Propiedades físicas de utilidad clínica de los nuevos cementos selladores de endodoncia a base de silicatos. Revisión bibliográfica

Resum

Introduction: In the endodontic treatment success, the fi lling of the root canal system plays a key role. To improve properties of the sealers used in these treatments, new silicate-based sealers have recently been introduced into the market. Therefore, when performing the endodontic treatment, it is useful to know the physical properties of the different sealers. Objectives: The aim of the present study was to review the literature and compare the clinically useful physical properties of the new silicate-based cements with the physical properties of conventional epoxy resin-based cements. Methods: After establishing the adapted research question, a literature review was carried out in two databases (Medline via Pubmed and Wiley Library via Chrocane Library) combining MeSH (Medical Subject Headings) and free terms. In addition, a manual electronic search was performed. The clinically useful physical properties selected were discolouration, sealability, radiopacity, setting time and solubility. Results: A total of 224 potential studies were obtained and 20 were selected for full text reading. Additionally, 4 studies were selected through electronic handsearching. After exclusion of 2 studies, 22 studies were fi nally included in the review, which analyzed the following physical properties: 2 tooth discolouration; 4 sealing ability; 11 radiopacity; 9 setting time; and 12 solubility. 9 of the selected articles evaluated several properties. Conclusions: No differences in tooth discolouration were observed between silicate-based sealers and resin sealers. Similarly, no differences in sealing ability were observed in most of the studies consulted. All sealers analysed showed radiopacity values within the recommended standards. Both, setting time and solubility, depended on the type of sealer evaluated. Some of the silicate-based sealers presented higher solubility compared to the resin-based sealers.