Gingival recession is a highly prevalent problem, and may reach 100% of individuals older than 50 years old. The presence of the recession may lead to other problems such as tooth sensitivity, esthetic complaints, biofilm accumulation, root caries, and non-carious cervical lesions. To deal with gingival recessions, several surgical techniques have been developed. The most predictable results are acheived by coronally positioned flap (CAF), performed alone or associated with connective tissue graft (CTG). However, the literature shows that smokers patients present poor results compared to non-smokers when CAF and CTG are used to treat gengival recessions. Thus, there is a need to test new approaches in order to increase the predictability of the treatments for gingival recession in this group of patients. Therefore, the aim of this study is to evaluate the influence of low-intensity laser therapy on connective tissue graft to treat gengival recession in smokers, using clinical parameters, aesthetics and patient comfort evaluations. To this end, a double-blind controled clinical trial will be performed following the CONSORT-STATEMENT 2010 guidelines. Thirty patients presenting gingival recession be selected and will be allocated in two groups: Test Group (n=15), connective tissue graft associated with the application of low intensity laser in smokers individuals and the Control Group (n=15), connective tissue graft associated with the application of low intensity laser in non-smokers individuals. The percentage of root coverage, aesthetics scores and patient comfort will be assessed at baseline and 45 days, 2, 3, and 6 months after the procedure.
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