NHRA Dentist Exam Practice Questions - NHRA Licensure Examination - Dentist (CBT Via Prometric) Exam

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During root canal treatment of a maxillary first molar, which canal is most frequently missed and should be specifically searched for in the mesiobuccal root?

Second distobuccal canal MB2 (second mesiobuccal) canal Second palatal canal Fourth distal canal

Correct Answer:

MB2 (second mesiobuccal) canal

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