Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. This micro-computed tomography micro-CT analysis in vitro study was designed to compare void volume in root canal fillings performed using the single-cone SC technique and the continuous wave condensation CWC technique with bioceramic BC sealer.
Despite the different obturation techniques, both groups exhibited voids in filled root canals. The overall mean void volume in the SC group 0. An effectively sealed root canal is crucial to ensuring the long-term success of endodontic treatments, as it prevents the movement of oral fluids and periradicular exudate from the crown to the root canal system.
This establishes a biologically favorable environment for adjacent tissues 1 , 2. In addition, a three-dimensional root canal filling without any voids or gaps effectively inhibits the growth of microorganisms that have shown resistance to chemo-mechanical debridement 3. Therefore, achieving a void-free root filling in the root canal system is extremely important for maintaining successful endodontic results.
The unique properties of BC sealers make them a useful alternative to epoxy resin sealers; they are highly hydrophilic, biocompatible, and dimensionally stable, and their setting can be adjusted to the surrounding moisture in the root canal and dentinal tubules 4 , 5. BC sealers consist mainly of calcium silicates, calcium phosphate, zirconium oxide, and tantalum oxide. These bioactive materials interact with the surrounding tissues and encourage the formation of biological crystalline structures that resemble tooth and bone apatite materials, allowing the sealer to bond to the root dentin and form a high-quality seal 6 , 7.
Moreover, BC sealers possess antimicrobial properties due to their high pH and release of calcium ion during the setting process 8.
