LUCIANO BACHMANN
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Resumo IPEN-doc 01816 Effect of Er:YAG and diode lasers in the adhesion of blood components and in the morphology of irradiated root surfaces2004 - THEODORO, L.H.; GARCIA, V.G.; ZEZELL, D.M.; HAYPEK, P.; BACHMANN, L.; SAMPAIO, J.E.C.The 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.Artigo IPEN-doc 20716 FT-Raman spectroscopic analysis of Nd:YAG and Er, Cr:YSGG laser irradiated enamel for preventive purposes2014 - ANA, P.A.; KAUFFMANN, C.M.F.; BACHMANN, L.; SOARES, L.E.S.; MARTIN, A.A.; GOMES, A.S.L.; ZEZELL, D.M.Livro IPEN-doc 11291 Estrutura e composição do esmalte e da dentina: Irradiação laser e tratamento térmico2005 - BACHMANN, LUCIANO; ZEZELL, DENISE M.Resumo IPEN-doc 14797 Changes in crystalline structure in dental enamel irradiated with Er,Cr:YSGG, Ho:YLF and Nd:YAG lasers2008 - ZEZELL, D.M.; ANA, P.A.; ROSA, K.; CRAIEVICH, A.; BACHMANN, L.Resumo IPEN-doc 14584 Effects of lasers on chemical composition of anamel and dentin2009 - ZEZELL, DENISE; ANA, PATRICIA; ALBERO, FELIPE; BACHMANN, LUCIANOBackground: Laser irradiation is a promising alternative for caries prevention due to the possibility of changing the microstructure of dental hard tissues. However, the chemical changes promoted by infrared lasers interaction with dental hard tissue are still unclear. This study investigated chemical and erystallographic changes on enamel and dentin after irradiation with Nd:YAG and Fr,Cr:YSGG lasers aiming caries prevention, Study: Thirty enamel and dentin slabs were obtained from bovine teeth, and wore randomly distributted into six groups: G1- unlased enamel; G2- unlased dentin; G3- enamel irradiated with Er,Cr:YSGG laser (o =2.78 ym) at 5.6 J/em? (25 mJ/pulse); Gd- dentin irradiated with Er,Cr:YSGG at 2.8 J/em? (12.5 mJ/ pulse); G5- enamel irradiated with Nd:YAG laser (> = 1.064 ym) at 84.9 J/em? (60 mJ/pulze), and G6- dentin irradiated with Nd:YAG at 84.9 J/em? (60 md/pulse). Sample surfaces were analyzed by micro-Fourier transform infrared spectroscopy (11-FTIR) at 4000-650 cm ' range and with 4 em”* resolution. After p-FTIR, samples were also evaluated by X-ray diffraction at a Synchrotron monochromatic X-ray beam (Cu-Ka, wavelength of 0.0954 nm). Results: Irradiation with Er,CAYSGG laser promoted the decrease on carbonate content of enamel. After Nd:YAG irradiation, it was observed a significant decrease (p < 0.05) of all organic content of enamel, Er,Cr:YSGG and Nd:YAG lasers promoted a significant decrease on the contents of amides 1 and carbonate of dentin. Both laser irradiations also promoted the formation of tricalcium and tetracalcium phosphates, and also a significant increase (p < 0.05) on the crystal growth of the apatite of enamel and dentin. Conclusion: In conclusion, high IR intensity laser irradiation changes mainly the organic and carbonate contents of both enamel and dentin, as well promotes an increase in crystallite sizes and the formation of new crystallographic phases. These changes can be correlated with the mechanism of the improved resistance of these tissues to demineralization observed in our previous studies.Resumo IPEN-doc 09219 Efeito da irradiacao de superficies radiculares com laser de Er:YAG e diodo - analise termica e morfologica2002 - THEODORO, L.H.; HAYPEK, P.; BACHMANN, L.; GARCIA, V.G.; ZEZELL, D.M.; SAMPAIO, J.E.C.Resumo IPEN-doc 10339 Estudo das alteracoes estruturais dos tecidos dentais quando irradiados com lasers emissores no infravermelho2001 - BACHMANN, L.; ZEZELL, D.M.; CRAIEVICH, A.F.Resumo IPEN-doc 16068 Alteracoes quimicas e estruturais na dentina irradiada com lasers de alta intensidade para prevencao da carie radicular2010 - ANA, P.A.; GOULART, V.P.; BACHMANN, L.; ZEZELL, D.M.Resumo IPEN-doc 07941 Thermal effects during in vitro intracanal application of Er:YAG laser1998 - CECCHINI, S.C.M.; ZEZELL, D.M.; BACHMANN, L.; PINOTTI, M.; NOGUEIRA, G.E.C.; EDUARDO, C.P.Resumo IPEN-doc 08037 Analise das alteracoes nas propriedades morfologicas na superficie de esmalte dental irradiado com laser de neodimio para prevencao de caries2000 - PEREIRA, A.A.; BACHMANN, L.; ROSSI, W.; ZEZELL, D.M.
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