Aspects of panoramic radiography in general dental practice

Rushton, V E; Horner, Keith; Worthington, Helen V

doi:10.1038/sj.bdj.4800098

Cited by 35 publications

(17 citation statements)

References 9 publications

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“…The percentage was probably low in the former study2 because the radiographs in that study were being submitted for claim purposes and it was likely that the dentist might have repeated poor quality films to avoid risk of claim rejection. The percentage in the latter study7 was higher because the radiographs were collected from 41 dentists, and it was previously reported that over one third of dentists in a questionnaire survey used unqualified personnel to take panoramic radiographs 21. In our study, radiographs were taken by several trained technicians.…”

Section: Discussionmentioning

confidence: 70%

Positioning errors and quality assessment in panoramic radiography

Dhillon¹,

Raju

Verma

et al. 2012

Imaging Sci Dent

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PurposeThis 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 MethodsThis 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'.ResultsOut 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.ConclusionThe 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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Section: Discussionmentioning

confidence: 70%

Positioning errors and quality assessment in panoramic radiography

Dhillon¹,

Raju

Verma

et al. 2012

Imaging Sci Dent

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“…Panoramic radiography has been widely used as a diagnostic tool because it is easy to provide a radiographic overview of the teeth and surrounding anatomical structures 1,2. Recently, a number of dental practitioners have come to prefer digital radiography over conventional film radiography 3-6.…”

Section: Introductionmentioning

confidence: 99%

Effective dose from direct and indirect digital panoramic units

2013

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PurposeThis study aimed to provide comparative measurements of the effective dose from direct and indirect digital panoramic units according to phantoms and exposure parameters.Materials and MethodsDose measurements were carried out using a head phantom representing an average man (175 cm tall, 73.5 kg male) and a limbless whole body phantom representing an average woman (155 cm tall, 50 kg female). Lithium fluoride thermoluminescent dosimeter (TLD) chips were used for the dosimeter. Two direct and 2 indirect digital panoramic units were evaluated in this study. Effective doses were derived using 2007 International Commission on Radiological Protection (ICRP) recommendations.ResultsThe effective doses of the 4 digital panoramic units ranged between 8.9 µSv and 37.8 µSv. By using the head phantom, the effective doses from the direct digital panoramic units (37.8 µSv, 27.6 µSv) were higher than those from the indirect units (8.9 µSv, 15.9 µSv). The same panoramic unit showed the difference in effective doses according to the gender of the phantom, numbers and locations of TLDs, and kVp.ConclusionTo reasonably assess the radiation risk from various dental radiographic units, the effective doses should be obtained with the same numbers and locations of TLDs, and with standard hospital exposure. After that, it is necessary to survey the effective doses from various dental radiographic units according to the gender with the corresponding phantom.

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“…Since its introduction into the general practice of dentistry, panoramic radiography has become a popular and valuable diagnostic tool 3,4. Panoramic radiography has been used for routine screening of patients at various institutions and private clinic because it allows examination of the entire dentition, alveolar bone, temporomandibular joints, and adjacent structures easily 5,6…”

Section: Introductionmentioning

confidence: 99%

Assessment of panoramic radiography as a national oral examination tool: review of the literature

Choi

2011

Imaging Sci Dent

103

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PurposeThe purpose of this review is to evaluate the possibility of panoramic radiography as a national oral examination tool.Materials and MethodsThis report was carried out by review of the literatures.ResultsPanoramic radiography has sufficient diagnostic accuracy in dental caries, periodontal diseases, and other lesions. Also, the effective dose of panoramic radiography is lower than traditional full-mouth periapical radiography.ConclusionPanoramic radiography will improve the efficacy of dental examination in national oral examination. However, more studies are required to evaluate the benefit, financial cost, and operation time and also to make selection criteria and quality management program.

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Aspects of panoramic radiography in general dental practice

Cited by 35 publications

References 9 publications

Positioning errors and quality assessment in panoramic radiography

Positioning errors and quality assessment in panoramic radiography

Effective dose from direct and indirect digital panoramic units

Assessment of panoramic radiography as a national oral examination tool: review of the literature

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