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首页> 外文期刊>International Journal of Environmental Research and Public Health >The Dental Aesthetic Index and Dental Health Component of the Index of Orthodontic Treatment Need as Tools in Epidemiological Studies
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The Dental Aesthetic Index and Dental Health Component of the Index of Orthodontic Treatment Need as Tools in Epidemiological Studies

机译：正畸治疗需要的牙齿美学指数和牙齿健康成分作为流行病学研究的工具

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摘要

The present study assesses the validity and reproducibility of two occlusal indices for epidemiological studies—the Dental Aesthetic Index (DAI) and the Dental Health Component of the Index of Orthodontic Treatment Need (DHC-IOTN) for the identification of orthodontic treatment needs. The total of 131 study models was examined by an examiner (orthodontic specialist) for the determination of the DAI and DHC-IOTN. Thirty days later, further assessment was performed to determine the reproducibility. The duration of each exam was measured in seconds with a stopwatch. The indices were compared by a panel of three experts in orthodontics to evaluate validity. The intra-examiner reliability evaluation resulted in an intraclass correlation coefficient of 0.89 for the DAI (95% CI = 0.64 to 1.0) and 0.87 for the DHC-IOTN (95% CI = 0.56 to 0.96). The time spent on the evaluation of the DHC-IOTN was less than the time spent on that of the DAI (P < 0.001). The accuracy of the indices, as reflected by the area under the receiver-operating characteristic curve, was 61% for the DAI (95% CI = 51 to 70; p = 0.037) and 67% for the DHC-IOTN (95% CI = 58 to 77; p = 0.001). Both indices presented good reproducibility and validity.
机译：本研究评估了两种流行病学研究的咬合指数的有效性和可重复性-牙齿美学指数（DAI）和正畸治疗需求指数（DHC-IOTN）的牙齿健康成分，以识别正畸治疗需求。共有131个研究模型由检查员（牙齿矫正专家）检查，以确定DAI和DHC-IOTN。 30天后，进行进一步评估以确定可再现性。用秒表以秒为单位测量每次检查的持续时间。由三位正畸专家组成的小组对这些指标进行了比较，以评估其有效性。审查员内部可靠性评估得出的DAI组内相关系数为0.89（95％CI = 0.64至1.0），DHC-IOTN的组内相关系数为0.87（95％CI = 0.56至0.96）。在DHC-IOTN评估上花费的时间少于在DAI上花费的时间（P <0.001）。 DAI的接收器工作特性曲线下的面积所反映的指标的准确性为61％，DAI（95％CI = 51至70; p = 0.037）和DHC为67％ -IOTN（95％CI = 58至77; p = 0.001）。两项指标均具有良好的可重复性和有效性。

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