The permanent mandibular second molar differs from the permanent mandibular first molar in number of ______________?
Correct answer: A. Cusps
- A. Cusps
- B. Roots
- C. Lingual grooves
- D. Marginal ridges
Explanation
The mandibular first molar usually has five cusps, whereas the mandibular second molar has four cusps arranged in a more symmetrical pattern. Both normally have two roots, so cusps provide the distinguishing difference here.
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
The largest embrasure in posterior teeth is the__________?
Divergence from contact area in proximal surfaces causes embrasures____________?
The widest incisal embrasure is normally found between which of the following permanent maxillary teeth _____________?
Generally , contact areas between posterior teeth are located in which directions from the centr of the proximal surface ____________?
The contact area on the distal side of a maxillary first premolar is located _____________?