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      Positioning errors and quality assessment in panoramic radiography

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          Abstract

          Purpose

          This study was performed to determine the relative frequency of positioning errors, to identify those errors directly responsible for diagnostically inadequate images, and to assess the quality of panoramic radiographs in a sample of records collected from a dental college.

          Materials and Methods

          This study consisted of 1,782 panoramic radiographs obtained from the Department of Oral and Maxillofacial Radiology. The positioning errors of the radiographs were assessed and categorized into nine groups: the chin tipped high, chin tipped low, a slumped position, the patient positioned forward, the patient positioned backward, failure to position the tongue against the palate, patient movement during exposure, the head tilted, and the head turned to one side. The quality of the radiographs was further judged as being 'excellent', 'diagnostically acceptable', or 'unacceptable'.

          Results

          Out of 1,782 radiographs, 196 (11%) were error free and 1,586 (89%) were present with positioning errors. The most common error observed was the failure to position the tongue against the palate (55.7%) and the least commonly experienced error was patient movement during exposure (1.6%). Only 11% of the radiographs were excellent, 64.1% were diagnostically acceptable, and 24.9% were unacceptable.

          Conclusion

          The positioning errors found on panoramic radiographs were relatively common in our study. The quality of panoramic radiographs could be improved by careful attention to patient positioning.

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          Most cited references 23

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          A Coefficient of Agreement for Nominal Scales

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            Practical statistics for medical researched

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              The Kappa Statistic: A Second Look

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                Author and article information

                Journal
                Imaging Sci Dent
                Imaging Sci Dent
                ISD
                Imaging Science in Dentistry
                Korean Academy of Oral and Maxillofacial Radiology
                2233-7822
                2233-7830
                December 2012
                23 December 2012
                : 42
                : 4
                : 207-212
                Affiliations
                Department of Oral Medicine and Radiology, ITS Centre for Dental Studies and Research, Ghaziabad, India.
                [* ]Department of Oral Medicine and Radiology, Teerthanker Mahavir Dental College, Moradabad, India.
                [** ]Department of Oral Medicine and Radiology, Kothiwal Dental College and Research Centre, Moradabad, India.
                [*** ]Department of Pedodontics and Preventive Dentistry, IDST Dental College and Research Centre, Modinagar, India.
                Author notes
                Correspondence to: Dr. Manu Dhillon. Department of Oral Medicine and Radiology, ITS Centre for Dental Studies and Research, Delhi-Meerut Road, Muradnagar-201206, Ghaziabad, Uttar Pradesh, India. Tel) 91-9219-510522, Fax) 91-1232-225380, drmanudhillon@ 123456yahoo.co.in
                Article
                10.5624/isd.2012.42.4.207
                3534173
                23301205
                Copyright © 2012 by Korean Academy of Oral and Maxillofacial Radiology

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                Categories
                Original Article

                Dentistry

                radiography, panoramic, quality control

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