Strontium- and bioactive glass-enriched dentin repair cement: Mechanical performance and physicochemical characteristics

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dc.contributor.authorTavella-Silva, Nathalia Cristina
dc.contributor.authorRaucci, Larissa Moreira Spinola Castro
dc.contributor.authorPolizeli, Victor Miguel
dc.contributor.authorMiranda, Carlos Eduardo Saraiva
dc.contributor.authorOliveira, Ivone Regina de
dc.contributor.authorRaucci Neto, Walter
dc.date.accessioned2025-07-08T12:27:11Z
dc.date.available2025-07-08T12:27:11Z
dc.date.issued22025
dc.description.abstractThe aim of this study was to evaluate the effect of strontium (Sr2+) and varying concentrations of bioactive glass (BG) on the physicochemical and mechanical properties of calcium aluminate cement (CAC). The experimental groups included: control (CAC); CAC with 5 wt% BG (CAC5); CAC with 10 wt% BG (CAC10); CAC with 1 wt% Sr2+ (CAC-Sr); CAC5 with 1 wt% Sr2+ (CAC5-Sr); and CAC10 with 1 wt% Sr2+ (CAC10-Sr). Setting time (ST), solubility (SL), pH, electrical conductivity (CON), total dissolved solids (TDS), calcium ion release (Ca2+), radiopacity (RAD), surface roughness (SR), and bond strength (BS) were evaluated using cement discs. ST and RAD were assessed in freshly prepared samples. SL was determined by measuring the weight change of the specimens after seven days of water immersion. pH, CON, TDS, and Ca2+ were quantified in the immersion solutions. SR was measured after 7 and 28 days in water and phosphate-buffered saline (PBS), and BS was evaluated using the push-out test. Data were analyzed using one-way ANOVA and Tukey’s post hoc test (α = 0.05). BG incorporation significantly reduced ST, whereas Sr2+ had no effect. All groups showed mass gain. No significant differences in pH were observed among groups. CAC and CAC5 exhibited higher Ca2+ release than CAC-Sr and CAC5-Sr (p < 0.05). No differences in RAD were found. BS increased with the addition of BG and Sr2+, except in the CAC10-Sr group. Sr2+ enhanced BS in CAC (p < 0.001), but not in CAC5. Failure modes were predominantly mixed and cohesive. In conclusion, BG improved bond strength and reduced setting time, while Sr2+ had no significant effect on the physicochemical properties of the cement.
dc.description.physical9 p.
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.uriCapes (Financing Code 001)
dc.format.mimetypePDF
dc.identifier.affiliationUniversidade de Ribeirão Preto
dc.identifier.affiliationUniversidade de São Paulo
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.bibliographicCitationTAVELLA-SILVA, N. C. et al. Strontium- and bioactive glass-enriched dentin repair cement: Mechanical performance and physicochemical characteristics. Ceramics International,
dc.identifier.doi10.1016/j.ceramint.2025.05.316
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/1013
dc.language.isoen_US
dc.publisherElsevier
dc.rights.holderElsevier
dc.subject.keywordCalcium aluminate cement
dc.subject.keywordBioactive glass
dc.subject.keywordStrontium
dc.subject.keywordPhysicochemical properties
dc.subject.keywordMechanical performance
dc.titleStrontium- and bioactive glass-enriched dentin repair cement: Mechanical performance and physicochemical characteristics
dc.typeArtigos de Periódicos

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