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.Management Sciences
Category: Tooth Eruption, Shedding And Miscellaneous
Which of the following factors are primarily contributory to the shedding of deciduous tooth ?
A. Hydrostatic
B. Vascular pressure
C. Oncotic pressure
D. Masticatory pressure
In resorption of roots of the primary teeth, the dental pulp_____________?
A. Plays a passive role
B. Becomes a fibrotic non-vital mass
C. Initiates resorption from the inner surface of roots
D. Aids in formation of secondary dentin slowing down resorption
The apical foramen of a fully developed permanent tooth is usually lined by_____________?
A. Dentin
B. Cementum
C. Epithelial rest cells
D. The Epithelial diaphragm
Extracted teeth should be preserved in_____________?
A. Saline
B. Xylene
C. 10% Formalin
D. 10% alcohol
The most accepted theory of tooth eruption is____________?
A. Hydrodynamic theory
B. Clone theory
C. Periodontal ligament traction theory
D. Vascular theory
Teeth with out antagonist if erupt is called____________?
A. Stable
B. Over erupted
C. Supra erupted
D. Submerged
Oral tissue for microscopic examination is prepared by_______________?
A. Embedded in paraffin and sectioned
B. Embedded in paradion and sectioned
C. Frozen and sectioned
D. Specimens ground into thin sections
E. All of the above
The cells, which are responsible for removal of bone matrix in bone resorption, are_____________?
A. Osteoblast
B. Fibrocytes
C. Polymorphs
D. Osteoclasts
The deciduous teeth can be differentiated from permanent teeth by_____________?
A. Enamel prismatic arrangement
B. Dentinal tubule arrangement
C. Primary and secondary dentin
D. Mineral content
Frozen sections can be used for the demonstration of_____________?
A. Fat
B. Mucin
C. Cartilage
D. Iron
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