(A) Raw starch
(B) Sucrose
(C) Cooked starch
(D) Fructose

(A) Zone which can not be remineralized
(B) Zone of bacterial invasion
(C) Zone in which collagen is irreversibly denatured
(D) Zone that need not be removed before restoration

(A) 1890
(B) 1924
(C) 1920
(D) 1980

(A) Availability of carbohydrate food
(B) Formation of large amount of acid
(C) Viscosity of saliva
(D) Localization of acid over tooth surface

(A) Lactobacillus is main acusative organism in plaque
(B) Fluorides help in reducing caries incidence
(C) Pit and Fissure caries can be prevented by using pit and tissue sealants
(D) Smooth surface caries occur due to streptococcus mutans

(A) Enamel lamellae
(B) Dentinoenamel junction
(C) Enamel spindles
(D) Striae of Retzius

(A) Medium buffering capacity for acids
(B) low buffering capacity of acids
(C) High buffering capacity for acids
(D) Independent of buffering capacity for acids

(A) Miller
(B) Gottlieb
(C) G.V black
(D) Schwartz

(A) Pulp
(B) Dentin
(C) Enamel
(D) Cementum

(A) Increase in calculus formation
(B) Increase in plaque formation
(C) Decrease in plaque formation
(D) Causes precipitation of salivary proteins