Among the difference between teeth in the decidous and the permanent dentition is that_____________?
Correct answer: B. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengthsBook Dental Checkups
- A. Buccal surfaces of the permanent molars are flatter
- B. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengthsBook Dental Checkups
- C. Root trunks of decidous teeth are larger compared with their overall root lengths
- D. Cervical ridges are more pronounced in permanent molars
Explanation
Primary incisor crowns are characteristically wider mesiodistally than they are cervicoincisally, giving them a broad, squat appearance. Primary molar root trunks are shorter, not larger relative to the roots, and their cervical ridges are more pronounced than those of permanent molars.
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
Mesiodistal width is more than cervico- incisal length of crown in_____________?
The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is____________?
Transverse ridge is prominent on occlusal surface of which of the following decidous teeth ?
Primary teeth differ from permanent teeth in following aspects ?