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ENDODONTIA MODERNA OBJETIVANDO RESULTADOS CLÍNICOS

ENDODONTIA MODERNA OBJETIVANDO RESULTADOS CLÍNICOS
EEC

domingo, 24 de junho de 2012

JOE june 2012 - Use of Large-volume Cone-Beam Computed Tomography in Identification and Localization of Horizontal Root Fracture in the Presence and Absence of Intracanal Metallic Post


Use of Large-volume Cone-Beam Computed Tomography in Identification and Localization of Horizontal Root Fracture in the Presence and Absence of Intracanal Metallic Post

Felipe Ferreira Costa, DDS, Bruno Felipe Gaia, DDS, Otavio Shoiti Umetsubo, DDS, MS, Lucas Rodrigues Pinheiro, DDS, Isabel Peixoto Tortamano, DDS, MS, PhD,
and Marcelo Gusmão Paraiso Cavalcanti, DDS, MD, PhD


Abstract
Introduction: The objective of the study was to eval- uate 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%). Intraob- server 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 in- traobserver and interobserver agreement reflect the diffi- culty in performing an adequate diagnosis of horizontal root fractures through a large-volume CBCT by using a small voxel reconstruction. (J Endod 2012;38:856–859)
Key Words
Cone-beam computed tomography scanning, diagnosis, horizontal root fracture 


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