A. Pulp only
B. Pulp & Dentin
C. Pulp & Periodontal ligament
D. All of the above
✅ The correct answer is option B. Pulp & Dentin.
Oral Histology
292. Extracted teeth should be preserved in_____________?
A. Saline
B. Xylene
C. 10% Formalin
D. 10% alcohol
✅ The correct answer is option C. 10% Formalin.
293. Size of pulp chamber____________?
A. Increases with age
B. Decreases with age
C. Increased in some cases and decreases in some cases
D. None of the above
✅ The correct answer is option B. Decreases with age.
294. Cells occurring in greatest number in pulp are______________?
A. Cementoblasts
B. Fibroblasts
C. Osteoblasts
D. Ameloblasts
✅ The correct answer is option B. Fibroblasts.
295. Neonatal lines are seen in_______________?
A. Enamel of deciduous incisiors
B. Enamel of permanent incisors
C. Enamel of premolars
D. Dentin of all teeth, as if is formed first
✅ The correct answer is option A. Enamel of deciduous incisiors.
296. At the cemento enamel junction, which of the following occurs_____________?
A. Cementum meets enamel
B. Cementum overlaps enamel
C. Cementum does not meet enamel
D. All of the above
✅ The correct answer is option D. All of the above.
297. Regarding teeth which statement is wrong ?
A. Enamel is harder than dentine
B. Enamel has no cells
C. Ameloblast secrete enamel and dentine
D. Odontoblast produce dentin
✅ The correct answer is option C. Ameloblast secrete enamel and dentine.
298. The normal pH of the saliva is about_____________?
A. 5.5
B. 9.5
C. 7.5
D. 8.5
✅ The correct answer is option C. 7.5.
299. Which type of collagen fibers demonstrates Chicken wire configuration ?
A. Type I
B. Type II
C. Type III
D. Type IV
✅ The correct answer is option D. Type IV.
300. The marrow found in the mandible is____________?
A. All fatty marrow
B. All red marrow
C. All fibrous marrow
D. A combination of fatty and fibrous marrow
✅ The correct answer is option D. A combination of fatty and fibrous marrow.