Moon M G, Jarrett T A, Morlen R A, Fallo G J
Bernheim Dental Clinic, Fort Benning, Ga, USA.
J Prosthet Dent. 1996 Dec;76(6):608-12. doi: 10.1016/s0022-3913(96)90438-2.
Five resin-modified glass ionomers and amalgam, used as a base or core buildup material, were clinically evaluated for whether they effected polymerization of a low viscosity (light body) regular set polyvinyl siloxane impression material. A total of 20 samples per group was prepared according to the manufacturer's recommendations. Ten samples from each group were handled with latex gloves during mixing and the other 10 were handled with vinyl gloves. Five of the 10 samples had the outer surface prepared with a round diamond wheel. Impressions were made of all the samples. The impression materials were visually scored inhibited or noninhibited. Inhibited impression materials met at least one following criterion: (1) an oily substance on the surface of the impression readily collected on a sterile explorer tine as it was moved across the impression surface; (2) a rippled appearance on the surface of the impression material; or (3) unpolymerized impression material adherent to the prepared sample surface. If none of the criteria were observed, the impression was scored noninhibited. The data were analyzed with the chi square analysis (level of significance p = 0.05). Total chi square analysis revealed a significant difference between brands (p = 0.0001) and between prepared and non-prepared samples (p = 0.001). Interrater reliability data were analyzed with the kappa correlation analysis. Raters were in complete agreement (kappa = +1). The prepared samples of Vitrebond material had an inhibitory effect on the polymerization of Express impression material.
对用作基底或核修复材料的五种树脂改性玻璃离子水门汀和银汞合金进行了临床评估，以确定它们是否会影响低粘度（轻质）常规型聚乙烯基硅氧烷印模材料的聚合。每组根据制造商的建议制备20个样本。每组中的10个样本在混合过程中使用乳胶手套处理，另外10个样本使用乙烯基手套处理。10个样本中的5个样本的外表面用圆形金刚砂轮进行处理。对所有样本制作印模。对印模材料进行视觉评分，分为抑制或未抑制。抑制性印模材料至少符合以下一项标准：（1）当无菌探针在印模表面移动时，印模表面的油性物质很容易聚集在探针尖上；（2）印模材料表面出现波纹状外观；或（3）未聚合的印模材料附着在制备好的样本表面。如果未观察到任何标准，则将印模评为未抑制。使用卡方分析（显著性水平p = 0.05）对数据进行分析。总的卡方分析显示不同品牌之间存在显著差异（p = 0.0001），处理过的样本和未处理的样本之间也存在显著差异（p = 0.001）。使用kappa相关性分析对评分者间可靠性数据进行分析。评分者完全一致（kappa = +1）。Vitrebond材料的处理过的样本对Express印模材料的聚合有抑制作用。
