Matteson S R, Phillips C, Kantor M L, Leinedecker T
Section of Oral Radiology, School of Dentistry, University of North Carolina, Chapel Hill.
Oral Surg Oral Med Oral Pathol. 1989 Aug;68(2):232-7. doi: 10.1016/0030-4220(89)90199-0.
The purpose of this investigation was to study the effect of the size of carious lesions, radiographic density of composite and amalgam restorative materials, and film speed on the radiographic detection of simulated recurrent caries. Radiographs were made of extracted premolars with either large or small recurrent carious lesions simulated adjacent to Class II amalgam or composite restorations with both E-speed and D-speed intraoral film. For each restorative material, teeth that had no simulated caries were compared with teeth that had small and large simulated caries. Recurrent caries is detected best when the lesion is adjacent to radiopaque composite restorations, and detection is poorest when the lesion is next to radiolucent composite restorations. Large carious lesions are identified correctly more often than small lesions, although many lesions are not detected at all, especially those adjacent to radiolucent composite materials. There is no difference between E-speed and D-speed film for the detection of recurrent carious lesions.
本研究的目的是探讨龋损大小、复合树脂和银汞合金修复材料的X线影像密度以及胶片速度对模拟复发性龋X线检测的影响。用E速和D速口内胶片对拔除的前磨牙进行X线摄影，这些前磨牙在II类银汞合金或复合树脂修复体旁模拟有大小不同的复发性龋损。对于每种修复材料，将无模拟龋的牙齿与有大小不同模拟龋的牙齿进行比较。当龋损邻近不透光的复合树脂修复体时，复发性龋的检测效果最佳；当龋损邻近透光的复合树脂修复体时，检测效果最差。大的龋损比小的龋损更常被正确识别，尽管许多龋损根本未被检测到，尤其是那些邻近透光复合材料的龋损。在检测复发性龋损方面，E速胶片和D速胶片之间没有差异。
