DYE PENETRATION IN ROOT CANALS FILLED WITH AH26 IN DIFFERENT CONSISTENCIES

It is recommended that the powder to liquid ratio of AH26 be very high and that the mixture be warmed to decrease viscosity before insertion into the root canal. In this study, the effectiveness of the powder t o liquid ratio and temperature were assessed using 60 root canals of m axillary central incisors randomly divided into four groups after thei r cleaning and shaping. The teeth were obturated by either lateral con densation or the single-cone technique using AH26 warmed or at room te mperature. After exposure to basic fuchsin, the teeth were embedded an d cross-sectioned using a diamond saw. The dye penetration was measure d microscopically and reported as a percentage of the total circumfere nce of the filling of each slice using a goniometric eye-piece. After statistical analysis, it was concluded that AH26 in combination with l ateral condensation leads to less leakage when used at room temperatur e.