Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, Brazil.
Department of Stomatology, Public Health and Forensic Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo Ribeirão Preto, São Paulo, Brazil.
Dentomaxillofac Radiol. 2021 May 1;50(4):20200449. doi: 10.1259/dmfr.20200449. Epub 2021 Jan 6.
To create and validate two new Image Receptor-Holding devices (IRHDs) to reduce proximal surfaces overlapping in bitewing radiography in comparison to a regular well-established and commercially available IRHD.
Two IRHDs for bitewing radiographs with a wedge on the biting surface were designed and 3D-printed. These IRHDs, with a large wedge (Pr-Lw) and small wedge (Pr-Sw), were compared with a regular commercially available IRHD (Rinn XCP) during image acquisition of bitewing radiographs of four posterior regions (one upper region and three lower regions) in two dry skulls and mandibles. A total of 156 interproximal regions on bitewing radiographs were radiographed by 13 oral radiology graduate students and independently assessed by two oral radiologists (10 years of experience). IRHDs were compared by Cochran's Q test regarding the number of overlapped proximal surfaces in the acquired radiographs with a significance level of 5%.
The observers were in perfect agreement (κ = 1.0) to classify the proximal surfaces overlapping. The Pr-Lw IRHD presented the lowest number of surfaces overlapping (19.2%) followed by the Pr-Sw IRHD (48.1%) and the XCPIRHD with the highest surfaces overlapping (71.2%). The Pr-Lw IRHD surfaces overlapping was statistically different from the XCP IRHD ( < 0.001), and the Pr-Sw IRHD ( = 0.014).
The Pr-Lw IRHD demonstrated the most efficient performance in overlapping surfaces reduction, compared with the Pr-Sw IRHD and the XCP IRHD in adult dry skulls and mandibles.
设计并验证两种新的影像接收器保持器（IRHD），以减少与常规、成熟且市售的 IRHD 相比在口内片摄影中近中面的重叠。
设计并 3D 打印了两种具有咬合面楔形物的口内片用 IRHD。这些 IRHD 分别带有大楔形物（Pr-Lw）和小楔形物（Pr-Sw），在两个干颅骨和下颌骨的四个后牙区（一个上牙区和三个下牙区）的口内片图像采集期间，与常规市售的 Rinn XCP IRHD 进行比较。13 名口腔放射学研究生对总共 156 个口内片近中区域进行拍摄，由两名口腔放射科医生（具有 10 年经验）进行独立评估。使用 Cochran Q 检验比较 IRHD 在获得的放射片中重叠的近中面数量，显著性水平为 5%。
观察者在分类重叠近中面方面达成完美一致（κ=1.0）。Pr-Lw IRHD 呈现出最低的重叠面数量（19.2%），其次是 Pr-Sw IRHD（48.1%）和 XCP IRHD（71.2%）。Pr-Lw IRHD 的重叠面数量与 XCP IRHD 有统计学差异（<0.001），与 Pr-Sw IRHD 也有统计学差异（=0.014）。
与常规、成熟且市售的 XCP IRHD 相比，Pr-Lw IRHD 在干颅骨和下颌骨的成人中在减少重叠面方面表现出最有效的性能。
