Fourth canal is present in_____________?
Correct answer: C. Both of the above
- A. Mesiobuccal roots of maxillary first molar
- B. Distal root of mandibular first molar
- C. Both of the above
- D. None of the above
Explanation
A fourth canal may be the second mesiobuccal canal in a maxillary first molar or an additional canal in the distal root of a mandibular first molar. Therefore, both listed roots can contribute to a four-canal molar.
Last updated
Practise Tooth Morphology
120 free Tooth Morphology MCQs from Oral Anatomy, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Oral Anatomy questions like this
Oral Anatomy is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
A distinguishing characteristic of a maxillary first premolar that identifies it as right or left is the________________?
A maxillary right canine may be distinguished from a maxillary left canine because ____________?
A pronounced developmental groove is usually present on the mesial marginal ridge of a permanent________________?
All embrasure spaces are reflection of the______________?
Among the difference between teeth in the decidous and the permanent dentition is that_____________?