Clinical utility properties of new endodontic silicate-based sealers: a systematic review

ABSTRACT

Introduction: Filling in the root canal system plays a key role in the success of endodontic treatment. New silicate-based sealers have recently been introduced on the market to improve the properties of sealers used in these treatments. Before performing endodontic treatment, it is always useful to know the properties of different sealers. Objectives: The aim of this study was to review the literature and compare the clinically useful properties of new silicate-based sealers with those 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 Cochrane Library) combining MeSH (Medical Subject Headings) and free terms. A manual electronic search was also performed. The clinically useful properties selected were discolouration, sealing capacity, radiopacity, setting time and solubility. Results: Of the 224 potential studies obtained, 20 were selected for reading of the full text. Another 4 studies were selected after manual electronic searching of which 2 were excluded, leaving 22 studies for inclusion in the review. The following physical properties were analysed 2 for tooth discolouration; 4 for sealing ability; 11 for radiopacity; 9 for setting time; and 12 for solubility; 9 of the articles evaluated several properties. Conclusions: No differences in tooth discolouration were observed between silicate-based and resin sealers. 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; with some of the silicate-based sealers having higher solubility than the resin-based. (AU)