X-ray radiography is currently used in dentistry and can be divided into two categories: two-dimensional (2D) radiographic images (e.g., using periapical film, cephalometric film, and panoramic X-ray) and three-dimensional (3D) radiographic images (e.g., using dental cone-beam computed tomography (CBCT)). Among them, 2D periapical film images are most commonly used. However, 2D periapical film compresses 3D image information into a 2D image, which means that depth cannot be identified from the image. Such compressed images lose a considerable amount of information, reducing their clinical applicability. A 2.5D periapical radiography system prototype was developed by our research team. Our previous study indicated that this prototype could be used to capture images at different depths of an object. However, the prototype was limited by its commercially available intraoral periapical sensor, which had a low temporal resolution and could not capture multiple images in a short period of time. Therefore, the total time required for image capture was too long for practical clinical application. The present study developed a high-frame-rate intraoral periapical sensor with a sensor imaging speed of up to 15 Hz. The primary components of the developed intraoral periapical sensor include a scintillator, complementary metal oxide semiconductor chip, component circuit board, and video processing board. The external dimensions of the sensor are  mm³. The performance of the developed high-frame-rate intraoral periapical sensor was verified through qualified and quantified analyses using line pairs. The results showed that the resolution of the developed intraoral periapical sensor could reach 18 lp/mm. The sensor was further installed in our 2.5D periapical radiography system to conduct image capturing. The results indicated that the developed sensor could be used for high-frame-rate imaging to incorporate tomosynthesis to obtain reconstructed slice images of different depths. The developed sensor has the potential for clinical dentistry applications in the future.

中文翻译：

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具有高帧频的2.5D根尖放射成像系统原型口腔内根尖传感器。

X射线照相术目前在牙科中使用，可以分为两类：二维（2D）射线照相图像（例如，使用根尖膜，头颅膜和全景X射线）和三维（3D）射线照相图像（例如，使用锥形锥计算机断层扫描（CBCT））。其中，最常用的是2D根尖周胶片图像。但是，2D根尖膜将3D图像信息压缩为2D图像，这意味着无法从图像识别深度。这样的压缩图像会丢失大量信息，从而降低其临床适用性。我们的研究团队开发了2.5D根尖放射照相系统原型。我们之前的研究表明，该原型可用于捕获对象不同深度的图像。然而，该原型受到其市售的口腔内根尖传感器的限制，该传感器的时间分辨率低，并且无法在短时间内捕获多个图像。因此，图像捕获所需的总时间对于实际临床应用而言太长。本研究开发了一种高帧速口腔内根尖传感器，其传感器成像速度高达15 Hz。研发的口腔内根尖传感器的主要组件包括闪烁体，互补金属氧化物半导体芯片，组件电路板和视频处理板。传感器的外部尺寸为 图像捕获所需的总时间对于实际临床应用而言太长。本研究开发了一种高帧速口腔内根尖传感器，其传感器成像速度高达15 Hz。研发的口腔内根尖传感器的主要组件包括闪烁体，互补金属氧化物半导体芯片，组件电路板和视频处理板。传感器的外部尺寸为 图像捕获所需的总时间对于实际临床应用而言太长。本研究开发了一种高帧速口腔内根尖传感器，其传感器成像速度高达15 Hz。研发的口腔内根尖传感器的主要组件包括闪烁体，互补金属氧化物半导体芯片，组件电路板和视频处理板。传感器的外部尺寸为 毫米³。通过使用线对进行合格和定量的分析，验证了开发的高帧速口腔内根尖传感器的性能。结果表明，开发的口腔内根尖传感器的分辨率可以达到18 lp / mm。该传感器进一步安装在我们的2.5D根尖放射成像系统中，以进行图像捕获。结果表明，开发的传感器可用于高帧频成像，以结合断层合成以获得不同深度的重建切片图像。开发的传感器在未来的临床牙科应用中具有潜力。