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).
Cite this paper
Ferreira, M. , Abrantes, M. , Ferreira, H. , Carrilho, E. and Botelho, M. (2013) Comparison of the apical seal on filled root canals with Topseal® vs MTA Fillapex® sealers: A quantitative scintigraphic analysis. Open Journal of Stomatology, 3, 128-132. doi: 10.4236/ojst.2013.32024.
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