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Chinese Journal of Stomatology ; (12): 248-252, 2013.
Artigo em Chinês | WPRIM | ID: wpr-293599

RESUMO

<p><b>OBJECTIVE</b>To investigate the repeatability of three-dimensional (3-D) cephalometric measurements for the clinical application of 3-D cephalometry.</p><p><b>METHODS</b>Forty-nine measurements that widely used in traditional cephalometric analyses were defined in 3-D cone-beam CT (CBCT) images. Three examiners identified landmarks on CBCT images of 17 subjects with normal occlusion, respectively, and 3-D measurements were exported automatically by software SimPlant. Inter-examiner reliability correlation coefficients (ICC) were obtained for all measurements.</p><p><b>RESULTS</b>Repeatability of 36 measurements was high (ICC value greater than 0.9), including SNA, SNB. Repeatability of 11 measurements was moderate (ICC value between 0.8 and 0.9), including CoL-GoL, CoL-MSP. Repeatability of 2 measurements was low (ICC value lower than 0.8), including Gn-MSP and MPR-MSP.</p><p><b>CONCLUSIONS</b>Most 3-D cephalometric measurements based on CBCT had high repeatability. However, some 3-D cephalometric measurements had limited repeatability.</p>


Assuntos
Humanos , Cefalometria , Tomografia Computadorizada de Feixe Cônico , Imageamento Tridimensional , Variações Dependentes do Observador , Reprodutibilidade dos Testes
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