正常(牙合)是错(牙合)诊断的参考标准,正畸的目标是使错(牙合)恢复到正常(牙合)。因此,全面地认识正常(牙合)是研究错(牙合)畸形的重要基础。自从60年代,国内学者运用X线头影测量技术对正常(牙合)的硬组织进行了一些卓有成效的研究。相对而言,对有关软组织研究比较少。为此,本研究对一些过去保存的正常(牙合)X线头颅侧位片进行了软硬组织的测量分析,以探讨软组织对正常(牙合)的影响。 Normal occlusion is the reference standard for the diagnosis of occlusion, and the goal of orthodontics is to return the occlusion to normal occlusion. Therefore, a comprehensive understanding of normal occlusion is an important basis for the study of malocclusion. Since the 1960s, domestic scholars have used X-cephalometry to study some of the normal (occlusal) hard tissues. Relatively speaking, the research on soft tissue is relatively small. To this end, the study of some of the past preservation of normal (occlusal) X-ray cephalometric films were measured by hard and soft tissue to explore the soft tissue on the normal occlusion.