Dusan Šurdilović¹,
Ivana Stojanovic²,
Mirjana Apostolović¹,
Marija Igić¹,
Ljiljana Kostadinović¹,
Olivera Tričković Janjić¹

¹cLINIc OF DeNtIstRy, MeDIcAL FAcULty;
²INstUte OF BIOcHeMIstRy, MeDIcAL FAcULty, NIs, seRBIA

Phoshpate buffer is a predominant buffer in unstimulated saliva. The buffer is a combination of primary and secondary phospate. This prospective study enrolled 123 children with permanent dentition, with a similar number of males and females. Phosphate concentracions were determined using the molybdenum reaction by Goldenberg and Fernandez spectrophotometry method. In the group of examinees with low caries risk in both stimulated and unstimulated saliva groups signifi-cantly higher phosphate values were observed compared to the high caries risk group. A higher capacity of phosphate buffer in stimulated saliva in both studied patient groups indicate significant buffer activity of phosphate buffer in unstimulated saliva. The level of phosphate buffer is negatively correlated with caries incidence.

Key words: saliva, Phosphate buffer, caries