AvaliaÃÃo da microinfiltraÃÃo em obturaÃÃes retrÃgradas sob microscopia clÃnica x olho descoberto: estudo in vitro

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The arised of new tecnology has brought many promises to wealth professionals, mainly dentistry. The surgery operating microscopy has been even more useful in several dentistry areas and in endodontics is necessary researches to check if the advantages are really reached. This work is about retrofilling leaking that was done under clinical microscopy in two magnifications (16X and 25X), comparing this procedures to those which were done under naked eye. It was studied 36 (thirty-six) human teeth, first superior molars which had its mesio-vestibular root cut, divided into three groups of 12 (twelve) teeth that were retro instrumentated at 3mm deep with inserts S13 RD and S13 LD that were set in a ultrasonic device MULTI-SONIC (GNATUS) and retrofilled with zinc oxide and Eugenol, IRM (Dentsply). The roots, after been retrofilled, were impermeabilized with finger enamel (NIASI) but the periforaminal area within 1mm and after the ciment was dry they were put to a 2% Metilen Blue dye for 24 hours. Them they were cut in a transverse way at 4mm far from the root apex, and analised if there was any die infiltration or not. The results were taken into observation by square-qui test and the following results were drawn: the infiltration in the procedures that were done under naked eye had an average of 75%, with an magnification of 16X it was 33%; and 25X it was 25%. The results drawn through microscopy when compared to those which were done under naked eye was estatistic significant and that did not happen when compared to those magnification between 16X and 25X, the results reached are better than only naked eye use

ASSUNTO(S)

microscopia operatÃria endodontic operatory microscopy endodontia retrobturaÃÃo retrofilling odontologia

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