Bakx S, Syriopoulos K
Ned Tijdschr Tandheelkd. 2015 May;122(5):280-5. doi: 10.5177/ntvt.2015.5.14245.
Guidelines allow retakes of dental radiographs of up to 10%. In the general practice the percentage of retakes is considerably higher. In intraoral radiography film positioning and faults in directing the collimator are the most common reasons for retakes. The use of film holders and correctly aiming the collimator decrease the risk of failure. In panoramic radiography the positioning of the patient in the x-ray machine and the palatoglossal air space are the main causes of failure of radiographs. A systematic approach, a thorough check of the radiation area for artefacts and the use of the available laser lines decrease the risk of a diagnostically unacceptable radiograph.
指南允许最多10%的牙科X光片重拍。在一般诊所中，重拍的百分比要高得多。在口腔内X光摄影中，胶片定位和准直器方向错误是重拍的最常见原因。使用胶片固定器并正确对准准直器可降低失败风险。在全景X光摄影中，患者在X光机中的位置以及腭舌间隙是X光片失败的主要原因。采用系统的方法、彻底检查辐射区域是否有伪影以及使用现有的激光线可降低获得诊断不可接受的X光片的风险。
