Common positioning and technical errors in panoramic radiography (original) (raw)
Related papers
Common Positioning Errors in Digital Panoramic Radiographies Taken In Mashhad Dental School
Journal of Dental Materials and Techniques, 2018
Introduction: The present study was aimed at evaluating common positioning errors on panoramic radiographs taken in the Radiology Department of Mashhad Dental School. Materials and methods: The study sample included 1,990 digital panoramic radiographs taken in the Radiology Department of Mashhad Dental School by a Planmeca Promax (Planmeca Oy, Helsinki, Finland), during a 2-year period (2010–2012). All radiographs, according to dentition and sex, were evaluated for positioning errors. Results: There were 1,927 (96.8%) panoramic radiographs with one or more errors. While the number of errors in each image varied between one and five, most images had one error (48.4%). The most common error was that the tongue was not in contact with the hard palate (94.8%). "Open lips" was an error not seen in any patients. Conclusions:positioning errors are common in panoramic radiographies. The most common error observed in this study was a failure to place the tongue on the palate. This ...
Applied Sciences, 2021
Objectives: A panoramic radiograph (PAN) is the most frequently diagnostic imaging technique carried out in dentistry and oral surgery. The correct performance of image acquisition is crucial to obtain adequate image quality. The aim of the present study is to (i) review the principles of PAN image acquisition and (ii) describe positioning errors and artefacts that may affect PAN image quality. Methods: Articles regarding PAN acquisition principles, patient’s positioning errors, artefacts, and image quality were retrieved from the literature. Results: Head orientation is of the utmost importance in guaranteeing correct image acquisition. Symmetry, occlusal plane inclination, mandibular condyles localization, cervical spine position, aspect of upper teeth root apexes, exposure parameters, and metal and motion artefacts are factors that greatly affect the image quality of a successful PAN. Conclusions: Several factors are the basis for PAN performance; therefore, a systematic approach...
Comparison of the reproducibility of panoramic radiographs between dentulous and edentulous patients
Imaging Science in Dentistry, 2014
Panoramic radiography has been widely used in a variety of cases including the screening of roots of teeth, cysts, foreign bodies, and neoplasms. 1-3 It is also helpful to find bone resorption and osteopenia of the jaws. 4-6 Furthermore, it is indispensible in installing implants. 7 The use of panoramic radiography has been increasing in Korea, but a methodical monitoring system for quality control of the radiographs has not been established as yet. 8 While obtaining the panoramic radiograph, the object should be positioned in the focal trough without any movement. In addition, the narrow image layer in the anterior area can induce errors on the resulting image. 9,10 Therefore, accurate and stable patient positioning is essential for favorable image quality. Along with image quality, the reproducibility control of a panoramic radiograph is important. Acceptable reproducibility of the radiograph provides adequate evaluation of a disease and post-operative follow-ups. Without pro-─ 95 ─
Journal of Medicine, Radiology, Pathology and Surgery
Aim: This study aims to determine the different positioning errors in digital panoramic radiographs in a sample of records collected from the department of oral medicine and radiology. Materials and Methods: The study consisted of 500 panoramic radiographs obtained from the Department of Oral Medicine and Radiology, AME's Dental College and Hospital, Raichur, was taken serially (from the year January 2019), and was retrospectively assessed for positioning errors. These positioning errors were assessed by two oral and maxillofacial radiology specialists using a pro forma enlisting the errors. They also evaluated the relative frequency of all different positioning errors. Statistical Analysis: Data were obtained and the kappa value for intraobserver agreement was calculated, which suggested that among the observers, the kappa value represents intermediate to good agreement. Results: Out of 500 panoramic radiographs evaluated by two observers, 86 (17.2%) had no errors, while 414 (82.8%) showed one or more positioning errors. The most common error in our study was found to be head turned to one side (30.8%) and the least common error was patient movement (1.0%). Conclusion: Positioning errors are very common in panoramic radiography. Patient positioning is the most important factor to avoid errors in preventing repetitive exposure to the patient. We all dental professionals must understand the consequence of these errors on diagnostic yield of good radiographs.
