Técnicas termoplásticas ou técnica de cone único ao usar cimentos à base de silicato tricálcico? O que os clínicos devem saber sobre a qualidade da obturação do canal radicular: uma revisão integrativa

Abstract

The filling of the root canal system (SCR) is an important step in endodontic treatment and aims to obtain a three-dimensional sealing of the root canal spaces in order to preventing bacterial contamination. For this, the selection of an appropriate sealer must be performed synchronously with the choice of the root canal filling technique. This study aims, through an integrative review, evaluate the quality of filling the SCR by comparing thermoplastic techniques with the single-cone (SC) technique. For this, the Medline/PubMed, Scopus, Web of Science and Virtual Health Library (VHL) online databases were used for the literature review. Eligibility criteria comprised articles available in full on the researched databases, in English, and content addressing the quality of the filling considering the penetration of sealer into the dentinal tubules, and/or formation of voids/gaps and comparison of the two techniques mentioned associated with tricalcium silicate-based sealer. A total of 1699 articles were found. After duplicate removal, 828 articles were selected. After reading the abstracts, full texts and applying the inclusion criteria, ten articles in total were included. Data extracted from the studies were discussed and tabulated to allow comparison of desired factors. Concerning the formation of gaps/voids, the thermoplastic techniques showed better results than the SC technique in 3 articles. On the other hand, 2 articles reported no statistical difference between the tested technique. In addition, in relation to the penetration of tricalcium silicate-based sealer in the dentinal tubules, of the 5 articles selected, in 4 there was no significant difference between the tested techniques and only one study showed better penetration of the sealer when using thermoplastic techniques. Given the above, it can be seen that, regardless of the technique used, the tricalcium silicate-based sealer proved to be promising during the SCR obturation step.