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Int J Oral Maxillofac Surg ; 45(11): 1333-1340, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27288267

RESUMO

The aim of this study was to propose a classification for unilateral cleft lip and palate (UCLP) malformations based on cone beam computed tomography (CBCT) images, as well as to estimate the amount of bone necessary for grafting, and to evaluate the relationship of this volume with scores obtained using the classification. CBCT images of 33 subjects with UCLP were evaluated according to gap, arch, nasal, and dental parameters (GAND classification). Additionally, these defects were segmented and the amount of graft needed for alveolar bone grafting was estimated. The reproducibility of GAND classification was analyzed by weighted kappa test. The association of volume assessment with the classification (gap and nasal parameters) was verified using analysis of variance, while the intra-observer agreement was analyzed using the intra-class correlation coefficient. The intra-observer reproducibility of the classification ranged from 0.29 to 0.92 and the inter-observer agreement ranged from 0.29 to 0.91. There were no statistically significant values when evaluating the association of the volume with the classification (P>0.05). The GAND classification is a novel system that allows the quick estimation of the extent and complexity of the cleft. It is not possible to estimate the amount of bone needed for alveolar bone grafting based on the classification; individualized surgical planning should be done for each patient specifically.


Assuntos
Fenda Labial/diagnóstico por imagem , Fissura Palatina/diagnóstico por imagem , Tomografia Computadorizada de Feixe Cônico , Fenda Labial/classificação , Fissura Palatina/classificação , Arco Dental/anormalidades , Arco Dental/diagnóstico por imagem , Humanos , Nariz/anormalidades , Nariz/diagnóstico por imagem , Variações Dependentes do Observador , Reprodutibilidade dos Testes , Anormalidades Dentárias/classificação , Anormalidades Dentárias/diagnóstico por imagem
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