A. Forebrain
B. Rathke’s pouch
C. Neural crest cells
D. Odontoblasts
Related Mcqs:
- Dental lamina is active up to_______________?
A. 1 year
B. 2 years
C. 3 years
D. 4 years - Cyst arising from dental lamina:___________________?
A. Radicular cyst
B. Paradental cyst
C. Eruption cyst
D. Glandular odontogenic cyst - Basal lamina of blood vessel in CNS is secreted by______________?
A. Endothelial cells
B. Oligodendrocytes
C. Microglia
D. Astrocytes - A histologic evidence of widespread formation of globular hypocalcified dentin and pulp horns reaching the dentinoenamel junction, absence of lamina dura around the tooth in radiograph are the characteristic features of_____________?
A. Vitamin -D resistant rickets
B. Hypophosphatasia
C. Hypervitaminosis-A
D. Vitamin-A deficiency - High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?
A. Have less marginal breakdown
B. Are workable at lower Hg-alloy ratio
C. Have a higher ratio of tensile to compressive strength
D. Have less resistance to tarnish and corrosion - Powders of dental plaster and dental stone differ mainly in____________?
A. Solubility
B. Shelf life
C. Chemical formula
D. Particle porosity - The main difference between dental stone and dental plaster is______________?
A. Chemical composition
B. Self life
C. Sharpe and size of particles
D. Solubility in water - The American dental association (ADA) specification number for non-aqueous elastomeric dental impression material is______________?
A. 19
B. 20
C. 21
D. 26 - Polymerisation of heat-cured methyl methacrylate is initiated by______________?
A. Tertiary amine
B. Benzoyl peroxide free radical
C. Hydroquinone
D. Methyl ether - Chemico-parasitic theory of dental caries is proposed by______________?
A. Miller
B. G.V black
C. Gottlieb
D. Schwartz
