Dental Calculus Mcq

 

Dental Calculus

Multiple Choice Questions

 

1. Which of the following does not serve as an endogenous nutrient source for plaque microorganisms in deep periodontal pockets?
   1.   Saliva
   2.   GCF
   3.   Degenerating eoithelial cells
   4.   Other microorganisms
2. Hard deposits found on tooth and appliances in an uncleaned mouth is called as
   1.   Plaque
   2.   Calculus
   3.   Materia alba
   4.   None
3. Inorganic component of calculus is closest to
   1.   Enamel
   2.   Dentin
   3.   Cementum
   4.   Bone
4. Calculus causing bacteria is
   1.   Wollinella
   2.   Veillonella
   3.   Eikenella
   4.   Prevotella
5. Crystalline form of calcium phosphate found in highest concentration in supragingival plaque is
   1.   brushite and hydroxyapatite
   2.   Hydroxyapatite and whitelockite
   3.   Hydroxyapatite and brushite
   4.   hydroxyapatite and octacalcium phosphate
6. In periodontal disease, calculus is considered as
   1.   contributing factor
   2.   primary factor
   3.   Aetiological factor
   4.   Governing factor
7. Mineralisation inhibitors of calculus formation are all except
   1.   triclosan
   2.   Pyrophosphate
   3.   Zinc salt
   4.   Diphosphate
8. Brushite crystal forms of calculus are more common in
   1.   Maxillary anterior
   2.   Maxillary posterior
   3.   Mandibular anterior
   4.   Mandibular posterior
9. Inorganic content of calculus has maximum of
   1.   CaPO4
   2.   CaCl2
   3.   CaSO4
   4.   CaCO3
10. Subgingival calculus is found in maximum amount at
    1.   Lower anterior region
    2.   Lower bicuspid region
    3.   Lower molar region
    4.   Upper molar region