The premolar with the occlusal groove pattern that may simulate the letter "Y" is________________?
Correct answer: B. Mandibular second
- A. Maxillary first
- B. Mandibular second
- C. Maxillary second
- D. Mandibular first
Explanation
The three-cusp type of mandibular second premolar commonly has a Y-shaped occlusal groove pattern, formed by grooves radiating between the buccal and two lingual cusps. The mandibular first premolar more typically has a mesiolingual developmental groove rather than a true Y pattern.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Tooth Morphology
120 free Tooth Morphology MCQs from Oral Anatomy, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
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.
More Tooth Morphology questions
In which of the following a nonfunctional cusp is present________________?
The two major fossa of permanent maxillary first molar________________?
Permanent mandibular first molar is developed from ______ lobes?
In the triangle formed by the projection of the orifices of the canals of a maxillary molar, the_________________?
Which cusp is poorly developed in a permanent maxillary second molar_____________?
Tritubercular cusps are_______________?