Points to Remember
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Points to Remember

Permanent Dentition

Oral Anatomy

[Wheeler's 8th ed 192/ 9th ed 127]

Longest tooth in oral cavity

  • Maxillary canine (10+17mm)
  • Mandibular canine (11+16mm)

Longest crown in maxillary arch

Central incisor (10.5mm)

Longest crown in mandibular arch or longest crown in oral cavity

Mandibular canine (11mm)

Maximum root length in maxillary arch/longest root in oral cavity

Maxillary canine (17mm)

Maximum root length in mandibular arch

Mandibular canine (16mm)

Shortest tooth of the dentition or shortest tooth in maxillary arch

Maxillary second molar (6.5+ 11mm)

Shortest tooth in mandibular arch

Second molar (7+13)

Shortest crown in the dentition or shortest crown in maxillary arch

Maxillary second molar (6.5mm)

Shortest crown in mandibular arch

Second molar (7mm)

Shortest root in maxillary arch or shortest root in oral cavity

Maxillary second molar (11mm)

Shortest root in mandibular arch

Central incisor (12.5mm)

Largest mesiodistal diameter of crown in anteriors

Maxillary central incisor

Largest mesiodistal diameter of crown in oral cavity

Mandibular 1st molar

Largest labiolingual diameter or crown in anteriors

Maxillary canine

Largest buccolingual diameter of crown in oral cavity

Maxillary 1st molar

Posterior tooth with longest root

Palatal root of maxillary 1st molar

Largest mesiodistal diameter in primary dentition

Mandibular 2nd molar

Largest buccolingual diameter in primary dentition

Maxillary 2nd molar (AP- 2013)

 
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