A retrospective comparison of the location and diameter of the inferior alveolar canal at the mental foramen and length of the anterior loop between American and Taiwanese cohorts using CBCT |
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Authors: | Judy Chia-Hui Chen Li-Min Lin James R Geist Jing-Yi Chen Chung-Ho Chen Yuk-Kwan Chen |
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Institution: | 1. School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, Taiwan 2. Division of Oral Pathology and Diagnosis, Kaohsiung Medical University Chung-Ho Memorial Hospital, 100 Shih-Chuan 1st Road, Kaohsiung, Taiwan 3. Oral and Maxillofacial Imaging Center, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, Taiwan 4. Department of Biomedical and Diagnostic Sciences, School of Dentistry, University of Detroit Mercy, 2700 Martin Luther King Jr. Blvd, Detroit, MI, 48208-2576, USA 5. Division of Oral and Maxillofacial Surgery, Kaohsiung Medical University Chung-Ho Memorial Hospital, 100 Shih-Chuan 1st Road, Kaohsiung, Taiwan
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Abstract: | Purpose The aim was to retrospectively compare the measurements of the location and size of the inferior alveolar canal at the mental foramen and the length of the anterior loop between two cohorts of Americans and Taiwanese using cone-beam computed tomography (CBCT). Methods CBCT was performed with an I-CAT® Cone-Beam 3D Dental Imaging System and reconstructed into multiple-plane views to measure two populations. Results There was no statistically significant difference (P = 0.2681) in the distance from the mental foramen to the inferior border of the mandible (mandibular border height) between Americans (9.84 ± 2.01 mm) and Taiwanese (10.13 ± 1.66 mm). No significant difference was found (p = 0.1161) in the inferior alveolar canal diameter between these two cohorts (2.26 ± 0.67 and 2.13 ± 0.47 mm, respectively). However, the anterior loop length of Taiwanese (7.61 ± 1.81 mm) was significantly longer than that of Americans (6.22 ± 1.68 mm) (P < 0.0001). Conclusion Our study indicated that (1) the location of mental foramen of Americans was closer to the inferior border of the mandible than Taiwanese; (2) the diameter of the inferior alveolar canal of Americans was larger than Taiwanese; (3) the anterior loop of Taiwanese was longer than Americans. These differences may be, at least partly, due to the racial influence and this information may possess potential valuable clinical relevance. |
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