391. A suitable fixative for a routine biopsy specimen is_____________?
A. 10% formalin
B. 40% formalin
C. 20% formalin
D. 10% alcohol
392. Epithelial attachment is derived from____________?
A. Reduced enamel epithelium
B. Dental papilla
C. Inner enamel epithelium
D. Dental sac
393. Tooth buds of permanent mandibular incisors are situated_____________?
A. Lingual to primary teeth
B. Inferior to primary teeth
C. Labial to primary teeth
D. A and B
394. Gubernacular canal guides the eruption of_____________?
A. Primary teeth
B. Permanent teeth
C. Both A and B
D. None of the above
395. Resorption of dental tissue is caused by_____________?
A. Osteoclasts
B. Osteoblasts
C. Odontoclasts
D. Odontoblasts
396. Accentuated incremental lines in dentin are______________?
A. Incremental lines of retzius
B. Incremental lines of von Ebner
C. Contour lines lines of owen
D. None of the above
397. Gubernacular canal and gubernacular cord are seen in relation to____________?
A. Permanent teeth
B. Deciduous teeth
C. Succedaneous teeth
D. None of the above
398. The cells, which are responsible for removal of bone matrix in bone resorption, are_____________?
A. Osteoblast
B. Fibrocytes
C. Polymorphs
D. Osteoclasts
399. Frozen sections can be used for the demonstration of_____________?
A. Fat
B. Mucin
C. Cartilage
D. Iron
400. Dehydration of specimen is carried out by____________?
A. By using 10% formalin
B. By using liquid or solid Co2
C. By using increasing percentages of alcohol
D. By using 5% nitric acid
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