Abstract
Poor medical equipment may lead to misdiagnosis and missed diagnosis by doctors, leading to medical accidents. Given the differences in imaging methods, the performance determination method for conventional computed tomography (CT) does not apply to dental cone-beam computed tomography (CBCT). Therefore, a detection method that is more suitable for the characteristics of dental CBCT and more convenient for on-site operation in hospitals needs to be urgently developed. Hence, this study aimed to design a robust and convenient detection method to control the quality of dental CBCT, grasp the safety information of the equipment in a timely and effective manner, discover and evaluate equipment risks, and take reasonable and necessary countermeasures, thereby, reducing the risk of medical malpractice. This study adopted dose-area product to measure dose parameters and used objective quantitative evaluation methods instead of subjective evaluation methods for spatial resolution, contrast-to-noise ratio index, and uniformity. The dental CBCT of 10 dental hospitals and clinics were tested, and the findings revealed that the testing methods used had good accuracy and applicability.
Highlights
Dental cone-beam computed tomography (CBCT) has been widely used in dental pulp diseases, periodontal diseases, pre-implant examination, temporomandibular joint structure examination, and orthodontic two-dimensional (2D) and three-dimensional (3D)measurement because of its high spatial resolution, low radiation dose, relatively small metal artifact interference, and simple equipment operation
Misch et al showed that all periodontal bone defects and furcation involvement could be diagnosed by CBCT, and the missed diagnosis rate of periapical radiography for vertical bone defects and furcation involvement was as high as 31% and 42%, respectively [10]
While meeting basic clinical needs, dental CBCT involves the use of a large number of application software packages: free software packages provided by CBCT manufacturers, such as Invivo, NNT, Sidexis XG, and so forth, and many third-party commercial software packages, such as EasyGuide, Implant 3D, SimPlant, Med 3D, NobelClinician, and so forth
Summary
Dental cone-beam computed tomography (CBCT) has been widely used in dental pulp diseases, periodontal diseases, pre-implant examination, temporomandibular joint structure examination, and orthodontic two-dimensional (2D) and three-dimensional (3D). Measurement because of its high spatial resolution, low radiation dose, relatively small metal artifact interference, and simple equipment operation It has completely replaced the application of traditional medical computed tomography (CT) in these aspects and has become one of the important standard examinations and diagnostic means in stomatology. Original 2D data can be acquired for 3D reconstruction with a 360-degree rotation Another advantage of dental CBCT lies in its high isotropic spatial resolution [12,13]. CBCT has the advantages of a larger field of view (FOV), a low radiation dose, and a high spatial resolution It has the disadvantage of a relatively low contrast resolution, which means that it cannot display soft tissue structure similar to spiral CT, thereby limiting the further clinical application of dental CBCT.
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