San Marco P A, Montgomery S
Oral Surg Oral Med Oral Pathol. 1984 Mar;57(3):308-14. doi: 10.1016/0030-4220(84)90187-7.
Files inserted and secured in forty-seven canals of maxillary and mandibular cadaver jaw sections were radiographed by conventional and xeroradiographic means, with the use of positioning devices and beam-guiding instruments. Measurements of the radiographically interpreted distance and the actual distance of files from the anatomic apex were made and compared. The data were analyzed by use of the Student's t test. There was no statistically significant difference between conventional and xeroradiographic methods. Xeroradiographs were subjectively judged better than conventional radiographs for maximum visualization of dental structures important to endodontics. Radiation levels needed for quality radiographs were found to be less with the xeroradiographic process.
将插入并固定在上颌和下颌尸体颌骨切片的47个根管中的锉通过传统和干板X线摄影方法进行放射照相，使用定位装置和束流引导器械。对放射学解释的锉距解剖根尖的距离和实际距离进行测量并比较。数据采用学生t检验进行分析。传统和干板X线摄影方法之间没有统计学上的显著差异。主观判断干板X线照片在最大程度显示对牙髓病学重要的牙齿结构方面优于传统X线照片。发现干板X线摄影过程所需的优质X线照片的辐射水平较低。
