DA Chapter 5 Morphology of
Permanent Molars Exam 2025 With
100% Correct Answers
Which grooves radiate out from the central fossa in a Mandibular Second Molar? - CORRECT
ANSWER✔✔- Central grooves
- Lingual grooves
- Buccal grooves
Which cusp is the largest and longest on a Mandibular Second Molar? - CORRECT
ANSWER✔✔Mesiolingual cusp
Which cusp may be absent on a Mandibular First Molar? - CORRECT ANSWER✔✔Distal cusp
When distal cusp is absent, which groove(s) would not be present? - CORRECT ANSWER✔✔-
Mesiobuccal groove
- Distobuccal groove
Which fossae are found on a Mandibular First Molar? - CORRECT ANSWER✔✔- Mesial
Triangular Fossae
- Distal Triangular Fossae
- Central Fossae
Which development groove connects with the lingual groove running in the same direction on a
Mandibular Second Molar? - CORRECT ANSWER✔✔Buccal developmental groove
,From which view is only one root visible on a Mandibular First Molar? - CORRECT
ANSWER✔✔Mesial view
Which root may occasionally be divided or bifurcated on a Mandibular First Molar? - CORRECT
ANSWER✔✔Mesial root
On a five-cusped molar, which cusp does not have a triangular ridge that forms part of a
transverse ridge? - CORRECT ANSWER✔✔Distal cusp
Which ridge form the boundaries of the mesial triangular fossa of a Mandibular molar? -
CORRECT ANSWER✔✔- Triangular ridge of mesiobuccal cusp.
- Triangular ridge of mesiolingual cusp.
- Mesial marginal ridge.
Which two pairs of cusp triangular ridges make up or join to form the transverse ridges on a
Mandibular Second Molar? - CORRECT ANSWER✔✔- Mesiobuccal and mesiolingual.
- Distobuccal and distolingual.
List in sequential order the longest to shortest cusp on the Mandibular First Molar.
Mesiobuccal
Mesiolingual
Distobuccal
Distal
Distolingual - CORRECT ANSWER✔✔Mesiolingual
Distolingual
Mesiobuccal
Distobuccal
Distal
, What are the Universal Numbers of the Permanent Molars? (Maxillary/Mandible)
How many total?
How many per quadrant? - CORRECT ANSWER✔✔Maxillary: 1, 2, 3, 14, 15, 16
Mandible: 17, 18, 19, 30, 31, 32
Total of 12 molars
3 molars per quadrant
What are the functions of the Permanent Molars? - CORRECT ANSWER✔✔(1) Mastication of
food (grinding, chewing)
(2) Maintaining vertical dimension of face (preventing jaws from closing too far)
(3) Maintaining arch continuity for proper alignment
(4) Support Cheeks (esthetics)
How many cusps do the molars have on occlusal surface? - CORRECT ANSWER✔✔Molars have
an occlusal surfaces with three-five cusps.
True or False
Their occlusal surfaces are larger than the other teeth in their respective arches. (even more
broad than premolars faciolingually and mesiodistally. - CORRECT ANSWER✔✔TRUE
True or False
The combined mesiodistal width of three maxillary molars in one quadrant makes up over half
of the mesiodistal dimension of their quadrant. - CORRECT ANSWER✔✔FALSE
The combined mesiodistal width of three mandibular molars in one quadrant makes up over
half of the mesiodistal dimension of their quadrant.
True or False
Permanent Molars Exam 2025 With
100% Correct Answers
Which grooves radiate out from the central fossa in a Mandibular Second Molar? - CORRECT
ANSWER✔✔- Central grooves
- Lingual grooves
- Buccal grooves
Which cusp is the largest and longest on a Mandibular Second Molar? - CORRECT
ANSWER✔✔Mesiolingual cusp
Which cusp may be absent on a Mandibular First Molar? - CORRECT ANSWER✔✔Distal cusp
When distal cusp is absent, which groove(s) would not be present? - CORRECT ANSWER✔✔-
Mesiobuccal groove
- Distobuccal groove
Which fossae are found on a Mandibular First Molar? - CORRECT ANSWER✔✔- Mesial
Triangular Fossae
- Distal Triangular Fossae
- Central Fossae
Which development groove connects with the lingual groove running in the same direction on a
Mandibular Second Molar? - CORRECT ANSWER✔✔Buccal developmental groove
,From which view is only one root visible on a Mandibular First Molar? - CORRECT
ANSWER✔✔Mesial view
Which root may occasionally be divided or bifurcated on a Mandibular First Molar? - CORRECT
ANSWER✔✔Mesial root
On a five-cusped molar, which cusp does not have a triangular ridge that forms part of a
transverse ridge? - CORRECT ANSWER✔✔Distal cusp
Which ridge form the boundaries of the mesial triangular fossa of a Mandibular molar? -
CORRECT ANSWER✔✔- Triangular ridge of mesiobuccal cusp.
- Triangular ridge of mesiolingual cusp.
- Mesial marginal ridge.
Which two pairs of cusp triangular ridges make up or join to form the transverse ridges on a
Mandibular Second Molar? - CORRECT ANSWER✔✔- Mesiobuccal and mesiolingual.
- Distobuccal and distolingual.
List in sequential order the longest to shortest cusp on the Mandibular First Molar.
Mesiobuccal
Mesiolingual
Distobuccal
Distal
Distolingual - CORRECT ANSWER✔✔Mesiolingual
Distolingual
Mesiobuccal
Distobuccal
Distal
, What are the Universal Numbers of the Permanent Molars? (Maxillary/Mandible)
How many total?
How many per quadrant? - CORRECT ANSWER✔✔Maxillary: 1, 2, 3, 14, 15, 16
Mandible: 17, 18, 19, 30, 31, 32
Total of 12 molars
3 molars per quadrant
What are the functions of the Permanent Molars? - CORRECT ANSWER✔✔(1) Mastication of
food (grinding, chewing)
(2) Maintaining vertical dimension of face (preventing jaws from closing too far)
(3) Maintaining arch continuity for proper alignment
(4) Support Cheeks (esthetics)
How many cusps do the molars have on occlusal surface? - CORRECT ANSWER✔✔Molars have
an occlusal surfaces with three-five cusps.
True or False
Their occlusal surfaces are larger than the other teeth in their respective arches. (even more
broad than premolars faciolingually and mesiodistally. - CORRECT ANSWER✔✔TRUE
True or False
The combined mesiodistal width of three maxillary molars in one quadrant makes up over half
of the mesiodistal dimension of their quadrant. - CORRECT ANSWER✔✔FALSE
The combined mesiodistal width of three mandibular molars in one quadrant makes up over
half of the mesiodistal dimension of their quadrant.
True or False
