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Periapical Repair Following Endodontic Surgery: Two- and Three-Dimensional Imaging Evaluation Methods
Jorge, Érica Gouveia; Tanomaru-Filho, Mario; Guerreiro-Tanomaru, Juliane Maria; Reis, José Maurício dos Santos Nunes; Spin-Neto, Rubens; Gonçalves, Marcelo.
  • Jorge, Érica Gouveia; UNESP - Univ Estadual Paulista. Araraquara Dental School. Department of Restorative Dentistry. Araraquara. BR
  • Tanomaru-Filho, Mario; UNESP - Univ Estadual Paulista. Araraquara Dental School. Department of Restorative Dentistry. Araraquara. BR
  • Guerreiro-Tanomaru, Juliane Maria; UNESP - Univ Estadual Paulista. Araraquara Dental School. Department of Restorative Dentistry. Araraquara. BR
  • Reis, José Maurício dos Santos Nunes; UNESP - Univ Estadual Paulista. Araraquara Dental School. Department of Restorative Dentistry. Araraquara. BR
  • Spin-Neto, Rubens; UNESP - Univ Estadual Paulista. Araraquara Dental School. Department of Restorative Dentistry. Araraquara. BR
  • Gonçalves, Marcelo; UNESP - Univ Estadual Paulista. Araraquara Dental School. Department of Restorative Dentistry. Araraquara. BR
Braz. dent. j ; 26(1): 69-74, Jan-Feb/2015. tab, graf
Article in English | LILACS | ID: lil-735843
ABSTRACT
This study quantitatively assessed the periapical bone repair following endodontic surgery, using planimetric evaluation based on two- (conventional and digital intraoral radiographic images - IRs) and three-dimensional (cone beam computed tomography - CBCT) evaluation. Eleven maxillary anterior teeth (of 11 patients) with periapical bone lesions and indication for surgical endodontic treatment were selected. 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 for the three methods were compared. The area in the CBCT images was measured in the mesio-distal sections comprising the largest diameter of the lesion. Data were submitted 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 no statistically significant difference between the methods of evaluation (p=0.023). In the CBCT images the lesion areas were 10% larger than those observed in the conventional IRs (22.84 mm2) and 15% larger than those observed in the digital IRs (21.48 mm2). From the baseline (40.12 mm2) to 4 (20.06 mm2) and 8-months (9.40 mm2), reductions of 50 and 77% in the lesion area, respectively, were observed (p<0.0001). From 4 to 8-months, this value was 53%. Progressive bone repair could be seen from 48h to 8-months following endodontic surgery based on two- (conventional and digital IRs) and three-dimensional (CBCT) evaluation. CBCT images provided results similar to those assessed by means of IRs.
RESUMO
Este estudo avaliou quantitativamente a reparação óssea periapical após cirurgia parendodôntica, utilizando avaliação planimétrica bidimensional (imagens convencionais e digitais intraorais radiográficas-IRs) e tridimensional (CBCT). Onze dentes anteriores da maxila (de 11 pacientes) com lesões ósseas periapicais e indicação de tratamento endodôntico cirúrgico foram selecionados. IRs e imagens tomográficas foram obtidas antes da cirurgia parendodôntica, e 48 h, 4 e 8 meses após a cirurgia. Para cada período, a área (mm2) de rarefação óssea foi mensurada, e os valores para os três métodos comparados. A área nas imagens de CBCT foi mensurada nas seções mésio-distal, compreendendo o maior diâmetro da lesão. Os dados foram submetidos à análise de variância de medidas repetidas a dois critérios e teste T com correção de Bonferroni. Houve diferença significativa entre os períodos de avaliação (p=0,002) em relação à área de lesão óssea periapical mensurada. Não houve diferença significativa entre os métodos de avaliação (p=0,023). Nas imagens tomográficas as áreas das lesões foram 10% maiores do que as observados nas IRs convencionais (22,84 mm2) e 15% maior do que àquelas das digitais (21,48 mm2). A partir dos valores baseline (40,12 mm2) a 4 (20,06 mm2) e 8 meses (9,40 mm2), foram observadas reduções de 50 e 77%, respectivamente, na área das lesões (p<0,0001). De 4 a 8 meses, esse valor foi de 53%. Entre o período de 48h a oito meses após as cirurgias parendodônticas foram observadas reparações ósseas progressivas nas avaliações bidimensionais (IRs convencional e digital) e tridimensional (CBCT). A CBCT produziu resultados semelhantes aqueles avaliados por meio das IRs.
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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Therapy / Radiography, Dental / Alveolar Bone Loss / Imaging, Three-Dimensional / Cone-Beam Computed Tomography / Incisor / Maxilla Limits: Adult / Female / Humans / Male Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: UNESP - Univ Estadual Paulista/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Therapy / Radiography, Dental / Alveolar Bone Loss / Imaging, Three-Dimensional / Cone-Beam Computed Tomography / Incisor / Maxilla Limits: Adult / Female / Humans / Male Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: UNESP - Univ Estadual Paulista/BR