Comparison of the apical seal on filled root canals with Topseal^® vs MTA Fillapex^® sealers: A quantitative scintigraphic analysis

Manuel Marques Ferreira, Margarida Abrantes, Hugo Ferreira, Eunice Virgínia Carrilho, Maria Filomena Botelho

Department of Biophysics and Biomathematics, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
Department of Dentistry, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.

DOI: 10.4236/ojst.2013.32024                

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).

Keywords

Microleakage; Nuclear Medicine; Obturation; Thermafil; Topseal; MTA Fillapex

Conflicts of Interest

The authors declare no conflicts of interest.

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