Abstract Title:

Photobiomodulation therapy (PBMT) in bone repair: A systematic review.

Abstract Source:

Injury. 2019 Nov ;50(11):1853-1867. Epub 2019 Sep 21. PMID: 31585673

Abstract Author(s):

Jose Stalin Bayas Escudero, Maria Gabriela Benitez Perez, Marcelie Priscila de Oliveira Rosso, Daniela Vieira Buchaim, Karina Torres Pomini, Leila Maria Guissoni Campos, Mauro Audi, Rogério Leone Buchaim

Article Affiliation:

Jose Stalin Bayas Escudero


BACKGROUND: Photobiomodulation therapy (PBMT) using low-level laser influences the release of several growth factors involved in the formation of epithelial cells, fibroblasts, collagen and vascular proliferation, besides accelerating the synthesis of bone matrix due to the increased vascularization and lower inflammatory response, with significant increase of osteocytes in the irradiated bone. Considering its properties, beneficial effects and clinical relevance, the aim of this review was to analyze the scientific literature regarding the use of PBMT in the process of bone defect repair.

METHODS: Electronic search was carried out in PubMed/MEDLINEand Web of Science databases with combination of the descriptors low-level laser therapy AND bone repair, considering the period of publication until the year 2018.

RESULTS: The literature search identified 254 references in PubMed/MEDLINE and 204 in Web of Science, of which 33 and 4 were selected, respectively, in accordance with the eligibility requirements. The analysis of researches showed articles using PBMT in several places of experimentation in the subjects, different types of associated biomaterials, stimulatory effects on cell proliferation, besides variations in the parameters of use of laser therapy, mainly in relation to the wavelength and density of energy. Only four articles reported that the laser did not improve the osteogenic properties of a biomaterial.

CONCLUSIONS: Many studies have shown that PBMT has positive photobiostimulatory effects on bone regeneration, accelerating its process regardless of parameters and the use of biomaterials. However, standardization of its use is still imperfect and should be better studied to allow correct application concerning the utilization protocols.

Study Type : Animal Study

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