In this study, 40 patients with a history of Mild- Periodontitis who were diagnosed with clinical and radiographic findings showed that all of the periodontal parameters before the treatment, during the treatment period Then, scaling & Root planing and oral hygiene instructions were given to the patients, and after 2 weeks, the patients who received the study were randomly divided into two groups (Balanced Block Randomization) with four blocks according to the visit time. To group A, oral chlorohexidine and to B group, the drug Ketorolac was given. 5 mm of the drugs required every 15 days the areas underwent a gingival wash with an insulin syringe, which lasted for 3 months.

In this study, 40 patients with a history of Mild- Periodontitis who were diagnosed with clinical and radiographic findings showed that all of the periodontal parameters before the treatment, during the treatment period Then, scaling & Root planing and oral hygiene instructions were given to the patients, and after 2 weeks, the patients who received the study were randomly divided into two groups (Balanced Block Randomization) with four blocks according to the visit time. To group A, oral chlorohexidine (Ghol Darou-Tehran) and to B group, the drug Ketorolac (Exir-Boroujerd) was given. 5 mm of the drugs required every 15 days the areas underwent a gingival wash with an insulin syringe, which lasted for 3 months. Pl, BI, PD were evaluated in the study sessions. At the end of the clinical change, a multiple measure ANOVA test was used to compare the preceding and follow-up sessions in both groups, considering the intervention method as Between subject comparison And measured at the time of measurement as a Repeated Factor.

Inclusion Criteria:

40 patients with periodontitis chronic and has a 2 molar symmetrically in the lower jaw pockets of the periodontal depth of at least 5 mm and CAL 1-2 mm in at least one of the surfaces of the teeth, were selected

Exclusion Criteria:

1. systemic disease
2. pregnancy or breastfeeding
3. allergy drug used
4. smoking
5. medication 6. not willing to consent to participate in the study

7-Trismus 8-The type of disease periodontal (Aggressive) 9. History of periodontal treatment in the previous 6 months 10-orthodontic treatment