Free Tooth Morphology MCQs with Answers

• A. DL and DB
• B. ML and MB
• C. ML and DB
• D. DL and MB

Explanation: The oblique ridge of a maxillary molar is formed by the union of the triangular ridge of the mesiopalatal cusp with the distal ridge of…

• A. Proximally
• B. Lingually
• C. Occlusal
• D. Buccally

Explanation: The maxillary first and second premolars have their greatest resemblance from the buccal aspect, where both show a similar two-cusp…

• A. 32,42
• B. 31,41
• C. 34,44
• D. 13,23

Explanation: The mandibular first premolars may have a bifid or bifurcated root, although this is uncommon.

• A. Permanent first molar
• B. Decidous first molar
• C. Canine
• D. Third molar

Explanation: The permanent mandibular first molar is the largest tooth in the mandibular arch and has a broad five-cusp crown.

• A. Mesial surface
• B. Palatal surface
• C. Mesial half of the palatal surface
• D. Buccal surface

Explanation: The cusp of Carabelli is an accessory elevation on the mesial portion of the palatal surface of a permanent maxillary molar, most commonly…

• A. Maxillary central incisor
• B. Mandibular second premolar
• C. Mandibular lateral incisor
• D. Mandibular central incisor

Explanation: The mandibular central incisor is highly symmetrical, so its mesial and distal surfaces are especially difficult to distinguish.

• A. Mandibular second premolar
• B. Mandibular first premolar
• C. Maxillary first premolar
• D. Maxillary second premolar

Explanation: The mandibular second premolar, especially its three-cusp form, has a central pit where the developmental grooves meet.

• A. Less
• B. More
• C. Same
• D. Different on different teeth

Explanation: The maxillary canine has a more prominent facial contour than the maxillary central incisor because of its strong labial ridge and bulky…

• A. Maxillary central incisor
• B. Mandibular lateral incisor
• C. Maxillary lateral incisor
• D. Mandibular central incisor

Explanation: The mandibular central incisor is the smallest permanent tooth and has a correspondingly small, relatively short root.

• A. Mandibular first premolar
• B. Maxillary first premolar
• C. Maxillary second premolar
• D. Mandibular second premolar

Explanation: The mandibular first premolar is generally the smallest posterior permanent tooth.

• A. Maxillary 1st premolar
• B. Mandibular canine
• C. Maxillary canine
• D. Mandibular 2nd premolar

Explanation: In the mandibular canine, the mesial crown outline is nearly straight and continues almost parallel with the long axis of the root.

• A. Maxillary permanent first molar
• B. Mandibular permanent first molar
• C. Mandibular permanent second molar
• D. Mandibular decidous second molar

Explanation: The mandibular third molar most closely resembles the mandibular second molar in its occlusal pattern, although the third molar is more…

• A. Mandibular 1st premolar
• B. Maxillary 2ndpremolar
• C. Maxillary 1st premolar
• D. Mandibular 2nd premolar

Explanation: The mandibular first premolar has a mesial marginal ridge that slopes cervically and lies lower than the distal marginal ridge.

• A. Mandibular third molar
• B. Maxillary first premolar
• C. Maxillary second molar
• D. Mandibular second premolar

Explanation: A pronounced mesial marginal developmental groove is a classic feature of the maxillary first premolar.

• A. Maxillary canine
• B. Mandibular lateral incisor
• C. Maxillary lateral incisor
• D. Mandibular canine

Explanation: The maxillary lateral incisor shows the greatest common morphological variation, including peg-shaped crowns, congenital absence, and…

• A. Maxillary 1st premolar
• B. Maxillary 2nd premolar
• C. Mandibular 1stmolar
• D. Maxillary 1st molar

Explanation: The maxillary first molar may show more than one occlusal form because the size and development of its cusps, particularly the…

• A. Mesial and distal
• B. Facial and lingual
• C. Mesiobuccal and distobuccal
• D. Mesiolingual and distolingual

Explanation: When a mandibular canine root bifurcates, the two roots are usually positioned facially and lingually.

• A. Maxillary first molar
• B. Maxillary first premolar
• C. Maxillary lateral incisor
• D. All of the above

Explanation: A palatogingival groove is classically associated with the maxillary lateral incisor, usually extending from the palatal pit toward the…

• A. Synonym
• B. Antonym
• C. Laevonomer
• D. Misnomer

Explanation: A contact between adjacent teeth is usually an area rather than a single point, especially after normal wear and functional adaptation.

• A. 2 mm less distally than mesially
• B. 1 mm less lingually than buccally
• C. 2 mm less lingually than buccally
• D. 1 mm less distally than mesially

Explanation: The cervical line curves more incisally or occlusally on the mesial surface than on the distal surface.