Medical MCQs

5099 MCQs  (Page 252 of 510)

Inorganic content of cementum is______________?
A. 45 to 50%
B. 50 to 55%
C. 55 to 60%
D. 60 to 65%
Intermediate cementum is____________?
A. Highly defined cellular zone near cemento – dentinal junction (cdj)
B. Highly defined fibrillar zone near cdj
C. Poorly defined zone near cemento-dentinal junction
D. Both a and b
Which of the following is true of cellular cementum ?
A. Forms during root formation
B. Forms after the eruption of the tooth
C. Seen at the coronal portion of the tooth
D. Formation is a slow process
Hardness of fully mineralized cementum is_____________?
A. Less than dentin
B. More than dentin
C. Equal dentin
D. None of the above
If cementum is not formed______________?
A. Ankylosis may occur
B. Exforliation of teeth occur
C. Delayed eruption
D. No change occurs
Chronic periapical inflammation is usually associated with____________?
A. Ankylosis
B. Resorption of cementum
C. Hypertrophy of cementum
D. Hyperplasia of cementum
Which of the following is correct?
A. Cementum is more resistant to resorption than bone
B. Bone is more resistant to resorption than cementum
C. Both are equally resorbable
D. None of the above
Intermediate cementum is___________?
A. Between enamel and cementum
B. Found at dentinocemental junction
C. Apical third
D. Coronal third
Reestablishing the former outline of the root surface is_____________?
A. Anatomic repair
B. Functional repair
C. Physiological repair
D. Hyperplasia