the mesial and distal triangular fossa.
b- The central fossa and the mesial triangular fossa.
c- The central fossa and the distal triangular fossa.
d- The mesial and distal triangular fossae.
17-The smallest cusp on a permanent mandibular first molar is the
a. mesiobuccal
b. cusp of Carabelli
c. distolingual
d. distal
18-Which one of the following permanent molars has the largest mesiodistal measurement of its crown
a. maxillary first
b. maxillary second
c- mandibular first
d-mandibular second.
19-Which of the following teeth is most likely to present a 'heart shaped' occlusal surface:
a. maxillary first molar
b. maxillary second molar
4. c- mandibular first molar
d-mandibular second molar.
20-The lower 6 has the following root canals:
a- One mesial & one distal.
b- Two buccal & one lingual.
c- Two distal & one mesial.
d- Two mesial & one distal.
21-What is the longest root on the maxillary permanent first molar
a. mesiobuccal root
b. distobuccal root
c. lingual root
d. mesial root
22-Which one of the molars is most likely to exhibit a cross occlusal groove pattern
a. maxillary first molar
b. maxillary second molar
c- mandibular first molar
d-mandibular second molar.
23-Which of the following molars MOST frequently have only three cusps?
a. Mandibular first molar
b. Mandibular third molar
c. Maxillary first molar
d. Maxillary second molar
24-The occlusal surface of the lower
7
is:
a- Hexagonal.
b- Rhmboidal.
c- Rectangular.
d- Trapezoidal
25- The size of the cusps of the permanent lower first molar arranged in a descending order is as follows:
a- Mesiobuccal, distobuccal, mesiolingul & distolingual and the distal cusp.
b- Mesiolingual, mesiobuccal, distobuccal, distolingual and the distal.
c- Mesiobuccal, mesiolingual and distolingual, distobuccal and distal.
d- Mesiolingual, distolingual, mesiobuccal, distobuccal and distal.