Comparison of Oral Chlorhexidine with Green Tea Mouthwash in Treatment of Patients with Chronic Generalized Periodontitis: A Double-Blind Controlled Randomized Clinical Trial

Introduction:: Periodontitis is a chronic inflammatory disease with the destruction of tooth supporting structures. The aim of this study was to evaluate the effect of green tea mouthwash compared to chlorohexidine (CHX) mouthwash, as adjuncts to scaling and root planning (SRP), on clinical parameters of subjects with chronic periodontitis. Materials and methods: A double-blinded randomized clinical trial was carried out on 40 patients with moderate generalized chronic periodontitis who were randomly allocated to two groups. Following SRP, one group was treated with 0.2% CHX mouthwash and the other group was treated with 0.05% green tea mouthwash for 3 weeks. The clinical parameters; BOP, PI, GI, CAL and PD were recorded at baseline, 7th day, and 21st day. The data obtained was statistically analysed by SPSS version 24 using Kolmogorov Smirnov test, Levonchr('39')s test, Repeated measures with Sphericity Assumed, Independent t-test and Bonferroni were used for analysis. Also, p<0/05 is considered significant. Results: CHX and green tea mouthwash had significantly decreased PD, GI, PI and BOP in 1st week and in 3rd week. However, the difference of PD, GI and PI at baseline and in 1st week between CHX and green tea group was not significant while after 3 weeks, the difference was significant. Comparison of BOP among green tea and CHX group showed significant difference in 1st week and 3rd week. Conclusions: Green tea as a mouthwash is more effective compared to CHX mouthwash and is an appropriate adjunctive measure in the treatment of chronic periodontitis.