376.The difference in color of subgingival and supragingival calculus is due to

a.ph of saliva
b.death of leucocytes
c.hemolysis of erythocytes
d.none


Ans-c.hemolysis of erythrocytes

375.The protiens found in the attachement plaque

a.albumin and globulin
b. amelogenin and enamelin
c.sialoprotien
d.desmoplakin and plakoglobin


Ans-d.desmoplakin and plakioglobin

375.Biological width means

a.sumof connective tissue and junctional epethilium

b.distance from  the tip of the papilla to th base of the sulcus

c.distance from the marginal gingiva to mucogingival junction

d.distance from the incisal edge of the tooth to the mucogingival junction

 Ans-a.sum of connective tissue and junctional epethilium

Ref-carranza 10th ed pg 1044