Osteoblasts appear basic gram staining due to______________? A. Increased ribonucleic acid B. Acidic ground substance C. Increased mitochondria D. Presence of basic ground substance

The maximum rate of eruption, as the tooth cusps reach the surface epithelium is around ________ μm/day? A. 100B. 75 C. 50 D. 25

Calcified tissue is absent in______________? A. Enamel B. Dentin C. CementumD. Pulp

Which of the following factors are primarily contributory to the shedding of deciduous tooth ? A. Hydrostatic B. Vascular pressure C. Oncotic pressureD. Masticatory pressure

The apical foramen of a fully developed permanent tooth is usually lined by_____________? A. DentinB. Cementum C. Epithelial rest cells D. The Epithelial diaphragm

Specific stain for fat cells is___________? A. Eosin & haematoxylin B. Carbol fuschinC. Sudan III D. Cresyl violet

Extracted teeth should be preserved in_____________? A. Saline B. XyleneC. 10% Formalin D. 10% alcohol

Oral tissue for microscopic examination is prepared by_______________? A. Embedded in paraffin and sectioned B. Embedded in paradion and sectioned C. Frozen and sectioned D. Specimens ground into thin sectionsE. All of the above

Which enzyme is associated with the mineralization_____________? A. Acid phosphataseB. Alkaline phosphatase C. Adenosine triphosphate D. Amino peptidase

Hammock ligament is present_______________? A. Between temporal and sphenoid bone B. Between hamular notch and mandible C. In apical area of a toothD. As a part of deep cervical fascia