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.Management Sciences
Category: Oral Histology
Intermediate cementum is___________?
A. Between enamel and cementum
B. Found at dentinocemental junction
C. Apical third
D. Coronal third
Which of the following anomalies occur during the initiation and proliferation of tooth development ?
A. Amelogenisis imperfecta
B. Dentinogenesis imperfecta
C. Enamel hypoplasia
D. Oligodontia
Inorganic content of cementum is_____________?
A. Less than bone
B. More than bone
C. Equal to that of bone
D. More than that of enamel
Nutritional supply of the ameloblasts during most of their life cycle is from the_____________?
A. Dental pulp
B. Odontoblastic processes
C. Dental sac
D. Reduced dental organ
Chronological hypoplasia is_____________?
A. Hypoplasia of local origin
B. Hypoplasia of systemic origin
C. Hypoplasia of hereditary origin
D. None of the above
Following is not an external manifestation of enamel________________?
A. Enamel tufts
B. Enamel lamella
C. Incremental lines of enamel
D. Enamel cuticle
The primary response of the pulp to tissue destruction is_______________?
A. Necrosis
B. Ulceration
C. Calcific degeneration
D. Inflammation
The anatomic crown is shorter than the clinical crown of a tooth in which of the following instances___________________?
A. Impaction
B. Gingivitis
C. Occlusal wear
D. Gingival recession
Ectodermal cells in tooth bud are responsible for_______________?
A. Determination of shape of crown and root
B. Formation of periodontal ligament
C. Formation of cementum
D. Formation of pulp
On microscopic examination enamel rods have___________?
A. Key hole appearance in cross section
B. Paddle appearance in cross section
C. Lanullate appearance in cross-section
D. None of the above
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