Free Tooth Morphology MCQs with Answers
120 Tooth Morphology MCQs from Oral Anatomy, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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120 questions · page 3 of 6
- A. Maxillary 2nd premolar
- B. Maxillary canine
- C. Mandibular canine
- D. Maxillary 1st premolar
Explanation: In the maxillary first premolar, the mesial slope of the buccal cusp is longer than the distal slope, producing an asymmetrical buccal…
Correct answer: Maxillary 1st premolar- A. 3
- B. 4
- C. 5
- D. 6
Explanation: The three-cusp mandibular second premolar develops from five developmental lobes: three form the buccal cusp area and two form the lingual…
Correct answer: 5- A. Enamel pits
- B. Tubercles
- C. Mamelons
- D. Cingulum
Explanation: Mamelons are rounded enamel projections on the incisal edge of newly erupted permanent incisors, representing the developmental lobes.
Correct answer: Mamelons- A. 4
- B. 3
- C. 5
- D. 6
Explanation: The mandibular first molar normally has five cusps: mesiobuccal, distobuccal, distal, mesiolingual, and distolingual.
Correct answer: 5- A. Permanent canine
- B. First premolar
- C. Permanent incisor
- D. Decidous incisor
Explanation: The maxillary canine has the longest root and is generally regarded as the longest tooth in the maxillary arch.
Correct answer: Permanent canine- A. The buccal and lingual cusps are more prominent
- B. The lingual surface rounded and less developed
- C. The lingual cusp is sharper and longer
- D. The buccal surface is rounded and less developed
Explanation: Mandibular premolars generally have a less developed, more rounded lingual surface than maxillary premolars.
Correct answer: The lingual surface rounded and less developed- A. Mandibular second molars
- B. Maxillary first molars
- C. Mandibular first premolars
- D. Maxillary canines
Explanation: A mesiolingual developmental groove is a characteristic feature of the mandibular first premolar, extending from the mesial marginal…
Correct answer: Mandibular first premolars- A. Flattened root
- B. Sharper proximal incisal angles
- C. Thinner incisal ridge
- D. More pronounced lingual fossa
Explanation: The maxillary lateral incisor usually has a deeper and more distinct lingual fossa than a mandibular lateral incisor.
Correct answer: More pronounced lingual fossa- A. 6
- B. 12
- C. 24
- D. 32
Explanation: A cingulum occurs on the lingual cervical third of each anterior tooth.
Correct answer: 1250. A maxillary right canine may be distinguished from a maxillary left canine because ____________?
- A. The root curves to mesial in the apical 1/3rd
- B. The distal half of canine shows more convexity than the mesical half
- C. Facially the cusp tip is placed distal to Bisecting line
- D. Lingually the cervical line slopes mesiallyOral & Dental Care
Explanation: In a maxillary canine, the distal outline is generally more convex than the mesial outline, helping identify the side of the tooth.
Correct answer: The distal half of canine shows more convexity than the mesical half- A. 2
- B. 3
- C. 4
- D. 5
Explanation: A maxillary second molar normally has three roots: mesiobuccal, distobuccal, and palatal.
Correct answer: 3- A. Maxillary central incisor
- B. Mandibular 1st premolar
- C. Mandibular central incisor
- D. Maxillary lateral incisor
Explanation: The maxillary lateral incisor is the most commonly atypical permanent anterior tooth, showing wide variation in size, shape, and…
Correct answer: Maxillary lateral incisor- A. Distal
- B. Mesial
- C. Facial
- D. Palatal
Explanation: When curved, the root of the maxillary lateral incisor most commonly curves distally near its apical third.
Correct answer: Distal- A. Mesio- buccal
- B. Disto - buccal
- C. Lingual
- D. All are of equal length
Explanation: The distobuccal root of the maxillary first molar is usually the shortest, while the palatal root is generally the longest.
Correct answer: Disto - buccal- A. Height of the lingual cusp
- B. Flattened area beneath the contact on the distal surface
- C. Mesial inclination of the lingual cusp
- D. Greater length of the mesial cusp ridge on the lingual cusp ( AIPG- 98)
Explanation: The lingual cusp of the maxillary first premolar is characteristically inclined or positioned mesially, allowing the mesial side to be…
Correct answer: Mesial inclination of the lingual cusp- A. Facial
- B. Lingual
- C. Distal
- D. Mesial
Explanation: When the palatal root of a maxillary first molar curves, its common direction is facial or buccal, particularly near the apical third.
Correct answer: Facial- A. Maxillary first
- B. Mandibular first
- C. Maxillary second
- D. Mandibular second
Explanation: The mandibular first premolar is generally the smallest of the four permanent premolars.
Correct answer: Mandibular first- A. Maxillary first molar only
- B. Mandibular first molar only
- C. Maxillary and mandibular first molar
- D. Maxillary and Mandibular second molar
Explanation: The mandibular first molar has five major cusps, while the maxillary first molar has four major cusps and may have an additional cusp of…
Correct answer: Maxillary and mandibular first molar- A. Maxillary 1stpremolar
- B. Mandibular 2ndpremolar
- C. Mandibular 1st premolar
- D. Maxillary 1st molar
Explanation: The maxillary first molar is an exception in which the mesiodistal width on the lingual aspect may exceed that on the facial aspect.
Correct answer: Maxillary 1st molar- A. Central incisor
- B. Canine
- C. Lateral incisor
- D. Second premolar (AIPG - 97, Man-95)
Explanation: The mandibular canine commonly has greater crown bulk distal to the faciolingual bisecting plane because its cusp tip is positioned…
Correct answer: Canine