ArticleThe journal of venomous animals and toxins including tropical diseases2026
Membrane-free bone regeneration using biphasic calcium phosphate, heterologous fibrin biopolymer, and photobiomodulation: an
Article in The journal of venomous animals and toxins including tropical diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Although bone tissue possesses inherent regenerative capacity, critical-sized defects require grafts for complete functional repair. This Methods: Thirty male rats were divided into three groups: biomaterial alone (BG), biomaterial + HFB (BBG), and biomaterial + HFB + PBM (BBPG). A 5-mm circular calvarial osteotomy was performed and filled according to each protocol. In BBPG, an 830-nm laser was applied immediately post-surgery and three times weekly until euthanasia at 14 or 42 days. Analyses included micro-CT, histomorphology, histomorphometry, and polarized light microscopy of collagen fibers. Results: Micro-CT showed centripetal bone regeneration restricted to defect margins, with biomaterial particles persisting centrally. Histologically, new bone progressed from immature trabecular architecture at day 14 to a mature lamellar conformation by day 42, notably in BBPG. All groups showed a significant temporal increase in new bone percentage. BBPG demonstrated superior bone growth at 42 days (26.64 ± 2.15%) compared to BG (14.85 ± 1.63%) and BBG (20.05 ± 1.70%). The birefringence of the collagen fibers showed a color transition from red to yellowish-green during the analyzed periods. Conclusion: The combination of the biomaterial, fibrin biopolymer and photobiomodulation significantly enhanced bone defect repair and matrix maturation without barrier membranes, presenting high translational potential for cost-effective clinical applications in regenerative medicine.
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