In vitro Fluoride Uptake by Intra–Orally Aged and Contaminated Glass Ionomer Cement

This study evaluated, in vitro, marginal microleakage in class II restorations confected with the glass ionomer cement Vitremer and with the composite resins Ariston pHc and P-60. The aims of the study were to assess the effect of thermocycling on those materials and to evaluate two methods utilized in the analysis of dye penetration. Sixty premolars divided in three groups were utilized; the teeth had proximal cavities whose cervical walls were located 1 mm below the cementoenamel junction. Half of the test specimens from each group underwent thermocycling; the other half remained in deionized water, at 37ºC. The specimens were immersed, for 24 hours, in a basic 0.5% fuchsin solution at 37ºC. For the analysis of microleakage, the specimens were sectioned in a mesio-distal direction, and the observation was carried out with the software Imagetools. The results were evaluated through the 2-way ANOVA and through the Tukey’s test. All groups presented marginal microleakage. The smallest values were obtained with Vitremer, followed by those obtained with the composite resins P-60 and Ariston pHc. There was no statistically significant difference caused by thermocycling, and the method of maximum infiltration was the best for detecting the extension of microleakage.

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In vitro and in vivo evaluations of glass-ionomer cement containing chlorhexidine for Atraumatic Restorative Treatment

Journal of Applied Oral Science ◽

10.1590/1678-7757-2016-0195 ◽

2017 ◽

Vol 25 (5) ◽

pp. 541-550 ◽

Cited By ~ 9

Author(s):

Cristiane Duque ◽

Kelly Limi Aida ◽

Jesse Augusto Pereira ◽

Gláucia Schuindt Teixeira ◽

Angela Scarparo Caldo-Teixeira ◽

...

Keyword(s):

Glass Ionomer Cement ◽

Atraumatic Restorative Treatment ◽

Glass Ionomer ◽

Restorative Treatment ◽

Ionomer Cement

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Marginal Leakage of Endodontic Temporary Restorative Materials around Access Cavities Prepared with Pre-Endodontic Composite Build-Up: An In Vitro Study

Materials ◽

10.3390/ma13071700 ◽

2020 ◽

Vol 13 (7) ◽

pp. 1700

Author(s):

Atsushi Kameyama ◽

Aoi Saito ◽

Akiko Haruyama ◽

Tomoaki Komada ◽

Setsuko Sugiyama ◽

...

Keyword(s):

Zinc Oxide ◽

Resin Composite ◽

Glass Ionomer Cement ◽

In Vitro Study ◽

Restorative Material ◽

Glass Ionomer ◽

Zinc Oxide Eugenol ◽

Restorative Materials ◽

Ionomer Cement

This study aimed to examine the marginal seal between various commercial temporary restorative materials and exposed dentin/built-up composite. Sixty bovine incisors were cut above the cemento-enamel junction, and half of the dentin was removed to form a step, which was built up using flowable resin composite. The root canals were irrigated, filled with calcium hydroxide, and sealed using one of six temporary sealing materials (hydraulic temporary restorative material, temporary stopping material, zinc oxide eugenol cement, glass-ionomer cement, auto-cured resin-based temporary restorative material, and light-cured resin-based temporary restorative material) (n = 10 for each material). The samples were thermocycled 500 times and immersed in an aqueous solution of methylene blue. After 2 days, they were cut along the long axis of the tooth and the depth of dye penetration was measured at the dentin side and the built-up composite side. For the margins of the pre-endodontic resin composite build-up, the two resin-based temporary restorative materials showed excellent sealing. Hydraulic temporary restorative material had a moderate sealing effect, but the sealing effect of both zinc oxide eugenol cement and glass-ionomer cement was poorer.

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