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Background: Coenzyme Q10 is an antioxidant whose efficacy in periodontal diseases is well known. However studies regarding its efficacy in smokers with periodontitis are few. Coenzyme Q10 serves as an endogenous antioxidant and its increased concentration in the diseased gingiva effectively suppresses advanced periodontal inflammation., Objectives: The aim of this study is to evaluate the efficacy of coenzyme Q10 as an adjunct to scaling and root planing in smokers with chronic periodontitis., Methods: Total of 40 patients were enrolled for the study. The subjects were divided into control (Scaling and root planing only) and test group (Coenzyme Q10 plus Scaling and root planing). Clinical parameters such as plaque index, modified sulcular bleeding index, probing pocket depth and clinical attachment level. These were assessed at baseline, at 1 month and 3 month. The results were subjected to appropriate statistical analysis., Results: There was a significant improvement in all clinical parameters in the test sites seen at the end of the 1 month and 3 month period., Conclusions: Coenzyme Q10 can be said to have a beneficial effect on smokers with periodontitis when used as an adjunct to scaling and root planing.

Background: Postsurgical root sensitivity has always been an enigma to the periodontists. There is a plethora of evidence suggesting the presence of root sensitivity following periodontal flap surgical procedures. Thus, the aim of the present study was to compare and evaluate the effect of low-power diode lasers with and without topical application of stannous fluoride (SnF 2 ) gel in the treatment of root sensitivity and also evaluate whether laser creates any placebo effect in the control group or not., Materials and Methods: Thirty patients participated in this study and 99 teeth were included. Root sensitivity was assessed for all groups with a Verbal Rating Scale (VRS). For each patient, the teeth were randomized into three groups. In the test Group I, sensitive teeth were treated with SnF 2 and diode laser. In the test Group II, sensitive teeth were irradiated with laser only. In the control group, no treatment was performed., Results: The mean ± standard deviation (SD) score for VRS and Visual Analog Scale at baseline was not statistically significant ( P > 0.05) between the three groups. After 15 min, statistical significant difference was seen in test Group I and test Group II, although no difference was found in the control group. At 15 th day and 30 th day, the mean ± SD scores were statistically significant ( P < 0.05)., Conclusion: Within the limitations of the study, it can be concluded that diode lasers alone and in combination with 0.4% SnF 2 was effective in the treatment of root sensitivity after access flap surgery., Competing Interests: There are no conflicts of interest.