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Updated: Feb 4, 2026

Atom Probe Tomography Analysis of Exsolved Mineral Phases
Published on: October 25, 2019
Porosity analysis of mineral trioxide aggregate Fillapex and BioRoot cements for use in endodontics using
Fabricio Guerrero1, Esther Berástegui1, Karla Aspiazu2
1Department of Odonto-Stomatology, Faculty of Dentistry, University of Barcelona, Barcelona, Spain.
Aim:
The purpose of this study is to compare the porosity of two sealant cements, mineral trioxide aggregate (MTA) Fillapex® and BioRoot® root canal sealer (RCS). These samples were analyzed using microcomputed tomography.
Materials And Methods:
Sixteen samples were used in the study that were divided according to the composition of the materials used. MTA Fillapex® (n = 8) and BioRoot® RCS (n = 8) were the samples prepared according to the manufacturer's instructions. They were placed in silicone molds of 5 ± 0.1 mm in height and an internal diameter of 5 ± 0.1 mm; 24 h after its preparation, the samples were scanned through a microcomputed tomography, and the porosity results were analyzed statistically by independent t-tests.
Results:
It is evident that MTA Fillapex® has better porosity properties than BioRoot® RCS. The results of the study quantify a smaller number of pores per surface, a smaller volume in each pore per mm3, and a lower total porosity present in samples of MTA Fillapex® unlike BioRoot® RCS samples which is larger in both.
Conclusions:
The results obtained in computerized microtomography endodontic biomaterial samples concluded that MTA Fillapex® has a lower porosity than BioRoot® RCS.
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