 This research paper examined the effectiveness of heterologous fibrin biopolymer, HFB, combined with photobiomodulation, PBM, in the repair of the buccal branch of the facial nerve, BBFN, in rats. The results showed that HFB and PBM had positive effects on the morphological and functional stimulation of the BBFN, suggesting it as a potential alternative and favorable method for the regeneration of severe injuries. This article was authored by Kluber Rodrigo de Susabueno, Maria Clara Castle-Latonin, Daniela Vieira Buchain and others.