"Efeito de fotoativadores utilizados na irradiação laser intracanal" / Effects of the photosensitizers used during the intracanal laser irradiation.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The present study had as objective to evaluate the dental staining after the root canal treatment when it¡¯s used the photodynamic therapy, using the dies methylene blue and orto toluidina blue as photosensitizers, through the RGB and K color system from the software Adobe Photoshop. Twenty human single root teeth had its roots canals prepared by the seriated technique using the endodontic instruments plus Endo-PTC and Dakin. Three experimental groups were formed: Group C: dye in its liquid form; Group E: dye associated to the Endo-PTC cream and Group CE: dye in its liquid form with final irrigation of the Dakin plus Endo¨CPTC for 15 minutes. The color measure was taken before (L0), immediately after (L1) and ten days after the laser irradiation. The statistical analysis performed using the Wilcoxon text proves that the results of the specimens of the E Group on the interactions L1-L2 and L0-L2 didn¡¯t have any significant differences. Based on the results obtained it was possible to conclude that: based on the experimental design that performed the traditional endodontic technique, all the activating dyes tested altered the values of K. After carrying out an analysis of the chromatic alteration results according to K values, the best results were observed in specimens of group methylene E and group toluidine E, both of which presented no statistically significant difference for the interaction L0-L1 (p ¡Ü 5%).

ASSUNTO(S)

photodynamic therapy laser dyes terapia fotodinâ mica corantes laser ntico root canal treatment tratamento endodô

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