Aktan, Ali MuratHaştar, EsinÇiftçi, Mehmet ErtuğrulAkgünlü, Faruk2020-03-262020-03-262012Aktan, A. M., Haştar, E., Çiftçi, E., Akgünlü, F. (2012). The Effect of Different Head Positioning in Panoramic Radiography on Radiomorphometric Indexes. Cumhuriyet Dental Journal, 15(1), 16-26.2146-2852https://dx.doi.org/10.7126/cdj.2012.861https://hdl.handle.net/20.500.12395/28705Objectives: The purpose of this study was to examine the effect of varying horizontal and vertical head rotations on measurements of the panoramic mandibular index and mental index (cortical width of mandibula) on panoramic radiography. Material and Methods: It was designed a mechanism that could imitate natural head movements (the right-left turn movement/X-plane, tilt up and down movement/Y-plane and right-toside tilting movement/ Z-plane) in three dimensions of the skull taken from cadavers. In this model, it was obtained a total of 66 digital panoramic radiographs with 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 15 degrees on each plane (+) and (-) directions. Mental and panoramic mandibular index were measured on each radiograph. Results: When the angle of the head increases above 7 degrees in the X-plane and on (+) direction of the Y-plane, 9 and 11 degrees on (-) direction of the Y-plane, 6 and 7 degrees on both (+) and (-) direction of the Z-plane, the mental index measurements were different statistically significant from measurements of the ideal head position. In some of the measurements in the X plane and when the angle of the head increases above 3 degrees on (+) direction in the Y plane, 1, 6 and 7 degrees on (+) direction in the Z plane and, the panoramic mandibular index measurements were different statistically significant from measurements of the ideal head position. Conclusion: For true measurements on panoramic radiography, proper positioning of the patient's head is important.tr10.7126/cdj.2012.861info:eu-repo/semantics/openAccessAssymetry indexMental indexPanoramic mandibular indexPanoramic radiographyArticle1511626Q4