Svenson B, Petersson A
Department of Oral Radiology, Postgraduate Dental Education Center, Orebro, Sweden.
Swed Dent J. 1991;15(5):245-50.
The influence of tube voltage on radiographic diagnosis of caries in extracted premolars and molars was examined. Five combinations of dental X-ray machines and kV-settings were used (Philips Oralix 65 kV; Siemens Heliodent EC 60 kV; Siemens Heliodent 70 kV; Soredex Minray DC 60 kV and 70 kV). The diagnostic accuracy was evaluated with the ROC-technique. The results showed no significant differences in the diagnostic accuracy between premolars and molars. However, the diagnostic accuracy tended to be better with low kilovoltage for radiography of premolars and high kilovoltage for radiography of molars.
研究了管电压对拔除的前磨牙和磨牙龋病影像学诊断的影响。使用了五种牙科X射线机和千伏设置的组合（飞利浦Oralix 65 kV；西门子Heliodent EC 60 kV；西门子Heliodent 70 kV；Soredex Minray DC 60 kV和70 kV）。采用ROC技术评估诊断准确性。结果显示，前磨牙和磨牙之间的诊断准确性无显著差异。然而，对于前磨牙的X线摄影，低千伏时诊断准确性往往更好；对于磨牙的X线摄影，高千伏时诊断准确性往往更好。
