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首页> 外文期刊>The Journal of Prosthetic Dentistry >Survival of Dicor glass-ceramic dental restorations over 16 years. Part III: effect of luting agent and tooth or tooth-substitute core structure.
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Survival of Dicor glass-ceramic dental restorations over 16 years. Part III: effect of luting agent and tooth or tooth-substitute core structure.

机译：Dicor玻璃陶瓷牙修复体的生存期超过16年。第三部分：诱剂和牙齿或牙齿替代芯结构的作用。

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STATEMENT OF PROBLEM: The influence of different types of restorative design features on the long-term survival of Dicor glass-ceramic restorations is only partially understood. PURPOSE: This study examined the effect of different types of luting agents and preparation core structures on the survival of Dicor glass-ceramic restorations functioning in vivo. MATERIAL AND METHODS: A total of 1444 Dicor glass-ceramic restorations were placed on the teeth of 417 adults. Failure was defined as a restoration that required remake because of material fracture. The survival of restorations of different types, with different luting agents and preparation core structures, was described with Kaplan-Meier survival functions. The significance of differences in survival between different tooth or tooth-substitute preparation core structures and different luting agents was determined with the log-rank test. RESULTS: The probability of survival of a typical acid-etched Dicor restoration luted to gold preparation core structures was 91% at 16 years compared with 75% for dentin preparation core structures (P<.01). The survival of acid-etched Dicor restorations luted to dentin preparations was significantly better than nonacid-etched restorations luted to dentin. Acid-etched Dicor restorations luted with resin composite exhibited a more favorable survival function than those luted with glass ionomer (P<.01) and zinc phosphate (P<.05). Differences between restorations luted with glass ionomer or zinc phosphate agents were not significant. CONCLUSION: Acid-etched Dicor restorations luted to gold preparation core structures exhibited significantly better intraoral survival than restorations luted to dentin. Acid-etched Dicor restorations survived better than nonacid-etched restorations when luted to dentin preparations. Acid-etched Dicor restorations luted with resin composite exhibited more favorable survivor functions than restorations luted with glass ionomer or zinc phosphate agents.
机译：问题陈述：不同类型的修复设计特征对Dicor玻璃陶瓷修复体长期生存的影响仅被部分理解。目的：本研究检查了不同类型的诱剂和制剂核心结构对Dicor玻璃陶瓷修复体在体内起作用的存活率的影响。材料与方法：在417名成年人的牙齿上共放置了1444个Dicor玻璃陶瓷修复体。失败定义为由于材料断裂而需要重新制作的修复体。用Kaplan-Meier生存函数描述了具有不同诱剂和制备核心结构的不同类型修复体的生存情况。通过对数秩检验确定了不同牙齿或牙齿替代品制备芯结构与不同浸润剂之间存活差异的显着性。结果：典型的酸蚀Dicor修复物在16年时存活的概率为91％，而牙本质制备核心结构的存活率为75％（P <.01）。被酸蚀为牙本质制剂的酸蚀Dicor修复体的存活率明显优于被酸蚀为牙本质制剂的非酸蚀性修复体。用树脂复合材料腐蚀的酸蚀Dicor修复体比用玻璃离聚物（P <.01）和磷酸锌（P <.05）腐蚀的Dicor修复体具有更好的生存功能。用玻璃离聚物或磷酸锌试剂诱惑的修复体之间的差异不明显。结论：酸蚀的Dicor修复物诱使金准备的核心结构表现出比诱使牙本质修复物显着更好的口腔内存活。当腐蚀牙本质制剂时，酸蚀的Dicor修复体比非酸蚀的修复体生存得更好。用树脂复合材料腐蚀的酸蚀Dicor修复体比用玻璃离聚物或磷酸锌试剂腐蚀的修复体表现出更好的幸存者功能。

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