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首页> 外文期刊>The Journal of Prosthetic Dentistry >Type IV gypsum compatibility with five addition-reaction silicone impression materials.
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Type IV gypsum compatibility with five addition-reaction silicone impression materials.

机译：IV型石膏与五种加成反应有机硅印模材料的相容性。

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STATEMENT OF PROBLEM: The compatibility of current addition-reaction silicone impression materials and Type IV gypsum products is not completely understood. PURPOSE: The purpose of this study was to compare surface detail reproduction between various combinations of contemporary addition-reaction silicone impression materials and Type IV gypsum products. MATERIAL AND METHODS: Under standardized conditions, 300 impressions were made of a ruled stainless steel die (ADA specification 19), using 5 addition-reaction silicones (Examix-NDS, Doric-ES Flo-Light, Panasil Contact Plus, Extrude Wash, and President Plus Jet). Fifteen impressions of each material were poured with each Type IV gypsum product (Silky-Rock, Fuji Rock, Suprastone, or Vel-Mix). Using x12 magnification, 2 independent examiners scored the reproducibility of a 20-microm line in both the impression and the resultant casts. Statistical analysis was performed using 2-way analysis of variance and post hoc Bonferroni testing (alpha = .05). RESULTS: All impression materials tested fully reproduced the 20-microm line. Different impression materials showed different compatibility with different Type IV gypsum products. Only 25% of the Type IV gypsum casts completely reproduced the resultant 20-microm line with fine margins, and 88% of the completely reproduced casts were made from Suprastone. CONCLUSION: Not all combinations of impression material and Type IV gypsum products used exhibited similar compatibility.
机译：问题陈述：目前的加成反应有机硅印模材料与IV型石膏产品的相容性尚不完全清楚。目的：本研究的目的是比较当代加成反应有机硅印模材料与IV型石膏产品的各种组合之间的表面细节再现。材料和方法：在标准化条件下，使用5种加成反应有机硅（Examix-NDS，Doric-ES Flo-Light，Panasil Contact Plus，挤出洗涤和总统喷气机）。每种IV型石膏产品（Silky-Rock，Fuji Rock，Suprastone或Vel-Mix）倒入15种印模。使用x12放大倍数，由2位独立检查员对压痕和最终铸件的20微米线的可重复性进行了评分。使用方差的2-way分析和事后Bonferroni检验（α= 0.05）进行统计分析。结果：所有经过测试的印模材料均完全复制了20微米线。不同的印模材料对不同的IV型石膏产品显示出不同的相容性。 IV型石膏铸件中只有25％完全复制了20微米的细边线，而88％的完全复制铸件由Suprastone制造。结论：并非印模材料和IV型石膏产品的所有组合都表现出相似的相容性。

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