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Endodontics · single question

Which tooth has the HIGHEST likelihood of presenting accessory canals?

  1. Maxillary central incisor
  2. Mandibular first molar
  3. Mandibular canine
  4. Maxillary first molar (#14)
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Correct answer: D. Maxillary first molar (#14)

Maxillary first molar #14/3 has highest accessory canal incidence — MB2 canal present in 50-95% of cases, plus furcation accessory canals and lateral canals. Thorough debridement critical.

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