树脂改性玻璃离子水门汀的断裂韧性

Fracture toughness of resin-modified glass ionomers.

作者信息

Kovarik R E, Muncy M V

机构信息

Chandler Medical Center, Department of Oral Health Practice, University of Kentucky, College of Dentistry, Lexington, KY 40536-0084, USA.

出版信息

Am J Dent. 1995 Jun;8(3):145-8.

PMID:8599593

Abstract

PURPOSE

To measure and compare the fracture toughness of a multi-purpose resin composite, four light-cured glass ionomers, one light-cured resin ionomer, and two silver-containing glass ionomers.

MATERIALS AND METHODS

Ten specimens were fabricated for each of the eight materials: Herculite XRV, Fuji II LC, Photac-Fil, Vitrebond, Photac-Bond, VariGlass VLC, Ketac-Silver, and Miracle Mix. All materials were handled according to manufacturers' instructions during specimen fabrication, stored in 100% humidity for 2 weeks, and tested wet in a universal testing machine.

RESULTS

The mean fracture toughness values (MPa . m(0.5) + or - S.D.) were: Herculite XRV = 1.17 + or - 0.09, Fuji II LC = 1.37 + or - 0.10, Photac-Fil = 1.27 + or - 0.08, VariGlass = 0.90 + or - 0.07, Vitrebond = 0.88 = or - 0.06, Photac-Bond = 1.09 + or - 0.09, Ketac-Silver = 0.51 + or - 0.08, and Miracle Mix = 0.30 + or - 0.07. There was a significant difference in the means (ANOVA P<0.0001). Fuji II LC and Photac-Fil were significantly tougher than any of the other materials (Tukey's HSD test P<0.01).

摘要

目的

测量并比较一种多用途树脂复合材料、四种光固化玻璃离子水门汀、一种光固化树脂离子水门汀以及两种含银玻璃离子水门汀的断裂韧性。

材料与方法

为八种材料中的每一种制备十个样本：Herculite XRV、Fuji II LC、Photac-Fil、Vitrebond、Photac-Bond、VariGlass VLC、Ketac-Silver和Miracle Mix。在样本制备过程中，所有材料均按照制造商的说明进行处理，在100%湿度下储存2周，并在万能试验机中进行湿态测试。

结果

平均断裂韧性值（MPa·m(0.5) ±标准差）分别为：Herculite XRV = 1.17 ± 0.09，Fuji II LC = 1.37 ± 0.10，Photac-Fil = 1.27 ± 0.08，VariGlass = 0.90 ± 0.07，Vitrebond = 0.88 ± 0.06，Photac-Bond = 1.09 ± 0.09，Ketac-Silver = 0.51 ± 0.08，Miracle Mix = 0.30 ± 0.07。均值存在显著差异（方差分析P<0.0001）。Fuji II LC和Photac-Fil比其他任何材料都显著更坚韧（Tukey's HSD检验P<0.01）。