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目的研究根尖周病变Ｘ光片评估中检查者判断的可靠性。方法五位检查者先后两次对已作编号的２１７张牙片的根尖周情况归类。即判断为正常根尖或病变根尖。计算各检查者判断完全相符的例数以及每个检查者先后两次判断相符的例数。结果五位检查者判断完全相符的牙数：第一次检查为７０例（３２．３％），第二次为６６例（３０．４％）。各位检查者先后二次阅片完全相符率分别是１６３例（７５．１％），１４８例（６８．２％），１４９例（６８．７％），１４６例（６７．３％），１３５例（６２．２％），平均为１４８例（６８．２％）。结论根尖区结构的Ｘ光片评估中，检查者判断的可靠性不太大。检查者本身因素较明显地影响其判断结果。
Objective To study the reliability of examiners in the evaluation of apical lesions. Methods Five examiners twice successively classified apical circumferences of 217 numbered teeth. That is to determine the normal apical or diseased apical. The number of cases in which each examiner determines the complete coincidence is calculated, and the number of coincidences is determined by each examiner twice in succession. Results The five examiners judged exactly the number of teeth: the first examination was 70 cases (32.3%) and the second was 66 cases (30.4%). The results of all the examiners' second readings were 163 cases (75.1%), 148 cases (68.2%), 149 cases (68.7%), 146 cases (67.3%), 135 Cases (62.2%), an average of 148 cases (68.2%). Conclusions In the evaluation of the radiographs of the apical structure, the reliability of the examiner's judgment is not too great. The examiner's own factors obviously affect the judgment result.