Panoramic Imaging Disadvantages

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2.19.3 The Main Advantages of Panoramic Imaging Broad coverage of facial bones and teeth, low radiation dose, ease of panoramic radiographic technique, and other advantages e.g. it can be used in patients complain of trismus and in patients who cannot withstand the intraoral radiography. Quick and convenient radiographic technique, useful visual aid in patient education and case presentation (Stuart, 2014).
2.19.5 Disadvantages of Panoramic Imaging Lower resolution images that do not provide the fine details provided by intraoral radiographs. Magnification across image is unequal, making liner measurements unreliable. Image is superimposition of real, double, and ghost images and requires careful visualization to decipher anatomic and pathologic details. Requires accurate patient positioning to avoid positioning errors and artifacts. Difficult to image both jaws when patient …show more content…

Although there is a rare situation where positioning of the patient or an ectopic tooth places the tooth out of the focal through, all the teeth are generally seen on the image. Thus, the interpretation must always include identification of all erupted and developing teeth. The OPG are examined for abnormalities of number, position, and anatomy. Existing dentistry, including endodonic obturations, crown, and other fixed restorations, should be noted. Excessively wide or narrow anterior teeth suggest malposition of the patient in the focal trough. Similarly, teeth that are wider on one side than the other suggests that the patient's sagittal plane was rotated. Gross caries and periapical and peridontal disease may be evident. However, the resolution of a panoramic radiograph is lower than that of intra oral radiographs, and additional intraoral radiographs may be needed to detect subtle disease the proximal surfaces of premolar teeth often overlap, which interfere with caries

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