Comparison of two power densities on the healing of palatal wounds after connective tissue graft removal: randomized clinical trial

Author(s)

da Silva Neves, Felipe Lucas ; Silveira, Camila Augusto ; Fernandes Dias, Stephanie Botti ; Santamaria Junior, Milton ; de Marco, Andrea Carvalho ; Kerbauy, Warley David ; de Melo Filho, Antonio Braulino ; Neves Jardini, Maria Aparecida ; Santamaria, Mauro Pedrine

• Document type: Journal article
• Source: Lasers in Medical Science; v. 31, n. 7, p. 1371-1378, SEP 2016.
• Web of Science Citations: 7

Abstract

Connective tissue graft (CTG), which is considered to be among the best techniques for treating gingival recession, has presented stable long-term results. However, this technique causes morbidity and discomfort in the palatine region due to graft removal at that site. A previous study reports that photobiomodulation (PBM) using a dosage of 15 J/cm(2) may improve wound healing and the patient's postoperative comfort. However, no other studies in the literature provide the best application dosage or comparisons between protocols for this purpose. The aim of this study is to compare two power densities of PBM on the wound-healing process of the donor palatine area after CTG removal. In this study, 51 patients presenting buccal gingival recession were randomized into one of the following groups: group 1: CTG procedure for root coverage and PBM application at the donor site using a 60 J/cm(2) dose; group 2: CTG and. PBM application using a 30 J/cm(2) dose; or group 3: CTG and sham application. The evaluated parameters were the wound remaining area (WRA), scar and tissue colorimetry (TC), tissue thickness (TT), and postoperative discomfort (D), evaluated at baseline and 7, 14, 45, 60, and 90 days after surgery. Group 1 presented statistically significant smaller wounds at day 7 (p > 0.05). None of the patients presented scars at the operated area, and all of the patients reported mild discomfort, with low consumption of analgesic pills. We concluded that the protocol of 60 J/cm(2) provided faster wound healing 7 days after removing the connective tissue graft for root coverage. (AU)

• FAPESP's process: 14/00119-0 - Evaluation of two different types of flap associated with connective tissue graft in the treatment of gingival recession: randomized clinical trial
• Grantee: Felipe Lucas da Silva Neves
• Support type: Scholarships in Brazil - Master
• FAPESP's process: 14/09147-7 - Comparison of two different low-level laser intensity protocols on the healing of palatal wounds after connective tissue graft removal: pilot study
• Grantee: Fernanda Zapater Pierre
• Support type: Scholarships in Brazil - Scientific Initiation