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
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Enamel can act in a sense like a_______________?
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Dark bonds that are present in enamel rods at intervals of 4 μms are______________?
A. Permeable membrane
B. Impermeable membrane
C. Semipermeable membrane
D. Infrapermeable membrane
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The average width of enamel rods is______________?
A. Neonantal bands
B. Cross striations
C. Striae of Retzius
D. Hunter-Schregar bands
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The shallow furrows on the enamel surface, where stria of Retzius end are known as _______________ ?
A. 10mm
B. 5mm
C. 2mm
D. 0.5mm
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The key hole, pattern appearance in the cross section is feature of______________?
A. Cracks
B. Pellicle
C. perikymata
D. Enamel lamellae
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The class of low molecular weight calcium binding proteins seen predominantly in developing enamel are_____________?
A. Aprismatic enamel
B. Prismatic enamel
C. Intertubular dentin
D. Intratubular dentin
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Metalloprotienases are used in which stage of the amelogenesis_____________?
A. Enamelin
B. Amelogenin
C. Tuftelin
D. Ameloplakin
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Nutritional supply of the ameloblasts during most of their life cycle is from the_____________?
A. Organising
B. Formative/ Secretory
C. Protective
D. Desmolytic
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Neonatal line is also referred to as______________?
A. Dental pulp
B. Odontoblastic processes
C. Dental sac
D. Reduced dental organ
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