Cattani-Lorente M A, Godin C, Meyer J M
Laboratory of Dental Materials, School of Dentistry, University of Geneva, Switzerland.
Dent Mater. 1993 Jan;9(1):57-62. doi: 10.1016/0109-5641(93)90107-2.
The present study compared the compressive, tensile and flexural strengths of 26 commercial glass ionomer cements, which were evaluated 24 h after the beginning of the setting reaction. In order to give a global estimation of their overall strength, a coefficient was attributed to each glass ionomer cement. This strength coefficient provided a ranking of the tested materials. The highest scores were obtained by the restorative glass ionomers; however, these materials exhibited lower mechanical properties than the more classic restorative materials such as amalgams or composites. The results also showed a large scattering of the mechanical properties among the luting and lining glass ionomer cements. The creep behavior of the glass ionomer cements was also investigated.
本研究比较了26种市售玻璃离子水门汀的抗压强度、抗拉强度和抗弯强度，这些强度在凝固反应开始24小时后进行评估。为了全面评估它们的整体强度，为每种玻璃离子水门汀赋予一个系数。该强度系数给出了受试材料的排名。修复用玻璃离子水门汀得分最高；然而，这些材料的机械性能低于汞合金或复合材料等更传统的修复材料。结果还表明，粘结和衬层用玻璃离子水门汀的机械性能差异很大。本研究还对玻璃离子水门汀的蠕变行为进行了研究。