ARC Journal of Forensic Science, 2016
The aim: This study was conducted in order to found the inclusion of panoramic radiography as a vital document in the patient's medical history, giving it more reliability. Methods: For this purpose, 2,732 unidentified panoramic radiographs were evaluated, from patients aged from 15 to 55, males and females, from the files of the Radiology Department from the Dental School of São José dos Campos-São Paulo State University, and from a private radiology clinic in the city of São José dos Campos-SP. During analysis of the radiographs, non-clinically observable radiographic findings were sought. The data found were submitted to descriptive statistical analysis and to the Student T-test. Results: Of all the panoramic radiographs evaluated, 20.31% presented radiographic findings capable of interfering with the diagnosis and prognosis most appropriate for the health of the individual. No statistically significant differences were found between the genders or between gender and age bracket. Conclusion: The results obtained and the multiple odontological purposes of panoramic radiography demonstrate its importance as a document to supplement the odontological history of the individual, giving it more legitimacy and clinical value.
Journal of the Pakistan Dental Association
Endodontic procedures rely heavily on correct radiographs. All stages of endodontic care delivery are affected by the quality of resultant image. Objective of this study was to observe type and frequency of technical errors reported during obtaining intraoral radiographs in the endodontic Department of a teaching hospital. METHODOLOGY: A total of 600 radiographs were included in this retrospective audit. The radiographs were exposed during routine endodontic procedures. A previously published criteria was used to ascertain the technical quality. SPSS version 21 for windows was used for statistical analysis. Frequency and percentage was calculated as well as chi square test was used to determine associations between variables. P < 0.05 was considered significant. RESULTS: A total of 600 radiographs were included in our study out of which, 185 (30.8%) were found to be technically correct (p=0.183). Radiographs of mandibular molars presented with most errors (n=115, 42.4%, p=0.002). Errors of technique were more prevalent (n=383, 63.8%) followed by errors of processing (n=151, 25.2%, p=0.000). Most common error of technique was positioning error (n=113, 18.8%) (Table no 3). Most common processing error was yellowing of radiographs (n=60, 10%, p=0.003). CONCLUSION: Performance of undergraduate students in obtaining radiographs was poor. Positioning errors were found to be the most common error while radiographs of mandibular molars were most affected.
Positioning errors in digital panoramic radiographs- A retrospective analysis
IJARIIT, 2018
Objectives of this paper are to analyze the most prevalent positioning errors in panoramic radiographs. 560 OPG taken from January 2016 - January 2017 in the department of maxillofacial radiology were assessed by two maxillofacial radiologists for positional errors. All radiographs were viewed on a computer monitor using the OHP sheet to demarcate the 6 zones. Results 74 radiographs (11.97%) were error-free and 486 radiographs (88.13%) were with errors. The radiographs with single positional error were 423 (84.3%). The radiographs with 2 positional errors were 57(9.89%). The radiographs with 3 positional errors were 6 (1.04%). The outcome of the analysis reveals that the percentage of positioning errors in panoramic radiographs is fairly high reducing its diagnostic value. Technicians are made aware of the errors and are instructed to recheck the patient position before taking radiographs. A similar audit will be repeated on a regular basis to check the change in the prevalence of positional errors.
Common Radiographic Errors in Dentistry
Acta Scientific Dental Scienecs, 2020
Radiographs are considered an indispensable adjunct in detecting, evaluating and even treating various lesions of teeth and oral cavity [1]. There are two types of dental radiographs that are intra oral and extra oral respectively [2]. Extra oral radiograph includes Oblique lateral radiograph, Skull and maxillofacial radiograph, Cephalometric radiograph, Tomographic radiograph and Dental panoramic radiographs [3]. Intra oral radiograph includes Periapical, Bitewing and Occlusal [4]. Intraoral radiograph is the back bone of dentistry [5]. Periapical is the most commonly used intraoral radiograph. Periapical radiographs are used for the pre-operative planning and evaluation because of its simplicity, significantly lower cost, less radiation