Accuracy of assessing the mandibular canal on cone-beam computed tomography: a validation study
| Autor: | N.L. Gerlach, Ewald M. Bronkhorst, Thomas J.J. Maal, Stefaan J. Bergé, G.J. Meijer, H. Ghaeminia |
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| Rok vydání: | 2014 |
| Předmět: |
Validation study
Cone beam computed tomography Plastic Embedding Cephalometry Coloring agents Mandibular canal Mandible Computed tomographic Dental Arch Imaging Three-Dimensional stomatognathic system Cadaver Image Processing Computer-Assisted Rosaniline Dyes Dentition Humans Jaw Edentulous Methylmethacrylates Medicine Statistical analysis Coloring Agents Orthodontics Anatomy Cross-Sectional business.industry Other Research Radboud Institute for Health Sciences [Radboudumc 0] Cone-Beam Computed Tomography equipment and supplies Methylene Blue Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10] medicine.anatomical_structure Otorhinolaryngology Surgery sense organs Oral Surgery business |
| Zdroj: | Journal of Oral and Maxillofacial Surgery, 72, 4, pp. 666-71 Journal of Oral and Maxillofacial Surgery, 72, 666-71 |
| ISSN: | 0278-2391 |
| Popis: | Item does not contain fulltext PURPOSE: To establish the accuracy of cone-beam computed tomographic (CBCT) views in determining the position and diameter of the mandibular canal. MATERIALS AND METHODS: Two freshly frozen cadaver heads, 1 dentate and 1 edentate, were used to acquire CBCT scans. Measurements on cross-sectional CBCT images were compared with measurements on digitized histologic sections of the same regions in the mandibles. The Student t test was used for statistical analysis. RESULTS: Comparing CBCT with histologic measurements showed that the position of the mandibular canal differed up to 0.47 mm (standard deviation, 0.29 mm). Mandibular canal diameters were up to 22.8% smaller in the CBCT planes. For the dentate jaw, these differences were statistically significant. CONCLUSION: To be safe, when assessing the mandibular canal position on CBCT views, a 0.76-mm deviation should be taken into account. Because the diameter of the mandibular canal is displayed smaller, an enlargement by 0.74 mm is recommended. |
| Databáze: | OpenAIRE |
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