INTRODUCTION: The objective of the study was to evaluate the ability of large-volume cone-beam computed tomography (CBCT) to detect horizontal root fracture and to test the influence of a metallic post. METHODS: Through the examination of 40 teeth by large-volume CBCT (20-cm height and 15-cm diameter cylinder) at 0.2-mm voxel resolution, 2 observers analyzed the samples for the presence and localization of horizontal root fracture. RESULTS: The values of accuracy in the groups that had no metallic post ranged from 33%-68%, whereas for the samples with the metallic post, values showed a wide variation (38%-83%). Intraobserver agreement showed no statistically significant difference between the groups with/without metallic post; both ranged from very weak to weak (kappa, 0.09-0.369). CONCLUSIONS: The low accuracy and low intraobserver and interobserver agreement reflect the difficulty in performing an adequate diagnosis of horizontal root fractures through a large-volume CBCT by using a small voxel reconstruction.
INTRODUCTION: The objective of the study was to evaluate the ability of large-volume cone-beam computed tomography (CBCT) to detect horizontal root fracture and to test the influence of a metallic post. METHODS: Through the examination of 40 teeth by large-volume CBCT (20-cm height and 15-cm diameter cylinder) at 0.2-mm voxel resolution, 2 observers analyzed the samples for the presence and localization of horizontal root fracture. RESULTS: The values of accuracy in the groups that had no metallic post ranged from 33%-68%, whereas for the samples with the metallic post, values showed a wide variation (38%-83%). Intraobserver agreement showed no statistically significant difference between the groups with/without metallic post; both ranged from very weak to weak (kappa, 0.09-0.369). CONCLUSIONS: The low accuracy and low intraobserver and interobserver agreement reflect the difficulty in performing an adequate diagnosis of horizontal root fractures through a large-volume CBCT by using a small voxel reconstruction.
Authors: T Kulczyk; M Dyszkiewicz Konwińska; M Owecka; J Krzyżostaniak; A Surdacka Journal: Dentomaxillofac Radiol Date: 2014-07-02 Impact factor: 2.419
Authors: Rebeca Ferraz de Menezes; Natália Costa de Araújo; Joedy Maria Costa Santa Rosa; Vanda Sanderana Macêdo Carneiro; Alexandrino Pereira Dos Santos Neto; Vânio Costa; Lara Marques Moreno; Jéssica Meirinhos Miranda; Diana Santana de Albuquerque; Mônica Albuquerque; Roberto Alves Dos Santos; Marleny Elizabeth Márquez de Martínez Gerbi Journal: BMC Oral Health Date: 2016-04-14 Impact factor: 2.757