“Endodontic Sealers”: Current Concepts and Comparative Analysis

Abstract

The main aim of root canal therapy is the removal of microbial contaminants in conjunction with the total closure of the root canal system. Root canal sealers along with solid core material plays a major role in achieving the three dimensional sealing of the root canal system. These sealers are binding agents which are used to adapt the rigid gutta-percha to canal walls and to fill up the voids, accessory canals and irregularities within the canal. Root canal sealers, although used only as adjunctive materials in the obturation of root canals, have been shown to influence the outcome of endodontic treatment. A perfect combination of sealing ability and biocompatibility is what an ideal root canal sealer should possess. This article discusses the current concepts in the usage of different sealers in endodontic therapy and their comparison in order to draw some clinical inferences.

Comparison of Apical Leakage in Root Canal Obturation Using Bioceramic and Polydimethylsiloxane Sealer (<i>In Vitro</i>)

“…Gutta-percha is a rigid material that will undergo shrinkage and create space that can be used as an access way for bacteria. Thus root canal sealer is vital to fill in the space [5]. Sealer applied in the canal space will fill in the imperfections and increase the adaptability of the filler to the root canal wall [6].…”

“…However, it is proven difficult clinically to create a monoblock bonding in the root canal obturation. Sealer acts as the essential material to form bonding with the root canal wall in order to create the monoblock condition [5].…”

“…Therefore, the physical properties that need to be observed from a root canal sealer is its ability to adhere with the root canal wall and gutta-percha, the solubility against the body tissue fluid, and its stability after hardened. For those purposes, several new sealers had been developed to gain these properties in order to produce the best sealer [5].…”

“…Of all the various properties mentioned above, it can be concluded that both sealers have exceptional root canal sealing ability [5] GuttaFlow Bioseal. In that research, the irrigation technic was also studied [11].…”

Differences in the Potential Mutagenicity of Resin-, Silicone-, and Bioceramic-Based Sealers on Lymphocytes: A Protein Expression Analysis

“…Hence, root canal sealers must be non-toxic and contribute to the healing process of the periapical lesion [5]. Sealers should have a bacteriostatic effect and be biocompatible, causing no irritation to the periapical tissues [6].…”