TITLE:
Comparison of the apical seal on filled root canals with Topseal® vs MTA Fillapex® sealers: A quantitative scintigraphic analysis
AUTHORS:
Manuel Marques Ferreira, Margarida Abrantes, Hugo Ferreira, Eunice Virgínia Carrilho, Maria Filomena Botelho
KEYWORDS:
Microleakage; Nuclear Medicine; Obturation; Thermafil; Topseal; MTA Fillapex
JOURNAL NAME:
Open Journal of Stomatology,
Vol.3 No.2,
May
28,
2013
ABSTRACT: This study investigated the microleakage of two different root canal obturation systems, using the nuclear medicine approach, with
sodium pertechnetate 99mTc. Twenty six single-rooted extracted teeth
were selected. The crowns were sectioned to obtain15 mmlong root segments and each tooth was prepared using rotary ProFile? instruments. The roots were divided into 2
experimental groups and two control groups. Twenty root canals were filled,
using Thermafil? and Topseal? or MTA Fillapex? as a sealer. On the 7th and the 28th day the apices were submersed in a solution
of 99mTc-Pertechnetate during 3 hours. The radioactivity was counted
using a gamma camera. Although apical leakage on the 7th day in the Topseal group was reduced compared with RealSeal1, with a statistical significant difference (p = 0.057), on the 28th day, the MTA
Fillapex increased the sealing properties (p = 0.017).