Rohlin M, White S C
Centre for Oral Health Sciences, Lund University, Malmö, Sweden.
Curr Opin Dent. 1992 Jun;2:1-9.
This review on dose reduction in dental radiography focuses on criteria for selecting the frequency and type of radiographs to be performed on patients. By making radiographs only when there is a reasonable probability of a finding that will influence patient care, patient exposure and other radiographic costs may be substantially reduced. Patient dose may also be reduced by half by changing from D-speed film to E-speed film for intraoral radiography and by more than half by changing from calcium tungstate intensifying screens to rare-earth intensifying screens for panoramic and cephalometric radiography. Using rectangular collimation for intraoral radiography will also further reduce patient exposure by about fourfold. Finally, the use of time-temperature processing will prevent overexposure of the patient and underprocessing of the radiographs; optimal radiographs will be provided.
这篇关于牙科放射摄影剂量减少的综述聚焦于为患者选择进行放射摄影的频率和类型的标准。仅在有合理可能性发现会影响患者护理的情况下进行放射摄影，患者的辐射暴露及其他放射摄影成本可能会大幅降低。通过将口内放射摄影的D速胶片更换为E速胶片，患者剂量也可减半；而将全景和头颅测量放射摄影的钨酸钙增感屏更换为稀土增感屏，患者剂量可减少一半以上。在口内放射摄影中使用矩形准直也将进一步使患者辐射暴露减少约四倍。最后，采用时间 - 温度处理可防止患者过度曝光和放射照片显影不足；从而提供最佳的放射照片。
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