Questions

Question 1

From which view is only one root visible on a mandibular first molar? (ONE ANSWER)
A) Mesial
B) Distal
C) Buccal
D) Lingual
E) Apical

Answer 1

A) Mesial

Question 2

The second mandibular molar erupts: (ONE ANSWER)
A) In place of temporary M2
B) In place of permanent M1
C) In place of temporary PM1
D) Mesial to permanent M3
E) Distal to PM2 temporary

Answer 2

D) Mesial to permanent M3

Question 3

Question 3: Occlusal perimeter: (ONE ANSWER)
A) It consists of sagittal ridges and mesio-distal ridges
B) It consists of occlusal ridges and marginal ridges
C) It consists of occlusal ridges and marginal fossae
D) It consists of sagittal ridges and essential ridges
E) It is located at the level of the vestibular face

Answer 3

B) It consists of occlusal ridges and marginal ridges

Question 4

The most frequent eruption complications occur in: (ONE ANSWER)
A) Premolars
B) Lower first molars
C) Upper 2nd molars
D) Upper 3rd molars
E) 2nd lower premolars

Answer 4

D) upper 3rd molars

Question 5

Third maxillary molar International System: (ONE ANSWER)
A) 1.8; 2.8
B) 18; 28
C) 1.6; 2.6
D) 1.5; 2.5
E) 16; 26

Answer 5

A) 1.8; 2.8

Question 6

Third mandibular molar: (ONE ANSWER)
A) 38; 1.7
B) 4.6; 1.7
C) 4.8; 1.7
D) 3.8; 17
E) 38; 17

Answer 6

E) 38; 17

Question 7

The order of decreasing cusp size in the lower 1st molar is: (ONE ANSWER)
A) DB, MD, MB, ML
B) ML, DL, D, MB, DB
C) ML, D, MB, DB, DL
D) MB, ML, DL, D, DB
E) ML, DL, MB, DB, D

Answer 7

E) ML, DL, MB, DB, D

Question 8

Mandibular first molar shows: (ONE ANSWER)
A) 4 cusps on the occlusal surface
B) 6 main fossae
C) 2 discharge fossae
D) 2 roots
E) a buco-lingual groove

Answer 8

D) 2 roots

Question 9

M1 mandibular root characteristics false statements: (MANY ANSWERS)
A) 2 roots
B) Descending order of roots L > MB > DB
C) The 3 roots are strongly divergent
D) Root divergence starts at the distance from the parcel
E) Roots are flattened MD

Answer 9

B) Descending order of roots L > MB > DB

C) The 3 roots are strongly divergent

Question 10

Lower 1st molar: (MANY ANSWERS)
A) Has ML and DB cusps joined by oblique enamel ridge
B) Has completely individualized cusps
C) Erupts at 6 years
D) Has 6 fossae
E) Has ML and MB cusps joined by oblique enamel ridge

Answer 10

B) Has completely individualised cusps
C) Erupts at 6 years

Question 11

Which of the following statements is correct: (ONE ANSWER)
A) The mandibular M1 is flattened mesio-distally
B) M1 mandibular always has a lingual face larger than the buccal face
C) M1 mandibular has additional lobes
D) Mandibular M1 is flattened buco-lingually
E) Mandibular M1 shows root morphotypes

Answer 11

D) Mandibular M1 is flattened buco-lingually

Question 12

Which cusp on a maxillary first molar has two internal ridges: one that forms part of a
transverse ridge and the other that forms part of an oblique ridge? (ONE ANSWER)
A) Mesiobuccal
B) Mesiolingual
C) Distobuccal
D) Distolingual
E) Cusp of Carabelli

Answer 12

B) Mesiolingual

Question 13

Which cusp is the largest on a maxillary second molar? (ONE ANSWER)
A) Mesiobuccal
B) Mesiolingual
C) Distobuccal
D) Distolingual
E) Cusp of Carabelli

Answer 13

B) Mesiolingual

Question 14

Which cusp is most likely to be absent on a maxillary second molar? (ONE ANSWER)
A) Mesiobuccal
B) Mesiolingual
C) Distobuccal
D) Distolingual
E) Distal

Answer 14

D) Distolingual

Question 15

Which two cusps have the ridges that make up or join to form the oblique ridge on a
maxillary second molar? (MANY ANSWERS)
A) Mesiobuccal
B) Distobuccal
C) Mesiolingual
D) Distolingual
E) Cusp of Carabelli

Answer 15

B) Distobuccal,
C) Mesiolingual
Explanation: The oblique ridge is formed by the ridges on the distobuccal and mesiolingual cusps.

Question 16

Maxillary second molars are most likely to have_____ roots and _______ root canals? (ONE
ANSWER)
A) Two, two
B) Two, three
C) Two, four
D) Three, three
E) Three, four

Answer 16

D) Three, three

Question 17

The maxillary second molar erupts: (ONE ANSWER)
A) 12 years
B) 11 years
C) 13 years
D) 14 years
E) 10 years

Answer 17

A) 12 years

Question 18

Buccal aspect of maxillary second molar enroll in a: (ONE ANSWER)
A) Cube
B) Trapeze
C) Triangle
D) Circle
E) Sphere

Answer 18

B) Trapeze

Question 19

How many grooves occur on occlusal aspect of maxillary second molar? (ONE ANSWER)
A) 2
B) 3
C) 4
D) 5
E) 1

Answer 19

B) 3

Question 20

Upper 3rd molar which statement is false: (ONE ANSWER)
A) May have a waved occlusal surface
B) May be physiologically involuted
C) Has a first maxillary molar morphotype
D) Has the largest volume of the maxillary molars
E) Has upper second molar morphotype

