Detection of vertical root fractures in endodontically treated teeth in the absence and in the presence of metal post by cone-beam computed tomography

BMC Oral Health

Research Article

Vânio Costa¹  Alexandrino Pereira dos Santos Neto²  Mônica Albuquerque²  Rebeca Ferraz de Menezes²  Diana Santana de Albuquerque²  Joedy Maria Costa Santa Rosa²  Roberto Alves dos Santos²  Marleny Elizabeth Márquez de Martínez Gerbi³  Lara Marques Moreno³  Natália Costa de Araújo³  Vanda Sanderana Macêdo Carneiro³  Jéssica Meirinhos Miranda³ 

[1] Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Federal University of Alagoas, Lourival Melo Mota Avenue, S/N - Tabuleiro dos Martins, Zipe Code: 57072-900, Maceió, AL, Brazil;Department of Endodontics, Faculty of Dentistry, University of Pernambuco, 1650 Newton Cavalcanti Avenue, Zipe Code: 54753-020, Camaragibe, PE, Brazil;Department of Restorative Dentistry, Faculty of Dentistry, University of Pernambuco, 1650 Newton Cavalcanti Avenue, Zipe Code: 54753-020, Camaragibe, PE, Brazil;

关键词: Vertical root fracture;    Cone-Beam Computed Tomography;    Dental posts;   

DOI  :  10.1186/s12903-016-0207-y

 received in 2015-12-01, accepted in 2016-04-08,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundAim of this study was to investigate the influence of gutta-percha and metallic posts on the efficiency of Cone Beam Computed Tomography (CBCT) in diagnosing Vertical Root Fracture (VRF).MethodsForty-eight teeth were divided into 3 experimental and 3 control groups. The teeth of the first experimental group and the first control group received neither gutta-percha nor metal posts. The teeth of the second experimental group and the second control group were filled with gutta-percha, and the teeth of the third experimental group and the third control group were filled with the metal posts. The teeth of the experimental groups were artificially fractured. The teeth were evaluated through images taken by a Prexion scanner with a 0.1 mm resolution. Fisher’s exact test was used to measure the following values: sensitivity, false negative, specificity, false positive and accuracy for the VRF detection through the scanner. Three observers calibrated and blinded to the protocol evaluated the images.ResultsThe inter-observer Kappa coefficient was 0.83. The presence of posts and gutta-percha reduced the sensitivity and the accuracy in detecting the VRF. Regarding to the sensitivity (p = 0.837, p = 0.304, p = 0.837 for evaluator 1, 2 and 3, respectively) and specificity (p = 0.162, p = 0.056, p = 0.062 for evaluator 1, 2 and 3, respectively), Fisher’s exact test showed no statistically significant difference among the evaluated groups. However, a significant difference was observed in relation to the accuracy in the results of evaluator 2 (p = 0.03), which showed a much lower accuracy for the post group (50 %) than for the Nonfilled group (93.8 %).ConclusionsThe Prexion tomograph was precise in detecting vertical root fractures and the CBCT diagnostic ability was not influenced by the presence of posts or gutta-percha.

【 授权许可】

CC BY   
© Menezes et al. 2016