改良上颌骨轴向切口对中腭缝合成熟度的断层成像评价

Luiz Fernando Tadano Miguita, A. Conti, R. R. Almeida-Pedrin, Fábio Pinto Guedes, Diego Luiz Tonello, Graziela Hernandes Volpato, L. C. Filho
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Two previously calibrated evaluators classified the axial images of the MPS into 5 maturational stages (A, B, C, D, and E) according to suture morphology. Kappa test was used to test intra and inter-examiner agreement and the sign test was used to compare the results of this study with those from the original method. Statistical significance level was set at 0.05%. The kappa values for intra and inter-examiner agreement were 0.88 and 0.69, respectively. The modified method was able to evaluate the MPS maturation status and could demonstrate stages of maturation in more detail than the original method.  Classification of the MPS maturation with the curved suture axial cut of this method is similar to the original method, with the advantage of allowing evaluation of maturation in the midline of the palate, even when the palate was curved and/or thick. \nKeywords: Sutures. Maxilla. 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引用次数: 0

摘要

摘要本研究旨在结合腭解剖结构,对上颌轴向切口的获取方法进行改进,以评估中腭缝合(MPS)的成熟阶段,并将改进后的方法与原方法进行比较。样本包括84个锥形束计算机断层扫描(CBCT), 40个男孩和44个女孩,年龄在11到15岁之间。这些文件被导出到Nemotec Dental Studio程序中,该程序用于获得上颌骨的轴向切割,以遵循腭的解剖结构,保持颊和鼻皮质骨集中和等距。两名先前校准的评估者根据缝合形态将MPS轴向图像分为5个成熟阶段(A、B、C、D和E)。采用Kappa检验检验被试内部和被试之间的一致性,并采用符号检验比较本研究结果与原方法的结果。统计学显著性水平设为0.05%。审查员内部和审查员之间的一致性kappa值分别为0.88和0.69。与原方法相比,改进后的方法能够更好地评价MPS的成熟状态,并能更详细地展示MPS的成熟阶段。该方法的弯曲缝合轴向切口对MPS成熟的分类与原始方法相似,其优点是即使上颚弯曲和/或厚,也可以评估上颚中线的成熟程度。关键词:缝合。上颌骨。腭扩张术。恢复上上颌中轴部后门牙矫正术,考虑腭解剖术,腭侧成熟后门牙矫正术(SPM)和腭侧比较后门牙矫正术(原形)。计算机层析成像(TCFC)对40个menmenas和44个menmenas进行了综合分析,对11个menmenas和15个menmenas进行了综合分析。在Nemotec牙科工作室中,我们找到了一种方法,即颌轴、上颌轴、腭解剖、骨皮质、前庭和鼻中央等距离。该方法采用预校正、分类成像、轴向数据SPM、5个成熟阶段(A、B、C、D、e)、形态学数据缝合线。O证人Kappa信息自由usado对位testar concordancia内部e inter-examinador e O证人做窦的信息自由utilizado对位comparar os resultados deste estudo com os metodo原始。美国国家统计局(ncia)的统计数据显示,这一比例为0.05%。2009年、1988年和2009年、2009年和2009年,分别为:对现有的成熟系统的可用性进行方法修改,对现有的成熟系统的可用性进行验证,对原始系统的可用性进行验证。一种经典的双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡/双轴曲线咖啡。Palavras-chave: Suturas。Maxila。帕拉蒂纳扩展技术。
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Modification of the Maxilla Axial Cut for Tomographic Evaluation of Midpalatal Suture Maturation
Abstract This study aimed at modifying the method for obtaining an axial cut of the maxilla, considering the palatine anatomy, for evaluation of the maturation stage of the midpalatal suture (MPS) and to compare this modified method with the original one.The sample consisted of 84 cone-beam computed tomography (CBCT) scans of 40 boys and 44 girls, aged 11 to 15 years. The files were exported to the Nemotec Dental Studio program, which was used to obtain axial cuts of the maxilla so as to follow the palatine anatomy, keeping the buccal and nasal cortical bones centralized and equidistant. Two previously calibrated evaluators classified the axial images of the MPS into 5 maturational stages (A, B, C, D, and E) according to suture morphology. Kappa test was used to test intra and inter-examiner agreement and the sign test was used to compare the results of this study with those from the original method. Statistical significance level was set at 0.05%. The kappa values for intra and inter-examiner agreement were 0.88 and 0.69, respectively. The modified method was able to evaluate the MPS maturation status and could demonstrate stages of maturation in more detail than the original method.  Classification of the MPS maturation with the curved suture axial cut of this method is similar to the original method, with the advantage of allowing evaluation of maturation in the midline of the palate, even when the palate was curved and/or thick. Keywords: Sutures. Maxilla. Palatal Expansion Technique. Resumo Este estudo visou modificar o metodo para a obtencao de um corte axial da maxila, considerando a anatomia do palato, para avaliacao da maturacao da sutura palatina (SPM) e para comparar este metodo modificado com o original.  A amostra foi composta de 84  tomografias computadorizadas (TCFC) de 40 meninos e 44 meninas, com idades entre 11 a 15 anos. Os arquivos foram exportados para o programa Nemotec Dental Studio, que foi usado para obter cortes axiais da maxila de modo a acompanhar a anatomia do palato, mantendo a cortical ossea  vestibular e nasal centralizada e equidistante. Dois avaliadores previamente calibrados, classificaram as imagens axiais da SPM em 5 fases de maturacao (A, B, C, D, e E) de acordo com a morfologia da sutura. O Teste Kappa foi usado para testar concordância intra e inter-examinador e o teste do sinal foi utilizado para comparar os resultados deste estudo com os do metodo original. O nivel de significância estatistica foi de 0,05%. Os valores de kappa para concordância intra e inter-examinador foram 0,88 e 0,69, respectivamente. O metodo modificado foi capaz de avaliar o estagio de maturacao da SPM e pode demonstrar estagios de maturacao em mais detalhe do que o metodo original. A classificacao da maturacao  da SPM com o corte axial curvo deste metodo e semelhante ao metodo original, com a vantagem de permitir a avaliacao da maturacao na linha media do palato, mesmo quando o palato for curvo e/ou espesso. Palavras-chave: Suturas. Maxila. Tecnica de Expansao Palatina.
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Journal of Health Science
Journal of Health Science 医学-毒理学
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