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.Management Sciences
Category: Oral Histology
When osteoblast lay new bone from outside to inside in a osteon, the active formation area is called________________?
A. Haversion cone
B. Filling cone
C. Cutting cone
D. Howships cone
Dentinogenesis by odontoblasts first begins at_____________?
A. Pulpal end
B. Cusp tip
C. Tooth bud stage
D. Cervical area
The glands of Blandin and Nuhn are_____________?
A. The posterior lingual glands
B. The anterior lingual glands located near the apex of tongue
C. The glossopalatine glands
D. The palatine glands
Organ of chievity is seen near the______________?
A. Medial surface of the mandible
B. Naso palatine foramen
C. Mental foramen
D. Foramen caecum
The type of bone present in the labial area of anterior teeth is_______________?
A. Cortical
B. Cancellous
C. Osteophytics
D. Exophytic
The odontoblasts killed during cavity preparation are derived from_____________?
A. Unaffected odontoblasts from the pulp
B. Undifferentiated cells
C. Histocytes
D. Osteoblasts
Propriceptors are seen in all except______________?
A. Skeletal muscle
B. TMJ
C. Pulp
D. None of the above
Which of the following is correct?
A. Reparative dentin is characterized by having fewer and more twisted tubules than normal dentin and may include odontoblasts
B. Dead tracts appear black in transmitted and white in reflected ligth
C. Sclerotic transparent dentin appears transparent or light in transmitted light and dark in reflected light
D. All of the above
Neonatal lines are seen in_______________?
A. Enamel of deciduous incisiors
B. Enamel of permanent incisors
C. Enamel of premolars
D. Dentin of all teeth, as if is formed first
Tooth buds of permanent mandibular incisors are situated_____________?
A. Lingual to primary teeth
B. Inferior to primary teeth
C. Labial to primary teeth
D. A and B
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