Effectiveness of probiotic lozenges and Chlorhexidine mouthwash on plaque index, salivary pH, and count among school children in Makkah, Saudi Arabia.

Purpose: To compare the effect of the probiotic lozenges and chlorhexidine (CHX) mouthwash on plaque index (PI) , salivary pH and Streptococcus mutans (S. mutans) 3 count among groups of Saudi children.

Methods: A total of 54 participants aged 8-12 years were randomly allocated into three groups, 18 children in each group.