Cone-beam Computed Tomographic and Micro–computed Tomographic Evaluations of the Root Apexes of Teeth with Posttreatment Apical Periodontitis
| Autor: | José C. Provenzano, Felipe Augusto Restrepo-Restrepo, Sergio Iván Tobón-Arroyave, Juliana P. Calvo-Trejos, Diana M. Restrepo-Patiño, José F. Siqueira, P. A. Villa‐Machado, Flávio R.F. Alves |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Cone beam computed tomography Root canal Computed tomographic Lesion 03 medical and health sciences 0302 clinical medicine stomatognathic system medicine Humans General Dentistry Orthodontics Periodontitis Periapical radiolucency business.industry X-Ray Microtomography 030206 dentistry Cone-Beam Computed Tomography medicine.disease Cbct imaging Root Canal Therapy 030104 developmental biology medicine.anatomical_structure Tomography Dental Pulp Cavity medicine.symptom business Periapical Periodontitis |
| Zdroj: | Journal of Endodontics. 46:1695-1701 |
| ISSN: | 0099-2399 |
| DOI: | 10.1016/j.joen.2020.07.009 |
| Popis: | Introduction This study evaluated the association of different variables that may influence the outcome of root canal treatment through cone-beam computed tomographic (CBCT) and micro–computed tomography (micro-CT) assessments of root apexes obtained by endodontic microsurgery of teeth with posttreatment apical periodontitis (AP), the agreement between CBCT and micro-CT findings, and the association of these variables with symptoms or lesion size. Methods Clinical and CBCT records and root apexes obtained by endodontic microsurgery from 11 cases of symptomatic AP and 22 cases of asymptomatic AP were available. Apical root specimens were further scanned using micro-CT imaging. CBCT parameters included periapical radiolucency size, apical extent/density of root canal filling, and occurrence of procedural errors. Micro-CT images evaluated the same parameters plus the presence of filling material in lateral canals and ramifications, the volume of the filled/nonfilled apical root canal, and the percentage of the nonfilled canal space. The agreement between CBCT/micro-CT observations was evaluated. Results Mandibular teeth, a lesion size Conclusions Tooth location, lesion size, the nonfilled apical canal volume, and the percentage of the nonfilled apical canal volume were associated with symptomatic AP. In addition, lesion size was significantly associated with tooth location and apical root canal filling density. CBCT imaging may not provide a reliable evaluation of procedural errors associated with posttreatment disease. |
| Databáze: | OpenAIRE |
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