Department of Oral Diagnostic and Surgical Sciences, University of Otago, Dunedin, New Zealand.
Int J Prosthodont. 2012 Jul-Aug;25(4):326-39.
Resonance frequency analysis (RFA) is used to measure oral implant stability. There is controversy with regard to its accuracy in predicting both implant stability and osseointegration. This systematic review and meta-analysis determined the prognostic accuracy of RFA in predicting implant failure following immediate loading protocols.
MEDLINE, EMBASE, the Cochrane Oral Health Group's Trials Register, the United Kingdom National Research Register, the Australian New Zealand Clinical Trials Registry, the Database of Abstracts of Reviews of Effectiveness, and the Conference Proceedings Citations Index were searched to select studies that used RFA in assessing implant stability prior to immediate loading. The sensitivity, specificity, and accuracy of RFA in the selected studies were evaluated using a random effects model. The summary receiver operating characteristic was constructed to summarize the overall test performance.
Fifteen studies with 2,236 immediately loaded implants were identified. The sensitivity of RFA in predicting failure of immediately loaded implants was 0.38 (95% confidence interval [CI]: 0.22 to 0.56), the specificity was 0.73 (95% CI: 0.71 to 0.75), and the diagnostic odds ratio was 2.10 (95% CI: 0.79 to 5.57). The area under the curve was 0.54, suggesting a poor predictive and discriminative ability.
RFA measurement at the time of implant placement is not sufficiently accurate to determine implant stability and osseointegration during immediate loading protocols.
共振频率分析（RFA）用于测量口腔种植体的稳定性。关于其在预测种植体稳定性和骨整合方面的准确性存在争议。本系统评价和荟萃分析确定了 RFA 在预测即刻负重方案中种植体失败的预后准确性。
检索 MEDLINE、EMBASE、Cochrane 口腔健康组试验登记处、英国国家研究登记处、澳大利亚新西兰临床试验登记处、疗效摘要数据库和会议论文引文索引，以选择在即刻负载之前使用 RFA 评估种植体稳定性的研究。使用随机效应模型评估选定研究中 RFA 的敏感性、特异性和准确性。构建综合受试者工作特征曲线以总结总体测试性能。
确定了 15 项研究，共 2236 个即刻加载种植体。RFA 预测即刻加载种植体失败的敏感性为 0.38（95%置信区间 [CI]：0.22 至 0.56），特异性为 0.73（95% CI：0.71 至 0.75），诊断优势比为 2.10（95% CI：0.79 至 5.57）。曲线下面积为 0.54，表明预测和鉴别能力较差。
在种植体放置时进行 RFA 测量不足以确定即刻负重方案中的种植体稳定性和骨整合。
