The effect of two enhancement tools on the assessment of the relationship between third molars and the inferior alveolar canal.

Autor: Peixoto LR; Department of Oral Diagnosis, Federal University of Paraíba, João Pessoa, PB, Brazil. Electronic address: larissarngl@gmail.com., Gonzaga AK; Department of Oral Pathology, Federal University of Rio Grande do Norte, Natal, RN, Brazil. Electronic address: amandaggonzaga@gmail.com., Melo SL; Department of Oral Pathology, Radiology & Medicine, The University of Iowa College of Dentistry, Iowa City, IA, USA. Electronic address: sauloleonardo-sousamelo@uiowa.edu., Pontual ML; Department of Clinical and Preventive Dentistry, Federal University of Pernambuco, Recife, PE, Brazil. Electronic address: mlpontual@gmail.com., Pontual Ados A; Department of Clinical and Preventive Dentistry, Federal University of Pernambuco, Recife, PE, Brazil. Electronic address: andreapontual@hotmail.com., de Melo DP; Department of Oral Diagnosis, State University of Paraíba, Campina Grande, PB, Brazil. Electronic address: danipita@gmail.com.
Jazyk: angličtina
Zdroj: Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery [J Craniomaxillofac Surg] 2015 Jun; Vol. 43 (5), pp. 637-42. Date of Electronic Publication: 2015 Mar 17.
DOI: 10.1016/j.jcms.2015.03.008
Abstrakt: Objective: This study aims to assess the relationship between the inferior alveolar canal (IAC) and inferior third molars using digital panoramic images (DPI) with and without enhancement and compare the panoramic signs with cone beam computed tomography (CBCT) findings.
Methods: The DPIs and CBCT of 50 patients were analyzed. The DPIs were copied and enhanced using edge enhancement and an invert tool and then analyzed by two observers using the scores: darkening of the root; deflection of the root; narrowing of the root; superimposition of the root; bifurcation of the root over the IAC; diversion of the IAC; interruption of the cortex of the IAC, and no radiographic findings noted. Kappa and exact binominal tests were used to analyze the correlation between DPIs and CBCT images. The intimate relationship scores were evaluated using a t-test and Mann-Whitney test.
Results: The original DPIs, and the edge enhanced and invert tool images produced kappa coefficients of 0.528, 0.528 and 0.551, respectively. There was no difference among the methods evaluated in this study (p = 0.981).
Conclusion: Similar agreement was observed between DPIs with and without enhancement. However, panoramic radiography is not the ideal method to analyze the relationship between lower third molars and the IAC.
(Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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