Properties of BioRoot RCS, a tricalcium silicate endodontic sealer modified with povidone and polycarboxylate

Abstract

Siboni F, Taddei P, Zamparini F, Prati C, Gandolfi MG. Properties of BioRoot RCS, a tricalcium silicate endodontic sealer modified with povidone and polycarboxylate.International Endodontic Journal, 50, e120-e136, 2017.Aim To evaluate the chemical and physical properties of a tricalcium silicate root canal sealer containing povidone and polycarboxylate (BioRoot RCS), a calcium silicate MTA-based sealer containing a salicylate resin (MTA Fillapex), a traditional eugenolcontaining sealer (Pulp Canal Sealer) and an epoxy resin-based root canal sealer (AH Plus). Methodology Calcium release, pH, setting time, water sorption, volume of open pores, volume of impervious portion, apparent porosity and weight loss were measured. The ability to nucleate calcium phosphates (CaP) after ageing 28 days in a simulated body fluid was evaluated using ESEM-EDX and microRaman spectroscopy. Data were statistically analysed (P = 0.05) using one-way ANOVA (setting time, radiopacity, solubility, water sorption, porosity) or two-way ANOVA (ion release tests). Results BioRoot RCS had a final setting time of 300 min and adequate radiopacity (5.2 mm Al). It demonstrated the highest (P < 0.05) and more prolonged ability to release calcium ions (721 ppm at 3 h) and to increase the pH (11-12) (P < 0.05); Btype carbonated apatite deposits were found on aged BioRoot RCS (biointeractivity-related CaP-forming ability). A final setting time of 270 min and good calcium release (17.4 ppm at 3 h) were measured for MTA Fillapex; apatite deposits were present on aged samples. No calcium release and no alkalizing activity were measured for Pulp Canal Sealer and AH Plus; no CaP nucleation was detected on aged Pulp Canal Sealer, and some apatite deposits were found on aged AH Plus (chemi/physisorption-related CaP-deposition). Higher and significantly different (P < 0.05) porosity, water sorption and solubility were measured for the two calcium silicate sealers, especially for BioRoot RCS. Conclusions BioRoot RCS had bioactivity with calcium release, strong alkalizing activity and apatiteforming ability, and adequate radiopacity.

Effect of immersion in distilled water or phosphate‐buffered saline on the solubility, volumetric change and presence of voids within new calcium silicate‐based root canal sealers

“…On the other hand, calcium silicate‐based materials are more hydrophilic, and, therefore, more soluble (Siboni et al . ).…”

“…However, the solubility of calcium silicate materials in distilled water does not express the real condition of the materials in vivo (Siboni et al . ). On the other hand, previous studies reported reduced solubility when calcium silicate‐based materials were immersed in a simulated body fluid (Torres et al .…”

Retreatability of two hydraulic calcium silicate‐based root canal sealers using rotary instrumentation with supplementary irrigant agitation protocols: a laboratory‐based micro‐computed tomographic analysis

“…, Siboni et al . ). Bioactivity with calcium release, strong alkalizing activity, apatite‐forming ability and adequate radiopacity were reported for BioRoot RCS (Siboni et al .…”

“…Bioactivity with calcium release, strong alkalizing activity, apatite‐forming ability and adequate radiopacity were reported for BioRoot RCS (Siboni et al . ). GuttaFlow Bioseal is a hybrid cement consisting of bioactive ceramic glass in a mixture of gutta‐percha, polydimethylsiloxane, platinum catalyzer and zirconium dioxide.…”

“…The properties of hydraulic tricalcium silicate-based root canal sealers such as BioRoot RCS and the ones of hybrid calcium silicate bioceramic sealers such as GuttaFlow Bioseal have been reported previously (Akcay et al 2016, Gandolfi et al 2016, Siboni et al 2017. Bioactivity with calcium release, strong alkalizing activity, apatite-forming ability and adequate radiopacity were reported for BioRoot RCS (Siboni et al 2017). GuttaFlow Bioseal is a hybrid cement consisting of bioactive ceramic glass in a mixture of gutta-percha, polydimethylsiloxane, platinum catalyzer and zirconium dioxide.…”