Narrowing of periodontal ligament in labially placed mandibular canine with age is due to_____________?
Correct answer: A. Due to deposition of cementum and bone
- A. Due to deposition of cementum and bone
- B. Down growths of gingival epithelium
- C. Gingival cysts formed from cell rests
- D. Reversal of function of horizontal and oblique fibres
Explanation
Age-related narrowing of the PDL in a labially positioned mandibular canine results mainly from continued deposition of cementum on the root and bone on the socket wall. The other choices describe epithelial or fibre changes that do not directly narrow the ligament space.
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82 free Cementum and Periodontium MCQs from Oral Histology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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