Outcome of Root Canal Treatment in Dogs Determined by Periapical Radiography and Cone-Beam Computed Tomography Scans |
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| Authors: | Francisco Wanderley Garcia de Paula-Silva Bassam Hassan Léa Assed Bezerra da Silva Mário Roberto Leonardo Min-Kai Wu |
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| Affiliation: | 1. Department of Pediatric Clinics, Preventive and Social Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, University of São Paulo, Ribeirão Preto, Brazil;2. Department of Oral and Maxillofacial Radiology, Academic Centre of Dentistry Amsterdam, Amsterdam, The Netherlands;3. Department of Cariology Endodontology Pedodontology, Academic Centre of Dentistry Amsterdam, Amsterdam, The Netherlands |
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| Abstract: | The purpose of this study was to compare the favorable outcome of root canal treatment determined by periapical radiographs (PRs) and cone beam computed tomography (CBCT) scans. Ninety-six roots of dogs' teeth were used to form four groups (n= 24). In group 1, root canal treatments were performed in healthy teeth. Root canals in groups 2 through 4 were infected until apical periodontitis (AP) was radiographically confirmed. Roots with AP were treated by one-visit therapy in group 2, by two-visit therapy in group 3, and left untreated in group 4. The radiolucent area in the PRs and the volume of CBCT-scanned periapical lesions were measured before and 6 months after the treatment. In groups 1, 2, and 3, a favorable outcome (lesions absent or reduced) was shown in 57 (79%) roots using PRs but only in 25 (35%) roots using CBCT scans (p = 0.0001). Unfavorable outcomes occurred more frequently after one-visit therapy than two-visit therapy when determined by CBCT scans (p = 0.023). |
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