RESUMO
The most common dental disease in childhood is dental caries. This study was carried out to recognize the components of saliva which are protective factors in children in order to evaluate and predict caries susceptible and caries resistant individuals. A total of 75 subjects of either sex aged 3-5 years old from kindergartens in Tehran were selected and divided into 3 groups [case group: dmft>6, control group 1: 1