en Radiology Radiology Original Article Original Article <p><span style="font-family:Times New Roman;"><span style="font-size:12pt"><span style="line-height:13.5pt"><b><i><span style="font-size:10.0pt"><span style="color:blue">Background</span></span></i></b><i><span style="font-size:10.0pt"><span style="color:blue">:</span></span></i><span style="font-size:10.0pt"> Cone Beam Computed Tomography (CBCT) is used to evaluate the hard tissue of the maxillofacial area, and the dose received by the patient depends on the resolution of the&nbsp;images.<b> </b>This study investigated the effect of CBCT resolution (voxel size) on its linear measurement accuracy.</span></span></span><br> <span style="font-size:12pt"><span style="line-height:13.5pt"><b><i><span style="font-size:10.0pt"><span style="color:blue">Methods:</span></span></i></b> <span style="font-size:10.0pt">This <i>in vitro</i> study was conducted on 19 human mandibles and 11 dry maxillae. On each jaw, four anterior and four posterior regions were examined. Markers were placed in the designated areas using gutta-percha. The jaws were scanned at three voxel sizes (100, 150, 200 &micro;m). The bone height and thickness were measured in the prepared images and compared with the sizes obtained. Paired t-test, t-test, one-way ANOVA, and Tukey&rsquo;s post-hoc tests were used for&nbsp;statistical analysis.</span></span></span><br> <span style="font-size:12pt"><span style="line-height:13.5pt"><b><i><span style="font-size:10.0pt"><span style="color:blue">Results:</span></span></i></b> <span style="font-size:10.0pt">Buccal and lingual bone height measurements showed significant differences across voxel sizes (p < 0.05), with higher resolution (100 &micro;m) yielding greater accuracy. No significant difference was found in bone thickness measurements between resolutions (p = 0.20). Height measurements were significantly less accurate in anterior than posterior regions (p < 0.05). No significant difference was observed between maxilla and mandible except for buccal height at medium and standard resolutions. All CBCT measurements underestimated actual dimensions. Thickness measurements were more accurate than height measurements.</span></span></span><br> <span style="font-size:12pt"><span style="line-height:13.5pt"><b><i><span style="font-size:10.0pt"><span style="color:blue">Conclusion</span></span></i></b><i><span style="font-size:10.0pt"><span style="color:blue">:</span></span></i> <span style="font-size:10.0pt">Using high resolution in CBCT machines is recommended to reduce linear measurement error when there is a&nbsp;short distance to the critical anatomical structures.</span></span></span></span><br> &nbsp;</p> Cone-Beam Computed Tomography, Mandible, Maxilla 136 142 http://caspjim.com/browse.php?a_code=A-10-3216-3&slc_lang=en&sid=1 Ehsan Moudi Ehsan.moudi@gmail.com 100319475328460055820 100319475328460055820 No Oral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, IR Iran Melika Mollaei Melika.mollaei.7@gmail.com 100319475328460055821 100319475328460055821 No Dental Research Center, Student Research Committee, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran Sina Haghanifar dr_haghanifar@yahoo.com 100319475328460055822 100319475328460055822 No Oral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, IR Iran Atefeh Gholampour atefehgholampour70@yahoo.com 100319475328460055823 100319475328460055823 Yes Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran Ali Bijani alibijani@yahoo.com 100319475328460055824 100319475328460055824 No Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, IR Iran