Wenjian Zhang is Associate Professor, Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston; Carolyn Huynh is Associate Professor, Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston; Aniket Jadhav is Assistant Professor, Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston; Jose Pinales is Dental Radiologic Technologist III, Department of Patient Care, University of Texas School of Dentistry at Houston; Liliana Arvizu is Dental Radiologic Technologist III, Department of Patient Care, University of Texas School of Dentistry at Houston; Jenny Tsai is Dental Radiologic Technologist I, Department of Patient Care, University of Texas School of Dentistry at Houston; and Nidia Flores is Dental Radiologic Technologist I, Department of Patient Care, University of Texas School of Dentistry at Houston.
J Dent Educ. 2019 Oct;83(10):1205-1212. doi: 10.21815/JDE.019.120. Epub 2019 Jun 24.
The photostimulable phosphor (PSP) plate and charge-coupled device (CCD) are receptors commonly used for intraoral radiography in U.S. dental schools. However, it is unclear which receptor is more beneficial for radiology education and patient care in an academic setting. The aim of this study was to compare the time efficiency, image quality, and operator performance for student-operated PSP plate and CCD receptors. At one U.S. dental school in 2018, 20 dental hygiene and dental students (n=10 each) were recruited as operators. They each exposed anterior and posterior periapical and bitewing radiographs on dental radiograph teaching and training replica using the PSP plate and CCD as receptors. The time taken to expose the radiographs was recorded. Image sharpness/definition, brightness/contrast, and technical errors, including placement, angulation, and cone cut errors, were evaluated on a three-point scale with 0=non-diagnostic, 1=diagnostic acceptable with minor errors, and 2=perfect diagnostic quality. The results showed that it was generally faster for the students to expose intraoral radiographs with CCDs than with PSP plates, although the difference was not significant (p>0.05). Image quality and technical accuracy, especially angulation, were significantly superior for PSP relative to CCD (p<0.05). This study found that PSP imaging was of higher quality and accuracy than CCD, whereas CCD was more efficient. Dental and dental hygiene students would benefit from being trained on both receptors to be able to adapt to a diversified workplace.
光激励磷光体 (PSP) 板和电荷耦合器件 (CCD) 是美国牙科学校中常用的口腔内放射摄影受体。然而，尚不清楚哪种受体在学术环境中更有益于放射学教育和患者护理。本研究旨在比较学生操作的 PSP 板和 CCD 受体的时间效率、图像质量和操作人员的表现。在 2018 年的一所美国牙科学校，招募了 20 名牙科卫生学和牙科学生（每组 10 名）作为操作人员。他们每个人都使用 PSP 板和 CCD 作为受体，在口腔放射教学和培训复制品上曝光了前牙和后牙根尖周和咬翼放射照片。记录曝光放射照片所需的时间。使用三点量表评估图像清晰度/定义、亮度/对比度以及技术误差，包括位置、角度和锥束切割误差，0=无诊断价值，1=诊断可接受，存在较小误差，2=具有完美诊断质量。结果表明，学生使用 CCD 曝光口腔内放射照片通常比使用 PSP 板更快，尽管差异不显著（p>0.05）。与 CCD 相比，PSP 的图像质量和技术准确性，特别是角度，明显更好（p<0.05）。本研究发现，PSP 成像的质量和准确性高于 CCD，而 CCD 更高效。牙科和牙科卫生学生将受益于接受两种受体的培训，以便能够适应多样化的工作场所。
