Medical MCQs

5099 MCQs  (Page 247 of 510)

Periodontal ligament has predominantly_________?
A. Type ii collagen fibres
B. Oxytalan fibres
C. Elastic fibres
D. Type i collagen fibres
Sharpey’s fibres are derived from_____________?
A. Hertwig’s root sheath
B. Epithelial rests of malassez
C. Alveolar bone
D. Dental follicle
Periodontal ligament is made up of____________?
A. Type i collagen
B. Type i and type iii collagen
C. Type i and type ii collagen
D. Type i and type iv collagen
Width of the periodontal ligament is least at______________?
A. Cervical third
B. Apical third
C. Fulcrum of rotation
D. It has uniform width
Development of supporting tissues of the tooth is initiated by____________?
A. Cells of dental follicle
B. Cells of odontogenic layer
C. Cementoblasts
D. Cells of the gingiva
The periodontal ligament is approximately_____________?
A. 0.25 mm in thickness
B. 0.5 mm in thickness
C. 0.75 mm in thickness
D. Mm in thickness
Width of PDL is_______________?
A. 0.10 mm
B. 0.50 mm
C. 0.25 mm
D. 0.75 mm