Efeito da fotobiomodulação em duplo comprimento de onda na cicatrização tecidual de áreas doadoras de enxerto de tecido conjuntivo: estudo Piloto

Abstract

The aim of this study was to evaluate the protocol of dual-wavelength photobiomodulation in the tissue repair process of subepithelial connective tissue graft donor sites. Seven patients with indications for gingival recession coverage associated with subepithelial connective tissue graft and advanced coronally positioned flap were selected. The donor areas from the hard palate of these patients were treated with dual-wavelength photobiomodulation at baseline and after 3, 7, 10, and 14 days following the surgical procedure. A total of 9 J of energy was applied in each session to the surgical wounds. The size of the lesions, epithelialization, and pain sensation were evaluated at baseline, and after 3, 7, 15, and 30 days following the surgical procedure. Among the treated patients, 4 showed complete wound epithelialization by the 3rd postoperative day. By day 7, six patients who underwent dual-wavelength photobiomodulation were considered to have complete and controlled epithelialization. Starting from the 10th day, all patients treated with dual-wavelength photobiomodulation showed complete epithelialization, while in the control group, only two patients did. Regarding pain, patients undergoing dual-wavelength photobiomodulation reported pain levels on the VAS scale lower than 3 in all experimental periods. From the 10th day onward, no patients reported pain in the donor areas. None of the patients took analgesics for more than 3 days. It can be concluded that the dual-wavelength photobiomodulation protocol shows promise in the treatment of wounds in gingival graft donor areas originating from the hard palate.