Histology is the science and study of tissues. Histo means a tissue, while Logy means science. By studying oral histology and embryology, you will gain a strong foundation in oral biology. The topic you study will focus on the development and structure of cells and tissues, the stages of tooth development and maturation. Different parts of a tissue, like cells, intercellular substance, tissue fluids, and the different parts of a human tooth, like enamel, dentin, dental pulp. Academic Task provides Oral Histology MCQs with answers. All these teeth histology MCQs are chosen from trusted and best reference books on oral histology. These histology MCQs are also helpful for the preparation of interviews, entrance examinations, other competitive examinations, and certifications for all Experienced, Freshers and Students. Also, check MCQs on Oral Pathology here.

211. Which of the following statement is correct?

A. Enamel cannot form in absence of dentin
B. The formation of enamel and dentin are independent of each other
C. Enamel formation can occur in absence of dentin
D. None of the above

212. The microhardness of dentin is about____________?

A. 1/2 that of enamel
B. 1/7 that of enamel
C. 1/4 that of enamel
D. 1/5 that of enamel

213. Dentinogenesis by odontoblasts first begins at_____________?

A. Pulpal end
B. Cusp tip
C. Tooth bud stage
D. Cervical area

214. The zone of dentin most recently formed and uncalcified is known as____________?

A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Secondary dentin

215. The dentin receptors are unique because_____________?

A. They elicit pain to hot and cold
B. They elicit pain to touch and pressure
C. They elicit pain to chemicals
D. Elicit only pain as a response

216. Mirgration of odontoblasts into dentinal tubules occurs during ________________?

A. Cavity preparation
B. Dehydration
C. Water irrigation
D. None of the above

217. 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

218. Accentuated incremental lines in dentin due to disturbances in matrix and mineralization process is_____________?

A. Incremental lines of retzius
B. Incremental lines of vonebner
C. Contour lines of owen
D. None of the above

219. Formula of hydroxyapatite crystal is____________?

A. Ca3 (Po4)2 CaCo3
B. 3Ca (Po4)2 Ca(OH)2
C. CaPo4 Ca(OH)2
D. None of the above

220. Physically and chemically, the dentin is closely related to______________?

A. Bone
B. Acellular cementum
C. Enamel
D. None of the above

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