Comparison of the physical properties of glass ionomer modified with silver phosphate/hydroxyapatite or titanium dioxide nanoparticles: in vitro study
Por:
Pérez-Castro, B, Flores-Ledesma, A, Rubio-Rosas, E, Teutle-Coyotecatl, B, Flores-Ferreyra, BI, Argueta-Figueroa, L, Moyaho-Bernal, MD
Publicada:
1 ene 2024
Resumen:
Glass ionomer cements (GICs) are the common materials employed in pediatric dentistry because of their specific applications in class I restorations and atraumatic restoration treatments (ART) of deciduous teeth in populations at high risk of caries. Studies show a limited clinical durability of these materials. Attempts have thus been made to incorporate nanoparticles (NPs) into the glass ionomer for improving resistance and make it like the tooth structure. An in vitro experimental study was conducted using the required samples dimensions and prepared based on the test being carried out on the three groups with or without the modification of light-cured glass ionomer. Samples were grouped as follows: control group (G1_C), 2% silver phosphate/hydroxyapatite NPs group (G2_SPH), and 2% titanium dioxide NPs group (G3_TiO2). The physical tests regarding flexural strength (n = 10 per group), solubility (n = 10 per group), and radiopacity (n = 3 per group) were performed. The data were analyzed by Shapiro Wilks test, and one-way analysis of variance (one-way ANOVA), and multiple comparisons by post hoc Tukey's test. The p-value of < 0.05 was considered significant. No statistically significant difference was observed between the control group (G1_C) and (G2_SPH) (p = 0.704) in the flexural strength test, however differences were found between G2_SPH and G3_TiO2 groups, ANOVA (p = 0.006); post hoc Tukey's test (p = 0.014). Pertaining to the solubility, G2_SPH obtained the lowest among the three groups, ANOVA (p = 0.010); post hoc Tukey's test (p = 0.009). The three study groups obtained an adequate radiopacity of >1 mm Al, respectively. The resin-modified glass ionomer cement (RMGIC) was further modified with 2% silver phosphate/hydroxyapatite NPs to improve the physical properties such as enhancing the solubility and sorption without compromising the flexural strength and radiopacity behavior of modified RMGIC. The incorporation of 2% titanium dioxide NPs did not improve the properties studied.
Filiaciones:
Pérez-Castro, B:
Meritorious Autonomous Univ Puebla, Fac Stomatol, Puebla 72410, Puebla, Mexico
Flores-Ledesma, A:
Meritorious Autonomous Univ Puebla, Fac Stomatol, Puebla 72410, Puebla, Mexico
Rubio-Rosas, E:
Meritorious Autonomous Univ Puebla, Innovat & Knowledge Transfer Directorate DITCo, Puebla 72570, Puebla, Mexico
Teutle-Coyotecatl, B:
Meritorious Autonomous Univ Puebla, Fac Stomatol, Puebla 72410, Puebla, Mexico
Flores-Ferreyra, BI:
Meritorious Autonomous Univ Puebla, Fac Stomatol, Puebla 72410, Puebla, Mexico
Autonomous Univ Mexico State, Sch Dent, Toluca 50130, Mexico
Argueta-Figueroa, L:
CONAHCYT, Natl Technol Inst Mexico, Toluca Technol Inst, Metepec 52149, Mexico
Moyaho-Bernal, MD:
Meritorious Autonomous Univ Puebla, Fac Stomatol, Puebla 72410, Puebla, Mexico
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