Dental Narrowing of periodontal ligament in labially placed mandibular canine with age is due to: 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 Narrowing of periodontal ligament in labially placed mandibular canine with age is due to: ✓ Correct Answer: A. Due to deposition of cementum and bone