Reliability of panoramic radiography in predicting proximity of third molars to the mandibular canal: A comparison using cone-beam computed tomography
| Autor: | Carlos Eduardo Pinto de Alcântara, Letícia Drumond De Abreu Guimarães, Willy James Porto Nunes, Aline Lisboa Vieira, Matheus Furtado de Carvalho, Francielle Silvestre Verner |
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| Rok vydání: | 2021 |
| Předmět: |
Molar
Cone beam computed tomography Mandibular Nerve Radiography Mandibular nerve Mandibular canal Computed tomography 030218 nuclear medicine & medical imaging 03 medical and health sciences Tooth root 0302 clinical medicine stomatognathic system Radiography Panoramic Medicine Radiology Nuclear Medicine and imaging General Dentistry Orthodontics Radiological and Ultrasound Technology medicine.diagnostic_test business.industry 030206 dentistry Third Molar stomatognathic diseases medicine.anatomical_structure Original Article Cone-beam Computed Tomography sense organs business |
| Zdroj: | Imaging Science in Dentistry |
| ISSN: | 2233-7830 2233-7822 |
| DOI: | 10.5624/isd.20200095 |
| Popis: | Purpose The purpose of this study was to analyze the reliability of 7 panoramic radiographic signs for predicting proximity of the root apices of mandibular third molars to the mandibular canal using cone-beam computed tomography and to correlate these findings with the Pell and Gregory and the Winter classification systems. Materials and Methods An observational, cross-sectional, descriptive study was conducted on 74 patients with bilateral impacted mandibular third molars. Four panoramic radiographic signs were observed in the tooth root (darkening, deflection, and narrowing of the root apices, and bifid apices), and another 3 in the mandibular canal (diversion, narrowing, and interruption of the mandibular canal). Cone-beam computed tomography images were analyzed to identify disruption and diversion of the mandibular canal and root deflection. Results Binary logistic regression showed that only 4 of the 7 panoramic radiographic signs were able to predict proximity of the root apices of the mandibular third molars to the mandibular canal: darkening of the root, deflection of the root, narrowing of the root, and interruption of the mandibular canal (P |
| Databáze: | OpenAIRE |
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