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首页> 外文期刊>Evidence-based dentistry >Lack of reliable clinical evidence for or against direct and indirect veneers.
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Lack of reliable clinical evidence for or against direct and indirect veneers.

机译：缺乏可靠的临床证据支持或反对单板和单板。

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DATA SOURCES: Sources were the Cochrane Oral Health Group's Trials Register, Cochrane Central Register of Controlled Trials, issue 3 of the 2002 Cochrane Library, and Medline and Embase (both from 1980 to 19 November 2002). There was no restriction on publication language. STUDY SELECTION: Studies were randomised controlled trials including participants who had permanent anterior teeth suitable for restorations using laminate veneers, and which compared direct (different composite materials) and indirect techniques for making dental veneers. The indirect restorations were either composite or porcelain. The primary outcome was restoration failure. DATA EXTRACTION AND SYNTHESIS: Assessment of relevance and validity and data extraction were conducted in triplicate. Authors of the primary studies were contacted to provide additional information as necessary. RESULTS: Only one trial met the review's inclusion criteria for participant characteristics, interventions and outcomes assessed but, even then, problems with the reporting of the data prevented any statistical analysis of the results. CONCLUSIONS: There is no reliable evidence to show a benefit of one type of veneer restoration (direct or indirect) over the other with regard to the longevity of the restoration.
机译：数据来源：资料来源为Cochrane口腔健康小组的试验登记册，Cochrane对照试验中央登记册，2002年Cochrane图书馆第3期以及Medline和Embase（均为1980年至2002年11月19日）。出版语言没有限制。研究选择：研究是随机对照试验，包括具有适合于使用层压贴面修复的恒牙的前牙，并比较了直接（不同复合材料）和间接技术制造牙贴的参与者。间接修复物是复合材料或瓷器。主要结果是恢复失败。数据提取与合成：进行三次相关性评估，相关性和有效性评估以及数据提取。已联系基础研究的作者，以根据需要提供其他信息。结果：只有一项试验符合参与者特征，干预措施和评估结果的评价纳入标准，但即使如此，数据报告方面的问题仍无法对结果进行任何统计分析。结论：没有可靠的证据显示一种类型的单板修复（​​直接或间接）相对于另一种单板修复具有更长的使用寿命。

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