Rondon Rafael Henrique Nunes, Pereira Yamba Carla Lara, do Nascimento Glauce Crivelaro
Stomathology and Oral Diagnostic Program, School of Dentistry of São Paulo, University of São Paulo, São Paulo, Brazil.
Biology Dental Buco Graduate Program, School of Dentistry of Piracicaba, University of Campinas, Piracicaba, Brazil.
Imaging Sci Dent. 2014 Mar;44(1):1-6. doi: 10.5624/isd.2014.44.1.1. Epub 2014 Mar 19.
Professionals performing radiographic examinations are responsible for maintaining optimal image quality for accurate diagnoses. These professionals must competently execute techniques such as film manipulation and processing to minimize patient exposure to radiation. Improper performance by the professional and/or patient may result in a radiographic image of unsatisfactory quality that can also lead to a misdiagnosis and the development of an inadequate treatment plan. Currently, the most commonly performed extraoral examination is panoramic radiography. The invention of panoramic radiography has resulted in improvements in image quality with decreased exposure to radiation and at a low cost. However, this technique requires careful, accurate positioning of the patient's teeth and surrounding maxillofacial bone structure within the focal trough. Therefore, we reviewed the literature for the most common types of positioning errors in panoramic radiography to suggest the correct techniques. We would also discuss how to determine if the most common positioning errors occurred in panoramic radiography, such as in the positioning of the patient's head, tongue, chin, or body.
进行放射检查的专业人员有责任保持最佳图像质量以进行准确诊断。这些专业人员必须熟练执行诸如胶片操作和冲洗等技术，以尽量减少患者的辐射暴露。专业人员和/或患者的不当操作可能会导致图像质量不佳的放射影像，这也可能导致误诊和不充分治疗方案的制定。目前，最常进行的口外检查是全景放射摄影。全景放射摄影的发明提高了图像质量，减少了辐射暴露，且成本较低。然而，这项技术要求患者的牙齿和周围颌面骨结构在聚焦槽内进行仔细、准确的定位。因此，我们查阅了文献，以了解全景放射摄影中最常见的定位错误类型，从而提出正确的技术方法。我们还将讨论如何确定全景放射摄影中是否出现了最常见的定位错误，例如患者头部、舌头、下巴或身体的定位错误。
