THEODORO, L.H.GARCIA, V.G.ZEZELL, D.M.HAYPEK, P.BACHMANN, L.SAMPAIO, J.E.C.2022-02-162022-02-162004THEODORO, L.H.; GARCIA, V.G.; ZEZELL, D.M.; HAYPEK, P.; BACHMANN, L.; SAMPAIO, J.E.C. Effect of Er:YAG and diode lasers in the adhesion of blood components and in the morphology of irradiated root surfaces. <b>Brazilian Dental Journal</b>, v. 15, p. 89-89, 2004. Special issue. Disponível em: http://repositorio.ipen.br/handle/123456789/32737.0103-6440http://repositorio.ipen.br/handle/123456789/32737The aim of this study was to evaluate in vitro the adhesion of blood components on root surfaces irradiated with Er:YAG (2.94??m) and GaAlAs Diode (808 nm) lasers and these effects on irradiated root surfaces. It was obtained 100 samples of human teeth. They were scaled and divided into five groups of 20 samples each: G1 (Control); G2 -Er:YAG laser (7.6 J/cm2); G3 - Er:YAG laser (12.9 J/cm2); G4 -Diode laser (90 J/cm2) and G5 - Diode laser (108 J/cm2). After these treatments were conducted, 10 samples of each group received a blood tissue, and the reminiscent 10 samples did not receive such treatment. After laboratorial treatments the samples were analysed by scanning electron microscopy. The results have shown that there were no significant differences between the Control Group and the groups treated with Er:YAG laser (p=0,9633 and 0,6229); G4 and G5 were less effective than the Control Group and the Er:YAG laser groups (p<0,01). No proposed treatment increased the adhesion of blood components in a significant way when compared to the Control Group; although the Er:YAG laser did not interfere in the adhesion of blood components it caused more changes on the root surface, while the Diode laser inhibited the adhesion.89-89openAccessteethbloodfibrinlaserserbiumin vitromorphological changesResumos em periódicos15Special issue0000-0001-7404-9606https://orcid.org/0000-0001-7404-9606Sem PercentilSem Percentil CiteScore