NOTAS DE ENDODONCIA

APOYO ACADÉMICO POR ANTOLOGÍAS

UNIDAD  12: OBTURACIÓN DE LOS CONDUCTOS RADICULARES

Dr. Ricardo Rivas Muñoz

2ª Sección de 5 que forman toda la Unidad de Obturación

EVALUATION OF APICAL LEAKAGE OF ROOT CANALS OBTURATED WITH ND: YAG LASER SOFTENED GUTTA-PERCHA, SYSTEM-B, AND LATERAL CONDENSATION TECHNIQUES

Abstract

In endodontics, a laser can be used as a heat source and gutta-percha can be softened by a laser and used in the root canals. The System-B endodontic heat source unit was designed for the obturation of the root canal system with a single continuous wave of thermoplasticized gutta-percha. The aim of this study was to compare the apical leakage of lateral condensation; Nd: YAG laser-softened gutta-percha and System-B techniques. Fifty-five extracted, single root human maxillary anterior and premolar teeth were used in this study. After working length determination, the "step-back technique" was used to pre-pare the root canals. The teeth were randomly divided into three experimental groups of 15 each and two control groups of 5 specimens each. The first group was obturated by lateral condensation, the second group by gutta-percha softened with an Nd: YAG laser, and the third group was obturated using the system-B technique. Apical leakage of the roots was evaluated by dye penetration using a stere-omicroscope after sectioning the roots. The results of the first and third groups were similar, and the results of the second group showed differences when compared with the other groups. However, vari-ance analysis revealed there was no statistically significant difference among the results. 

 Maden M, Görgül G, Tinaz AC. EVALUATION OF APICAL LEAKAGE OF ROOT CANALS OBTURATED WITH ND: YAG LASER-SOFTENED GUTTA-PERCHA, SYSTEM-B, AND LATERAL CONDENSATION TECHNIQUES. J Contemp Dent Pract 2002 Feb;(3)1: 016-026. Disponible en: http://www.thejcdp.com/issue025/index.htm

          Investigado por Victoria Guadalupe Martínez Domínguez Alumna del grupo 1522 (2008). FES Iztacala, UNAM