Toughness, bonding and fluoride-release properties of hydroxyapatite-added glass ionomer cement

Lucas, Milanita E.; Arita, Kenji; Nishino, Mizuho

doi:10.1016/s0142-9612(03)00260-6

Cited by 138 publications

(124 citation statements)

References 34 publications

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“…In this study, the fracture toughness of GICs was tested after 24 h, to ensure assessment at the peak strength of the materials (27). Fracture toughness was significantly greater for EF than for the other GICs; CFR had the second highest fracture toughness.…”

Section: Discussionmentioning

confidence: 99%

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

et al. 2014

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We compared a zinc-reinforced glass ionomer restorative material (ChemFil Rock) with three commercially available glass ionomer cements (GICs), namely, Fuji IX GP Extra, Ketac Molar Quick Aplicap, and EQUIA Fil, with respect to fracture toughness, microhardness, roughness, and abrasive wear. Fracture toughness (K IC ) was tested according to ISO 13586 (n = 10). Hardness, roughness, and abrasive wear were also tested (n = 9). Data were analyzed using the Wilcoxon rank-sum test with adjustment for multiple comparisons (α = 0.05). As compared with the other GICs ChemFil Rock exhibited a greater increase in surface roughness (P < 0.05) and lower microhardness (P < 0.01). The wear resistance of ChemFil Rock was comparable to that of the other GICs (P > 0.05). ChemFil Rock had significantly lower fracture toughness as compared with EQUIA Fil (P = 0.01) and significantly higher fracture toughness as compared with the other GICs (P < 0.02). In conclusion, as compared with the three other commercially available GICs, ChemFil Rock had intermediate fracture toughness, the lowest microhardness, and the greatest change in surface roughness. (J Oral Sci 56, 11-16, 2014)

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Section: Discussionmentioning

confidence: 99%

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

et al. 2014

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“…Therefore, the incorporation of HAp into GIC may improve both the biocompatibility of GIC and enhance its mechanical properties. We previously demonstrated that the strength of GIC is improved by addition of HAp200 particles 30) . In the present study, HAp100f particles was generated from commercial HAp100 particles, which is composed of porous particles about 240 µm in size, by mill grinding.…”

Section: Discussionmentioning

confidence: 99%

Hydroxyapatite particle characteristics influence the enhancement of the mechanical and chemical properties of conventional restorative glassionomer cement

et al. 2011

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The aims of this study were to improve the mechanical and chemical properties of conventional restorative glass ionomer cement (GIC) by adding hydroxyapatite (HAp) preparations with different characteristics, and to investigate the underlying reaction mechanisms. Fuji IX GP ® was used as the control GIC. The experimental GICs consisted of four HAp-particles with different characteristics added at 8 mass% to Fuji IX-powder. All cements were prepared by mixing with Fuji IX-liquid (P/L=3.6). Four HApparticles were analyzed, and then the mechanical strengths and the fluoride-ion-release-recharge-behaviors of five GIC groups were evaluated. The results of this study demonstrate that the addition of HAp particles with highly reactive properties such as high specific surface area can enhance the flexural strength and fluoride ion release properties of conventional restorative GIC. Our results further indicate that HAp functions as an adsorbent and an ion exchangeable agent, resulting in improved mechanical and chemical properties of GIC.

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“…Lucas et al 39) observed that fracture toughness of GIC improved when hydroxyapatite was added to the material, but with only insignificant increase in fluoride release.…”

Section: Discussionmentioning

confidence: 99%

Mechanical and Fluoride Release Properties of Titanium Tetrafluoride-added Glass-ionomer Cement

Pamir

Şen

Çelik

2005

Dental Materials Journal

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The aim of this study was to determine the fluoride-release and mechanical properties of a water-hardening glass-ionomer cement (GIC) (ChemFil Superior) when titanium tetrafluoride (TiF4) was added. Three experimental groups were prepared with TiF4 added to the liquid component of the material in concentrations of 0.5, 1, and 2 % . The control group was the original form of the cement and free of TiF4. After the specimens (4 mm in diameter X 6 mm in length) were prepared, their compressive strength, microhardness, modulus of elasticity, and fluoride release were measured. Data were analyzed using one-way analysis of variance (ANOVA) and post-hoc test (Bonferroni/Dunn correction) . The addition of TiF4 into GIC significantly reduced fluoride release from the material with the exception of 1 % TiF4 (p < 0.0083) . Compressive strengths of 0.5 and 1 % TiF4-added GICs were higher than that of the original GIC, but it was not statistically significant (p>0.05) . The differences among modulus of elasticity values of experimental and control groups were not significant (p >0.05) . Similarly, microhardness of GIC was not affected with TiF4 addition (p >0.05) .

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Toughness, bonding and fluoride-release properties of hydroxyapatite-added glass ionomer cement

Cited by 138 publications

References 34 publications

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

Hydroxyapatite particle characteristics influence the enhancement of the mechanical and chemical properties of conventional restorative glassionomer cement

Mechanical and Fluoride Release Properties of Titanium Tetrafluoride-added Glass-ionomer Cement

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