Detailed Tooth Morphology & Identification

Maxillary molars. The oblique ridge is characteristic of maxillary molars.

Mandibular central incisor. The mandibular central incisor is the smallest tooth.

3. Maxillary molars usually have three roots (2 buccal + 1 palatal).

⭐ High-Yield Facts for Exam

Maxillary canine = longest tooth; mandibular central incisor = smallest; maxillary first molar = largest.
Cusp of Carabelli = mesiopalatal cusp of maxillary first molars.
Oblique ridge (connecting mesiopalatal and distobuccal cusps) is unique to maxillary molars; the transverse ridge and central groove patterns help identification.
Roots: maxillary molars typically 3 roots (2 buccal + 1 palatal); mandibular molars 2 roots (mesial + distal).

Crown outline, cusp number/position, root number/curvature, and contact areas distinguish each tooth.

Longest = maxillary canine; smallest = mandibular central incisor; oblique ridge = maxillary molars.

Q1. The oblique ridge is a feature of:

A. Mandibular molars

B. Maxillary molars

C. Premolars

D. Incisors

Show Answer

✅ Answer: B

The oblique ridge is characteristic of maxillary molars.

Q2. The smallest permanent tooth is the:

A. Maxillary lateral incisor

B. Mandibular central incisor

C. Mandibular canine

D. Maxillary premolar

Show Answer

✅ Answer: B

The mandibular central incisor is the smallest tooth.

Q3. Maxillary molars typically have how many roots?

A. 1

B. 2

C. 3

D. 4

Show Answer

✅ Answer: C

Maxillary molars usually have three roots (2 buccal + 1 palatal).

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