Medical MCQs

5099 MCQs  (Page 250 of 510)

Trauma or excessive occlusal forces causes_____________?
A. Hyperplasia of cementum
B. Hypertrophy of cementum
C. Resorption of cementum
D. None of the above
Root lengthening is contributed by____________?
A. Cellular cementum
B. Acellular cementum
C. Intermediate cementum
D. All of the above
Which of the following is least mineralized ?
A. Cementoid
B. Incremental line
C. Cellular cementum
D. Acellular cementum
The periodontal ligament_____________?
A. Derives its blood supply primarily from the branches of vessels entering the pulp
B. Has a slow rate of turn over
C. Contains epithelial cells
D. Comprises primarily of type ii collagen
Anchoring fibrills are composed of_____________?
A. Type v and vii collagen
B. Type i and iii collagen
C. Type iv collagen
D. Type iv and iii collagen
Remnants of the Hertwig’s root sheath are found in____________?
A. Gingiva
B. Alveolar bone
C. Periodontal ligament
D. Cementum
All of the following cells of periodontal ligament are of mesenchymal origin except______________?
A. Fibroblasts
B. Multi totipotent cells
C. Cementoblasts
D. Cell rests of malassez