Periapical Repair Following Endodontic Surgery: Two- andThree-Dimensional Imaging Evaluation Methods

• Autor(a) principal: Jorge, Érica Gouveia
• Data de Publicação: 2015
• Outros Autores: Tanomaru-filho, Mario, Guerreiro-tanomaru, Juliane Maria, Reis, José Maurício Dos Santos Nunes, Spin-neto, Rubens, Gonçalves, Marcelo
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/0103-6440201300252; http://hdl.handle.net/11449/126195
• topic: Bone repair; radiography; computed tomography; diagnosis; endodontics

This study quantitatively assessed the periapical bone repair following endodonticsurgery, using planimetric evaluation based on two- (conventional and digitalintraoral radiographic images - IRs) and three-dimensional (cone beam computedtomography - CBCT) evaluation. Eleven maxillary anterior teeth (of 11 patients) withperiapical bone lesions and indication for surgical endodontic treatment wereselected. IRs and CBCT images were acquired before the endodontic surgery, and 48 h,4, and 8-months after the surgery. In each period of evaluation, the area (mm2) of the bone lesion was measured in the images, and the values forthe three methods were compared. The area in the CBCT images was measured in themesio-distal sections comprising the largest diameter of the lesion. Data weresubmitted to repeated measures 2-way ANOVA and t-tests with Bonferroni correction.There was significant difference between the periods of evaluation(p=0.002) regarding the assessed periapical bone lesion area. There was nostatistically significant difference between the methods of evaluation (p=0.023). In the CBCT images the lesion areas were 10% largerthan those observed in the conventional IRs (22.84 mm2) and 15% largerthan those observed in the digital IRs (21.48 mm2). From the baseline(40.12 mm2) to 4 (20.06 mm2) and 8-months (9.40mm2), reductions of 50 and 77% in the lesion area, respectively, wereobserved (p<0.0001). From 4 to 8-months, this value was 53%. Progressive bonerepair could be seen from 48h to 8-months following endodontic surgery based on two-(conventional and digital IRs) and three-dimensional (CBCT) evaluation. CBCT imageprovided results similar to those assessed by means of IRs.