Caries begins as a subsurface lesion which can be remineralized as long as the surface remains intact. Supersaturated salivary caleium and phosphates in the presence of floride can slowly remineralize demineralized enamel
� Caries begins as a subsurface lesion which can be remineralized as long as the surface remains intact. � Supersaturated salivary calcium and phosphates in the presence of fluoride can slowly remineralize demineralized enamel
Remineralized enamel is more resistant to subsequuent demineralization than original intact enamel
� Remineralized enamel is more resistant to subsequent demineralization than original intact enamel
This represents a competition between the pathologic factors (such as bacteria and carbohydrates)and the protective factors (such as saliva,calcium,phosphate and fluoride)
� This represents a competition between the pathologic factors (such as bacteria and carbohydrates) and the protective factors ( such as saliva, calcium, phosphate and fluoride)