Answer 20

D) Has the largest Volume of the maxillary molars

Question 21

The occlusal face of the upper PM 1 shows:
A) 2 lobes, 1 right interlobar groove, 3 fossae, 2 marginal ridges
B) 2 lobes, 1 interlobar groove, 2 fossae, 1 marginal ridge
C) 2 lobes, 1 straight interlobar groove, 2 ditches, 2 marginal ridges
D) 2 lobes, 1 straight interlobar groove, 1 essential ridge
E) 2 lobes, 2 ditches, 2 grooves, 2 marginal ridges

Answer 21

C) 2 Lobes, 1 straight inter lobar groove, 2 ditches, 2 marginal ridges

Question 22

The formula of temporary teeth includes:
A) IC IL C PM1 M2
B) IC C PM M1 M2
C) IC IL C PM1 PM2
D) IC IL C M1 M2
E) IC C PM1 M1 M2

Answer 22

D) IC IL C M1 M2

The correct formula for temporary teeth includes Incisors (IC), Lateral Incisors (IL), Canines (C), and
Molars (M1, M2).

Question 23

After wear, the incisal edge of the upper canine becomes a shaped surface:
A) Square
B) Triangle
C) Rhombus
D) Crescent
E) Trapezoid

Answer 23

C) Rhombus

Question 24

The upper canine erupts around the age of:
A) 6 years
B) 7 years
C) 8 years
D) 9 years
E) 12 years

Answer 24

E) 12 years

Question 25

Upper PM’s roots:
A) It has proximity to the maxillary sinus
B) Are covered with enamel
C) Have a wide pulp chamber inside
D) Have the mandibular canal nearby
E) Have adjacent mental foramen

Answer 25

A) it has a proximity to the maxillary sinus

Question 26

Which of the following notations correspond to the right maxillary canine:
A) 1.3
B) 2.3
C) 3+
D) 7
E) 3.3

Answer 26

A) 2.3

Question 27

The descending order of the maxillary cusps:
A) ML> MB> DB> DL
B) ML> MB> DL> DB
C) ML> ML> DB> DL
D) ML> DB> MB> DL
E) DL> DB> MB> ML

Answer 27

A) ML> MB> DB> DL

Question 28

Maxillary anterior teeth are most likely to have how many canals?
A) One
B) Two
C) Three
D) One or two
E) Three

Answer 28

A) one

Question 29

The premolar most likely to have two roots (and two root canals) is the:
A) Maxillary first premolar
B) Maxillary second premolar
C) Mandibular first premolar
D) Mandibular second premolar
E) Maxillary and mandibular premolars

Answer 29

A) Maxillary first premolar

Question 30

Which cusp is the largest?
A) Mesiobuccal
B) Distobuccal
C) Mesiolingual
D) Distolingual
E) Distal

Answer 30

C) Mesiolingual

Question 31

Which cusp may be absent on a mandibular second molar?
A) Mesiobuccal
B) Distobuccal
C) Mesiolingual
D) Distolingual
E) Dista

Answer 31

D) Distolingual

Question 32

BOLK’s Tuberculum:
A) Determines the inversion of the ratio between the lingual and distal face
B) Determines the inversion of the ratio between the buccal and lingual face
C) Does not produce any ratio changes
D) Causes reversal of the relationship between the mesial and distal face
E) Causes reversal of mesial to vestibular face ratio

Answer 32

B) Determines the inversion of the ratio between the buccal and lingual face

Question 33

The most frequent eruption complications occur in:
A) Premolars
B) Lower first molars
C) Upper third molars
D) Lower third molars
E) Second lower molars

Answer 33

D) Lower third molars

Question 34

The order of decreasing cusp size in the lower first molar is:
A) DB, MD, MB, ML
B) ML, DL, D, MB, DB
C) ML, D, MB, DB, DL
D) MB, ML, DL, D, DB
E) ML, DL, MB, DB, D

Answer 34

E) ML, DL, MB, DB, D

Question 35

Lower second molar shows:
A) 3 roots separated at a distance from the cervical outline
B) 4 fossae and a “cross” groove
C) 3 separate roots near the cervical outline
D) 4 separate roots at a distance from the cervical outline
E) 5 lobes and a “cross” groove

Answer 35

B) 4 fossa and a cross groove

Question 36

Mandibular first molar shows:
A) 4 cusps on the occlusal surface
B) 6 main fossae
C) 2 discharge fossae
D) 2 roots
E) A bucco-lingual groove

Answer 36

D) 2 roots

Question 37

The second mandibular molar:
A) Participates in the first occlusal raising
B) Participates in the second occlusal raising
C) Erupts at 11 years
D) Has 4 lobes on the buccal surface
E) Participates in the third occlusal raising

Answer 37

B) participates in the second occlusal raising

Question 38

Which of the following statements is correct:
A) The mandibular M1 is flattened mesio-distally
B) M1 mandibular always has a lingual face larger than the buccal
C) M1 mandibular has additional lobes
D) Mandibular M1 is flattened bucco-lingually
E) Mandibular M1 shows root morphotypes

Answer 38

E) mandibular M1 shows root morphotypes

Question 39

The furcations are most likely to be farthest away from the cervical portion of the tooth in
which ONE of the following teeth?
A) Mandibular first molar
B) Mandibular second molar
C) Mandibular third molar
D) Maxillary first molar
E) Maxillary second molar

Answer 39

C) Mandibular third molar

Question 40

The maxillary second molar erupts:
A) 12 years
B) 11 years
C) 13 years
D) 14 years
E) 10 years

Answer 40

A) 12 years