Methods: Forty randomized subjects divided into two groups with and without treatment of rinsing with green tea, between 168 and 720 hours after band insertion, the samples were collected from GCF. The data then analyzed with One-Way ANOVA.
Results: The results showed significant difference of AST levels between without rinsing (32.78±16.43), compare to 168 hours (24.04±11.19) and 720 hours (24.48±11.20) after mouth rinsing with green tea (p<0,05). In contrary, there was no significant difference of AST levels between 168 hours and 720 hours (p > 0,049)
Conclusions: Rinsing effect with green tea was effective in lowering AST levels during orthodontic treatment.