Question: Sclerotic dentin has following features_____________?

• 1. Caries susceptible
• 2. Insensitive
• 3. Hypersensitive
• 4. Resistant to caries

Question: Inter globular dentin results due to_____________?

• 1. Failure of coalescence of calcospherities
• 2. Fracture of the dentin
• 3. Artifact in light microscopy
• 4. Disturbance in dentinal tubules

Question: The main bulk of dentin is formed by______________?

• 1. Peritubular dentin
• 2. Mantle dentin
• 3. Inter tubular dentin
• 4. Predentin

Question: Tome’s firbres are____________?

• 1. With out but not with in the dentin
• 2. Odontoblastic processes in dental tubules
• 3. Type of sharpey’s fibres
• 4. Originate from tome’s granular layer

Question: Korffs fibres are seen in______________?

• 1. Mantle dentin
• 2. Secondary dentin
• 3. Reactionary dentin
• 4. Indeed dermal tubules

Question: The type of tertiary dentin which contains cellular inclusions is found in_____________?

• 1. Sclerotic dentin
• 2. Mantle dentin
• 3. Predentin
• 4. Osteodentin

Question: The organic lining of the calcified dentinal tubules is known as_______________?

• 1. Lamina propria
• 2. Lamina lucida
• 3. Lamina limitans
• 4. Lamina densa

Question: The cells that form secondary dentin are_______________?

• 1. Cementoblasts
• 2. Fibroblasts
• 3. Odontoblasts
• 4. Osteoblasts

Question: Which of the areas of the tooth is most sensitive during cavity preparation ?

• 1. Enamel (anterior teeth)
• 2. Enamel (Posterior teeth)
• 3. Dentin
• 4. Dentinoenamel junction

Question: Transmission of stimulus across dentin is______________?

• 1. Direct activation of nerve endings
• 2. Correlated with the innervation density of the dentin
• 3. Stimulus induced fluid flow
• 4. There is no transmission of stimulus across dentin