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.Management Sciences
Category: Oral Histology
Sclerotic dentin has following features_____________?
A. Caries susceptible
B. Insensitive
C. Hypersensitive
D. Resistant to caries
In mammals independent and tough suspension for teeth is provided by____________?
A. Alveolar sockets
B. Cementum
C. Gubernacular cords
D. Periodontal membrane
Mirgration of odontoblasts into dentinal tubules occurs during ________________?
A. Cavity preparation
B. Dehydration
C. Water irrigation
D. None of the above
The most accepted theory for dentin sensitivity is: or Which of the following is the most accepted theory of transmission of dental sensation_____________?
A. Transduction theory
B. Direct neural stimulation
C. Hydrodynamic theory
D. Hydrostatic theory
Which of the following is correct?
A. Each rod is formed by 4 ameloblasts
B. Each ameloblast contributes to 4 different rods
C. Head of the rod is formed by one ameloblasts, and tail is formed by three other ameloblasts
D. All of the above
The periodontal ligament_____________?
A. Derives its blood supply primarily from the branches of vessels entering the pulp
B. Has a slow rate of turn over
C. Contains epithelial cells
D. Comprises primarily of type II collagen
Cellular cementum and compact bone contain____________?
A. Sharpehy’s fibres and elastic fibres
B. Collagen fibres and blood vessels
C. Canaliculi and incremental lines
D. Lacunae and elastic fibres
The organic lining of the calcified dentinal tubules is known as_______________?
A. Lamina propria
B. Lamina lucida
C. Lamina limitans
D. Lamina densa
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