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Estudo do grau de polarização linear em lesões de pele irradiadas com laser durante o processo de cicatrização

Author(s): Daniela de Fu00E1tima Teixeira da Silva | Alessandro Melo Deana | Cristiane Miranda Franu00E7a | Kristianne Porta Santos Fernandes | Raquel Agnelli Mesquita-Ferrari | Josu00E9 Antu00F4nio da Silva Junior | Jou00E3o Carlos Ferrari Correa | Andru00E9 Felipe Henriques Librantz | Martha Simu00F5es Ribeiro

Journal: ConScientiae Saúde
ISSN 1677-1028

Volume: 9;
Issue: 4;
Start page: 589;
Date: 2010;
Original page

Introduction: The physiological conditions of tissue and optical characteristics of beam, like electric field polarization, are some of the determining factors in the photobiological response of low intensity laser therapy. Objectives: The degree and preservation of linear polarization in samples of healthy and injured rat skin were investigated. Methods: Cryolesions were created in the lower back of rats and treated for four days with 1J/cm2. The laser electric field was aligned in 0º and 90º to the backbone of the animals. Results: The polarization was maintained in the superficial layers of the skin, being better preserved in burned skin. During the wound healing, the lesion whose electric field was aligned parallel to the spine showed a degree of bias similar to that of healthy skin. Conclusions: The repair process of skin was influenced by linear polarization of He-Ne laser beam.
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