Salivary Cortisol

the goal of this study is to test the effect of psychological stress on pediatric patients visiting specialized and general dental clinic by measure salivary cortisol and salivary alpha amylase and by use children fear survey schedule -dental subscale . 80 male subjects will be enrolled in this study between 4-6 years old with first dental visit ,40 subjects visiting specialized pediatric dental clinic to see the effect of specific environment and attitude of dentist on child stress ,and 40 subjects visiting general dental clinic with normal environment and general dentist . the method of study is by taking two saliva sample from child , first when he will enter the clinic at reception and second after half hour when he will diagnosed without any type of treatment.