Mcq Subject: Dental
For measuring hardness of Co-Cr alloy, which hardness test is used?
A. Vicat apparatus
B. Cold bend
C. Heat and cold bend
D. Rockwell hardness test
View DescriptionTrisodium phosphate in alginate acts as:
A. Retarder
B. Reactor
C. Accelerator
D. Plasticizer
View Descriptionp’ value is 0.00, then
A. Results are true of 99.9% of population
B. Test is not significant
C. 1% of significance
D. There is no co-relation
View DescriptionDifference between the skin and mucosa of cheek is:
A. Thin lamina and non keratinized mucosa of cheek
B. Keratinized mucosa of cheek
C. Rete pegs
D. Thick lamina propria on skin of cheek
View DescriptionTwo palatal roots are found in what percentage of maxillary 1st molars
A. 1-4%
B. 2-10%
C. 0-1 %
D. Two palatal roots are never found
View DescriptionA screening test is used in the same way in two similar populations but the proportion of false positive results in population A is lower than that in population B. what is the likely explanation?
A. The specificity of the test is lower in population A
B. The prevalence of the disease is lower in population A
C. The prevalence of the disease is higher in population A
D. The specificity of test is higher in population A
View DescriptionWhich type of prefabricated post preparation system in mandibular molar is preferred?
A. Tapered, screwed in
B. Parallel, screwed in
C. Tapered, passively cemented
D. Parallel, partially cemented
View DescriptionEtching depth after 30 sec for orthodontic bracket with orthophosphoric acid is:
A. 10 μm — 20 μm
B. 3 μm — 9 μm
C. 50 μm — 110 μm
D. 200 μm — 250 μm
View DescriptionHow much Is the connective tissue width around an Implant
A. 2-3 mm
B. 3-3.65 mm
C. 4-4.5 mm
D. 4-5 mm
View DescriptionCreep rate decreases with:
A. Increase force of condensation
B. Decrease force of condensation
C. Under or overtrituration
D. Dealy in time between trituration and condensation
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