Which tooth has a buccal pit?
dental anatomy, buccal pit, dental hygiene exam prep

Which tooth has a buccal pit?

(A.) Mandibular first molar
(B.) Maxillary first molar
(C.) Mandibular second molar
(D.) Maxillary second molar

dental anatomy, buccal pit, dental hygiene exam prep
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Answer: (A.) Mandibular first molar

Here are some characteristics of the mandibular first molar:

  • Has 2 roots
  • Has 5 cusps (3 facial, 2 lingual)
  • Is generally the first tooth to erupt in the permanent dentition
  • A buccal pit (depression on the buccal aspect of the tooth) is present

The buccal pit can facilitate biofilm retention which promotes caries, and for this reason it is often sealed or treated.
All other teeth do not have buccal pits.
One characteristic of the maxillary first molar is the presence of the cusp of Carabelli.

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Written by
Claire Jeong, RDH, MS
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