Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
J Evid Based Dent Pract. 2012 Sep;12(3):131-134.e14. doi: 10.1016/j.jebdp.2012.05.003.
Every day a large number and variety of dental procedures are performed in clinical dental practice. There is, however, no information on the overall quality of evidence supporting these procedures. The objective of this study was to assess whether several common dental procedures are based on sound evidence.
All Cochrane systematic reviews (CSR) published in dentistry were surveyed. The authors' conclusions about the quality of evidence supporting a specific clinical treatment were used as the measure of outcome. The evidence was considered adequate if the authors did not clearly state the evidence was weak in the conclusions while also suggesting some evidence of the effectiveness of the therapy.
Of 120 CSRs assessed, in only 26 (22.0% of the reviews) was the quality of evidence regarded as adequate for supporting clinical decisions, although some methodological limitations were identified in the full text of these reviews. Moreover, the authors of most reviews reported weak or unavailable evidence.
On the basis of CSRs, the overall quality of evidence can be regarded as low or nonexistent for most of the dental procedures assessed. The information reported may guide future research.
在临床牙科实践中，每天都要进行大量不同类型的牙科手术。然而，目前尚无关于支持这些手术的整体证据质量的信息。本研究旨在评估几种常见的牙科手术是否基于可靠的证据。
调查了所有发表在牙科学中的 Cochrane 系统评价 (CSR)。作者对支持特定临床治疗的证据质量的结论被用作结果的衡量标准。如果作者在结论中没有明确说明证据薄弱，但同时也暗示了治疗效果的一些证据，则认为证据是充分的。
在所评估的 120 项 CSR 中，只有 26 项（占评论的 22.0%）被认为具有足够的证据质量来支持临床决策，尽管这些评论的全文中都存在一些方法学上的局限性。此外，大多数评论的作者报告证据薄弱或不可用。
根据 CSR，评估的大多数牙科手术的整体证据质量可以被认为很低或不存在。所报告的信息可以指导未来的研究。
