Resumo

SUAZO GALDAMES, Iván Claudio; LARA SEPULVEDA, María Constanza; CANTIN LOPEZ, Mario Gonzalo  e  ZAVANDO MATAMALA, Daniela Alejandra. Effect of the Low-power Laser on the Oral Mucous Injured. Int. J. Morphol. [online]. 2007, vol.25, n.3, pp.523-528. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022007000300008.

The laser use has had a constant evolution and development; the bioestimulantion effects have been verified in numerous studies that the irradiation laser of fall promotes produces on having interacted with cells and tissues This study tries to determine the morphologic differences in the oral mucous injured, after the application of low-level laser, across changes in the vascular density of the subpapilar plexus of the mucous oral. Fifteen Sprague Dawley mice were used, which formed three groups, in the total number of animals the oral mucous was injured, in the average zone of the labial low frenum. Group I was taken as a control; in group II a low-level laser was applied on the mucous immediately the oral injury, then, at 48 after 24 hours in a dose of 6 Joule/cm² for application; Group III a low-level laser in a single dose of 18 Joule/cm² was applied immediately the oral injury. The unit of sample and analysis they were the histological cuts obtained of the section of the oral mucous injured. The results show a major vascular density in the group the II with regard to the group I and the III, with a density I mediate of 4,07 vassels/25mm², while the group I of 2,47 vassels/25mm² and group II of 1,87 vassels/25mm². No find differences between groups I and III. These results indicate that the application of low-level laser in low dose originate an increase in the vascular density in the oral mucous injured

Palavras-chave : Low level laser therapy; Laser biostimulation; Oral mucous.

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