Avaliação clínica da efetividade do clareamento em consultório de dentes polpados, com e sem o condicionamento ácido prévio do esmalte / Clinical evaluation of the effectiveness of in-office whitening tooth pulp, with and without prior acid etching of enamel

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

06/06/2011

RESUMO

The aim of this study was to compare the in vivo effectiveness of in-office bleaching technique with hybrid light source (LED and laser therapy), with and without prior acid etching of enamel, depending on the degree of change and stability of color and sensitivity . Upon being informed of the aims of the study was thirty-four volunteers were selected according to the criteria for inclusion and exclusion. Initially, the volunteers received a complete prophylaxis gum above, then evaluation was made of the color with the spectrophotometer Easyshade Vita (Vita). Patients were randomly divided into two groups of 17, according to the use or absence of light source, and always in the hemi-arch top and bottom right was performed enamel etching with phosphoric acid at 37% for 15s, prior to application of whitening gel. In both groups activated dental arches were treated with the whitening gel base to 35% PH (Lase Peroxide - DMC equipment) and after 1 min., Light-based hybrid LED / Laser (II Whitening Lase - DMC Equipment) was applied for 3 min. simultaneously in all the anterior teeth. Again it was made a 1 min., In order to cool the gel and then activated with the new light for 3 min. In groups not activated, the gel was applied for 3 x 15 min. Patients returned after 24 hours, 1 week and 1 month for new evaluations. The results were submitted to 4-way and 3-way ANOVA, Tukey test at significance level of 5%, Wilcoxon and Mann-Whitney Test. In group I, the use of light and acid etching generated the need for a shorter time (31.\ 5\"), application of the gel, which in hemiarch not conditioned (group II) that was (34\ .3\"), these times were statistically significant when compared to hemi-arch non-conditioned (group II) and groups III and IV (45\ ), demonstrating the advantage of the combination of these two resources in office whitening.

ASSUNTO(S)

dental whitening estética esthetics hydrogen peroxide peróxido de hidrogênio sensibilidade sensibility clareamento dental

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