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Tooth Morphology

Oral Anatomy, Histology & Embryology • NEET MDS Study Guide • AI-Generated Notes

⭐ High-Yield Facts for Exam

  • Cusp of Carabelli = maxillary first molar.
  • Longest tooth = maxillary canine.
  • Smallest tooth = mandibular central incisor.
  • Mesiodens = most common supernumerary.
  • Oblique ridge = maxillary molars.

Tooth Morphology

High-Yield Facts

  • Cusp of Carabelli — accessory cusp on the mesiopalatal surface of maxillary first molars.
  • The maxillary canine is the longest tooth; the mandibular central incisor is the smallest.
  • The maxillary first molar is generally the largest tooth; its largest cusp is the mesiopalatal.
  • Mesiodens — most common supernumerary tooth (midline maxilla).
  • Oblique ridge is characteristic of maxillary molars.

Use

Morphology underpins identification, restoration contour, and occlusion.

Exam Tips ⭐

Carabelli = maxillary 1st molar; longest tooth = maxillary canine; smallest = mandibular central incisor; mesiodens = commonest supernumerary.

📝 Practice MCQs — Tooth Morphology

Q1. The cusp of Carabelli is found on the:
A. Mandibular first molar
B. Maxillary first molar
C. Maxillary canine
D. Mandibular premolar
Show Answer
✅ Answer: B
It is on the mesiopalatal aspect of maxillary first molars.
Q2. The longest tooth in the permanent dentition is the:
A. Maxillary central incisor
B. Maxillary canine
C. Mandibular first molar
D. Maxillary first molar
Show Answer
✅ Answer: B
The maxillary canine is the longest tooth.
Q3. The most common supernumerary tooth is the:
A. Distomolar
B. Mesiodens
C. Paramolar
D. Peg lateral
Show Answer
✅ Answer: B
The mesiodens (midline maxilla) is the most common supernumerary.
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Related Topics

Detailed Tooth Morphology & IdentificationAmelogenesis & DentinogenesisPulp Chamber & Root Canal Anatomy