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近年来,推论式多变方法有所发展,并应用于分类学,这些方法较容易的使分类图式化,并可推论亚类,便于作进一步的研究。本文的目的是为了研究:在Ⅱ类错(牙合)中是否可以鉴定出不同的骨骼面型,有多少型,其骨骼特征如何? 资料作者多年来积累并数字化,以及贮存了大量治疗过的和未治疗的Ⅱ类错(牙合)于计算机中。本研究所用资料为697例儿童的侧位头影像。所有头影像均描绘并数字化和贮存于计算机中。具体方法作者1974年已报导。
In recent years, corollary and changeable approaches have evolved and have been applied to taxonomy. These methods make it easier to classify categories and deduce sub-categories for further research. The purpose of this paper is to investigate whether different skeletal types can be identified in Class II malocclusion, how many, and how are their skeletal characteristics? Data authors have accumulated and digitized over the years and have stockpiled a large number of treated And untreated class II malocclusion in the computer. The data used in this study were the lateral head images of 697 children. All head images are portrayed and digitized and stored on a computer. The specific method has been reported by the author in 1974.