A. Incineration/organic chelation
B. Decalcification
C. Devitrification
D. Combustion
✅ The correct answer is option A. Incineration/organic chelation.
Oral Histology
The average diameter of coronal dentinal tubules near the pulp is____________?
A. 0.2-0.5 microns
B. 2-3 microns
C. 0.2-0.3 microns
D. 7 microns
✅ The correct answer is option B. 2-3 microns.
The type of bone present in the labial area of anterior teeth is_________________?
A. Cortical
B. Cancellous
C. Osteophytic
D. Exophytic
✅ The correct answer is option A. Cortical.
If a child’s teeth do not form, this would primarily effect the growth of the_____________?
A. Basal bone
B. Whole face
C. Mandible
D. Alveolar bone
✅ The correct answer is option D. Alveolar bone.
Blood supply of ameloblast for most of its life cycle comes form_______________?
A. Dental papilla
B. Reduced enamel organ
C. Dental Sac
D. Dental pulp
✅ The correct answer is option C. Dental Sac.
The condyle of mandible is composed of____________________?
A. Compact bone
B. Cancellous bone
C. Cancellous bone covered by thin layer of compact bone
D. Compact bone covered by cancellous bone
✅ The correct answer is option C. Cancellous bone covered by thin layer of compact bone.
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 correct answer is option A. Increased ribonucleic acid.
Cells of the spinous layer are generally_______________?
A. Larger than the basal cells
B. Smaller than the basal cells
C. same size as that of basal cells
D. None of the above
✅ The correct answer is option A. Larger than the basal cells.
The tooth present close to maxillary sinus is_________________?
A. 1st molar
B. 2nd premolar
C. 1st premolar
D. 2nd molar
✅ The correct answer is option A. 1st molar.
The size of apical foramen of maxillary teeth in adult is______________?
A. 0.4 mm
B. 0.3 mm
C. 0.2 mm
D. 0.7 mm
✅ The correct answer is option A. 0.4 mm.