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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/13562

Title: Laser Therapy Improves Healing of Bone Defects Submitted to Autologus Bone Graft
Other Titles: Photomedicine and Laser Surgery
Authors: Weber, João Batista Blessmann
Pinheiro, Antonio Luiz Barbosa
Oliveira, Marília Gerhardt de
Oliveira, Flávio Augusto M.
Ramalho, Luciana Maria Pedreira
Keywords: Laser Therapy;Autologus bone graft;Post-operatively
Issue Date: 2006
Abstract: Objective: The aim of the present study was to assess histologically the effect of low-level laser therapy (LLLT) (λ830 nm) on the healing of bone defects associated with autologous bone graft. Background Data: LLLT has been used on the modulation of bone healing because of the photo-physical and photochemical properties of some wavelengths. The use of correct and appropriate parameters has been shown to be effective in the promotion of a positive biomodulative effect on the healing bone. Methods: Sixty male Wistar rats were divided into four groups: G1 (control), G2 (LLLT on the surgical bed), G3 (LLLT on the graft), and G4 (LLLT on both the graft and the surgical bed). The dose per session was 10 J/cm2, and it was applied to the surgical bed (G2/G4) and on the bone graft (G3/G4). LLLT was carried out every other day for 15 days (λ830 nm, = 0.5 cm2, 50 Mw, 10 J/cm2). The dose was fractioned in four points. The animals were sacrificed 15, 21, and 30 days after surgery; specimens were taken and routinely processed (wax, cut, and stain with H&E and Sirius red stains). Light microscopic analysis was performed by a pathologist. Results: In the groups in which the LLLT was used trans-operatively on the surgical bed (G2/G4), bone remodeling was both quantitatively and qualitatively more evident when compared to subjects of groups G1 and G3. Conclusion: The present study indicates that the use of LLLT trans-operatively resulted in a positive biomodulative effect on the healing of bone defects associated with autologous bone grafts.
Description: Texto completo: acesso restrito. p.38-44
URI: http://repositorio.ufba.br/ri/handle/ri/13562
ISSN: 1549-5418
Appears in Collections:Artigos Publicados em Periódicos (Odontologia)

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