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以西安市１１２名正常青少年为研究对象，进行软组织Ｘ线头影测量研究，得出常用软组织Ｘ线头影测量项目的正常值，并重点探讨了颌面部硬、软组织之间的相互关系。认为硬组织形态结构对软组织形态有一定程度的影响，但同时软组织又通过其覆盖厚度的变化对硬组织结构进行补偿，以达到面形协调的目的。
A total of 112 normal adolescents in Xi'an city were included in this study. The soft tissue X-ray cephalometric study was conducted. The normal soft tissue X-ray cephalometric measurements were obtained and the relationship between the soft tissue and the maxillofacial region was discussed. It is considered that the morphology and structure of hard tissue have a certain degree of influence on soft tissue morphology, but at the same time, soft tissue compensates the hard tissue structure through the change of its cover thickness to achieve the coordination of the face shape.