Objective : To assess the efficacy of gel coating on various surfaces in the treatment of chronic generalized slight periodontitis. Methods : 27 patients with chronic slight periodontitis were examined. After the curettage of periodontal pockets, 14 patients (the 1 st group) were applied a poviargol-based gel coating on the gum and 13 patients (the 2 nd group) were applied a gel based on sodium hyaluronate with chlorhexidine. Periodontal status was assessed before treatment on the 3 rd and 7 th day after curettage: dental indices, the depth of periodontal pockets, and tooth mobility were determined. Results : The oral hygiene parameters significantly improved in all patients. On the 3 rd day after curettage, inflammation significantly decreased, and by the 7 th day they disappeared in both observation groups. Conclusions : Gel adhesive coatings can be a successful alternative to traditional treatment dressings in the treatment of periodontitis. They have antimicrobial, anti-inflammatory and wound healing effects, and are also characterized by the absence of toxic and locally irritating effects.