Efeito associado do uso da fotobiomodulação com luz em comprimento de onda vermelho e infravermelho sobre o reparo em áreas enxertadas com osso bovino desproteinizado

Abstract

This study compared the effect of combined red and infrared light photobiomodulation therapy (PBMT) on the repair of areas grafted with deproteinized bovine bone (DBB). Twenty-four rats were used and evaluated at two experimental time points (30 and 90 days; n=6). Teflon capsules filled with DBB were bilaterally implanted in the mandibular ramus of each animal. The groups were divided according to the type of treatment applied to the grafted area: CTR – DBB without adjunctive treatment; IRL/RL – DBB associated with PBMT using infrared and red light. Histomorphometric analysis was performed to evaluate the composition of the repaired tissue. It was observed that the IRL/RL group presented a greater amount of bone at 90 days compared to the CTR group, and a lower amount of soft tissue than the CTR group at 90 days (p<0.05). The findings suggest that the combined application of PBMT with red and infrared laser has a significant biostimulatory effect on the bone regeneration process in areas grafted with DBB.