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Effect of a calcium silicate cement and experimental glass ionomer cements containing calcium orthophosphate particles on demineralized dentin.
Vilela, Handially S; Trinca, Rafael B; Alves, Tarsila V M; Scaramucci, Tais; Sakae, Leticia O; Mariano, Flávia S; Giannini, Marcelo; Silva, Flávia R O; Braga, Roberto R.
Afiliación
  • Vilela HS; Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil.
  • Trinca RB; Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil.
  • Alves TVM; Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil.
  • Scaramucci T; Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil.
  • Sakae LO; Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil.
  • Mariano FS; Department of Restorative Dentistry, School of Dentistry, University of Campinas, São Paulo, Brazil.
  • Giannini M; Department of Restorative Dentistry, School of Dentistry, University of Campinas, São Paulo, Brazil.
  • Silva FRO; Institute of Energy and Nuclear Research, University of São Paulo, São Paulo, Brazil.
  • Braga RR; Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil. rrbraga@usp.br.
Clin Oral Investig ; 28(1): 97, 2024 Jan 15.
Article en En | MEDLINE | ID: mdl-38225525
ABSTRACT

OBJECTIVE:

The study aims to evaluate the effect of a glass ionomer cement (GIC; Fuji 9 Gold Label, GC) with added calcium orthophosphate particles and a calcium silicate cement (CSC; Biodentine, Septodont) regarding ion release, degradation in water, mineral content, and mechanical properties of demineralized dentin samples.

METHODS:

GIC, GIC + 5% DCPD (dicalcium phosphate dihydrate), GIC + 15% DCPD, GIC + 5% ß-TCP (tricalcium phosphate), GIC + 15% ß-TCP (by mass), and CSC were evaluated for Ca2+/Sr2+/F- release in water for 56 days. Cement mass loss was evaluated after 7-day immersion in water. Partially demineralized dentin disks were kept in contact with materials while immersed in simulated body fluid (SBF) at 37 °C for 56 days. The "mineral-to-matrix ratio" (MMR) was determined by ATR-FTIR spectroscopy. Dentin hardness and elastic modulus were obtained by nanoindentation. Samples were observed under scanning and transmission electron microscopy. Data were analyzed by ANOVA/Tukey test (α = 0.05).

RESULTS:

Ca2+ release from CSC and GIC (µg/cm2) were 4737.0 ± 735.9 and 13.6 ± 1.6, respectively. In relation to the unmodified GIC, the addition of DCPD or ß-TCP increased ion release (p < 0.001). Only the dentin disks in contact with CSC presented higher MMR (p < 0.05) and mechanical properties than those restored with a resin composite used as control (p < 0.05). Mass loss was similar for GIC and CSC; however, the addition of DCPD or ß-TCP increased GIC degradation (p < 0.05).

CONCLUSION:

Despite the increase in ion release, the additional Ca2+ sources did not impart remineralizing capability to GIC. Both unmodified GIC and CSC showed similar degradation in water. CLINICAL RELEVANCE CSC was able to promote dentin remineralization.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fosfatos de Calcio / Calcio / Silicatos / Compuestos de Calcio / Cementos de Ionómero Vítreo Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fosfatos de Calcio / Calcio / Silicatos / Compuestos de Calcio / Cementos de Ionómero Vítreo Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania