TARSO MUNHAI MARRACHINE
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Resumo IPEN-doc 09143 Laser-etched conditioning of dental hard tissues using the Er:YAG laser and the COsub(2) laser2002 - MARRACCINI, T.M.; WIGDOR, H.A.; TURBINO, M.L.; STABHOLTZ, A.; ZEZELL, D.M.Resumo IPEN-doc 08040 Morfological modification in the enamel with dye-assisted diode laser (960nm) irradiation2000 - OLIVEIRA, M.V.; WETTER, N.U.; BOARI, H.G.D.; ZEZELL, D.M.; MARRACCINI, T.M.; EDUARDO, C.P.Resumo IPEN-doc 08032 Estudo in vitro da ablacao dos tecidos duros dentais com laser COsub(2) de 9.6 micrometers2000 - MARRACCINI, T.M.; ZEZELL, D.M.; OLIVEIRA, M.V.; EDUARDO, C.P.; WIGDOR, H.A.Resumo IPEN-doc 07949 Estudo in vitro das alteracoes morfologicas do esmalte dental irradiados com o laser de diodo 960nm: analise de microscopia eletronica de varredura2000 - OLIVEIRA, M.V.; WETTER, N.U.; ZEZELL, D.M.; BOARI, H.G.D.; MARRACCINI, T.M.; EDUARDO, C.P.Dissertação IPEN-doc 08291 Artigo IPEN-doc 11589 Morphological evaluation of enamel and dentin irradiated with 9.6 microns COsub(2) and 2.94 microns Er:YAG lasers2005 - MARRACCINI, T.M.; BACHMANN, L.; WIGDOR, H.A.; WALSH JUNIOR, J.T.; STABHOLTZ, A.; ZEZELL, D.M.Artigo IPEN-doc 11595 Enamel and dentin irradiation with 9.6 micros COsub(2) and 2.94 microns Er:YAG lasers2006 - MARRACCINI, T.M.; BACHMANN, L.; WIGDOR, H.A.; WALSH JUNIOR, J.T.; TURBINO, M.L.; STABHOLTZ, A.; ZEZELL, D.M.: Background and objective: The objective of this study was to evaluate the bond strength between a composite resin and dental hard tissues, which have been previously irradiated with an Er:YAG (2.94 µm) or CO2 (9.6 µm) laser. Materials and methods: A total of 156 bovine teeth were divided into 6 groups: Group 1 – Enamel control: acid etched enamel (Single Bond); Group 2 – Dentin control: acid etched dentin (Single Bond); Group 3 – Irradiated enamel (CO2 laser – 3 W) followed by acid etching; Group 4 – Irradiated dentin (CO2 laser – 3 W) followed by acid etching; Group 5 – Irradiated enamel (Er:YAG laser – 0.16 W) followed by acid etching; Group 6 – Irradiated dentin (Er:YAG laser – 0.16 W) followed by acid etching. Results: Treatment only with acid etching and also the Er:YAG laser irradiation followed by acid etching showed the highest bond strength value while the CO2 laser irradiation followed by acid etching treatment produces the lowest bond strength values in both tissues. Conclusion: Acid etching of non-irradiated and Erbium YAG laser irradiated tissues produces better adhesion than acid etching of CO2 laser irradiated surfaces. Dentin surface after CO2 laser irradiation (150 mJ, 20 Hz, 212.2 J/cm2, 3 W) followed by acid etching, the smooth melting pattern is removed and the dentin tubules are exposed with a similar aspect as the acid etching only.