Material and Methods: 50 patient (31 female and 19 male) aged between 12 and 58 were involved in this study. Criteria for the prediction of caries risk were as follows : etiological factors such as level of salivary Streptococus mutans(MS),salivary lactobacilli(LB), plaque formation rate index(PFRI), caries prevalence(CP), external modifying risk factors(EMRF) such as frequency of sugar intake and socio-economical background, internal modifying risk factors such as flow rate of stimulated saliva(FRSS) and buffering capacity of the stimulated saliva(BCSS), immune response, preventive factors(PF) such as standard of oral hygiene, use of fluoride toothpaste, dietary habits and preventive dental care habits. Caries risks were predicted according to each criterion and scored as C=0,C=1,C=2,C=3 . Recorded data were statistically analyzed using Tukey's Multiple Comparison test One-way ANOVA non-parametric test and Spearman Correlation test.
Results: Caries risk scores assessed according to different criteria exhibited statiscally significant difference. Differences in caries risk scores (%) were found between BCSS/CP (% 70 ) (p<0.05),LB/CP ( % 62 ) (p< 0.01),PFRI / FRSS(% 92),PFRI / BCSS( % 92) , PFRI /CP(% 74),PFRI/EMRF(% 82),PFRI/PF(% 88),MS/FRSS(% 86), MS/BCSS(% 82), MS/CP (% 72), MS/EMRF(% 76), MS/PF(% 88), LB/FRSS(% 80), LB/BCSS(% 76),LB/EMRF(% 70), LB/PF(% 80),FRSS/CP(% 62),FRSS/EMRF(% 58),
FRSS / PF (% 62) (p< 0.001).
Conclusion: Caries risk scores assessed according to the different criteria are not in concordance with each other