Gingival recession is the apical shift of the gingival margin leading to root surface exposure. The presence of gingival recession can cause other negative effects, such as root sensitivity, esthetic demand and cervical wear. Because of these problems cause by gingival recession, there are many surgical techniques aimed to deal with recessions. Among all available surgical procedures, the connective tissue graft is the most predictable and the one presenting better long term results. However, this procedure has been related to greater mobility and post-surgical pain compared to other techniques because it requires a second surgical site in order to harvest the graft. Previous study reports that the low-level laser therapy (LLLT) using a dosage of 15Jcm2 may improve the wound healing and as a consequence the post-operative patient comfort. However, there is a lack in the literature of studies showing the best LLLT protocol for this specific situation Therefore, the aim of the present study is to compare 2 different LLLT protocols on the wound healing process of the donor site (palate) of CTG procedure. For this, 20 individuals presenting gingival recession will be randomly divided in 2 groups: Group 60: CTG procedure for root coverage and LLLT application at the donor site using a 60J/cm2 dose, and Group 30: CTG procedure for root coverage and LLLT application at the donor site using a 30J/cm2 dose. The clinical and photographic parameters will be evaluated: Defect Area (DA); presence of scars (S); tissue colorimetric evaluation (TC); post-operative pain (P). Intragroup and intergroup evaluation will be performed using significance of 5%.
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