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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/3808

Title: IAssistant Professors, Department of Basic Science, School of Dentistry, Foundation for the Development of Science, Salvador IIAssociate Professor, Diagnosis and Therapeutics Department, Federal University of Bahia IIIHead of the Experimental Pathology Laboratory, Gonçalo Moniz Research Center, FIOCRUZ
Other Titles: Pesquisa Odontológica Brasileira
Authors: Pugliese, Lívia Souza
Medrado, Alena Ribeiro Alves Peixoto
Reis, Sílvia Regina de Almeida
Andrade, Zilton de Araújo
Keywords: Lasers;Laser therapy;low-level;Wound healing;Collagen;Lasers;Terapia a laser de baixa intensidade;Cicatrização de feridas;Colágeno
Issue Date: 2003
Publisher: Pesquisa Odontológica Brasileira
Abstract: The study of low-level laser therapy upon extracellular matrix elements is important to understand the wound healing process under this agent. However, little is known about the interference of laser light in relation to collagen and elastic fibers. Cutaneous wounds were performed on the back of 72 Wistar rats and a Ga-Al-As low-level laser was punctually applied with different energy densities. The animals were killed after 24, 48, 72 hours and 5, 7 and 14 days. Tissues were stained with hematoxilin-eosin, sirius red fast green and orcein and then analyzed. It was observed that the treated group exhibited larger reduction of edema and inflammatory infiltrate. The treated animals presented a larger expression of collagen and elastic fibers, although without statistical significance (p > 0.05). Treatment with a dosage of 4 J/cm² exhibited more expressive results than that with 8 J/cm². In this study, the authors concluded that low-level laser therapy contributed to a larger expression of collagen and elastic fibers during the early phases of the wound healing process.
URI: http://www.repositorio.ufba.br/ri/handle/ri/3808
ISSN: 1517-7491
Appears in Collections:Artigos Publicados em Periódicos (Odontologia)

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