Influence of phototherapies on the outcome of complete tibial fractures grafted or not with MTA: Raman spectroscopic study on rabbits

Antônio L. B. Pinheiro; Luiz G. P. Soares; Aline C. P. da Silva; Nicole R. S. Santos; Anna Paula L. T. da Silva; Bruno Luiz R. C. Neves; Amanda P. Soares; Landulfo Silveira Jr.

doi:10.1117/12.2286930

8 February 2018 Influence of phototherapies on the outcome of complete tibial fractures grafted or not with MTA: Raman spectroscopic study on rabbits

Antônio L. B. Pinheiro, Luiz G. P. Soares, Aline C. P. da Silva, Nicole R. S. Santos, Anna Paula L. T. da Silva, Bruno Luiz R. C. Neves, Amanda P. Soares, Landulfo Silveira Jr.

Author Affiliations +

Proceedings Volume 10477, Mechanisms of Photobiomodulation Therapy XIII; 104770G (2018) https://doi.org/10.1117/12.2286930
Event: SPIE BiOS, 2018, San Francisco, California, United States

Abstract

The aim of the present study was to assess, by means of Raman spectroscopy, the repair of complete surgical tibial fractures fixed with wire osteosynthesis or miniplates treated or not with infrared laser (λ780 nm) or infrared LED (λ850 ± 10 nm) lights, 142.8 J/cm² per treatment, associated or not to the use of mineral trioxide aggregate (MTA) cement. Surgical fractures were created on 36 rabbits and fixed with WO or miniplates and some groups were grafted with MTA. Irradiated groups received lights at every other day for 15 days and sacrifice occurred after 30 days. The results showed that only irradiation with either laser or LED influenced the peaks of phosphate (~960 cm^-1) and carbonated (~1,070 cm^-1) hydroxyapatite. Collagen peak (1,450 cm^-1) was influenced by both the use of MTA and irradiation with either laser or LED. It is concluded that the use of either laser or LED phototherapy associated to MTA cement was efficacious on improving the repair of complete tibial fractures treated with wire osteosynthesis or miniplates.

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Antônio L. B. Pinheiro, Luiz G. P. Soares, Aline C. P. da Silva, Nicole R. S. Santos, Anna Paula L. T. da Silva, Bruno Luiz R. C. Neves, Amanda P. Soares, and Landulfo Silveira Jr. "Influence of phototherapies on the outcome of complete tibial fractures grafted or not with MTA: Raman spectroscopic study on rabbits", Proc. SPIE 10477, Mechanisms of Photobiomodulation Therapy XIII, 104770G (8 February 2018); https://doi.org/10.1117/12.2286930

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