Using a Mouthwash Containing Propolis, Clove Oil and Chlorhexidine to Improve the Caries Risk of High Risk Patients

A total of 64 patients will be assigned in this study. Patients will be randomly divided into two groups according to type of mouthwash (A) where group A1 patients will use chlorhexidine mouthwash as control group while group A2 patients will use chlorhexidine with propolis and clove oil mouthwash as intervention group with 32 patients in each group. Each group will be further divided into two groups according to times of application (T) where T1 represents patients using the mouthwash once daily for one week every month for 6 months and T2 where patients will use the mouthwash twice daily for one week every month for 6 months with 16 patients in each subgroup.