作者根据对中立区位置与齿槽嵴顶关系的研究结果和临床实践，对传统的总义齿和中立区总义齿进行了分析比较，重点讨论了牙齿位置的排列，牙齿外形和基托外形的处理方法。文中综合运用生物力学和肌力平衡的原则，对无牙颌口腔进行了具体分析，并根据各牙区的解剖与功能特点，提出了相应的对策。 Based on the study of the relationship between the neutral zone and the alveolar crest, the author analyzed and compared the traditional total dentures and neutral dentures, and focused on the arrangement of teeth, the contour of teeth and the shape of base method. In this paper, the principles of biomechanics and balance of muscle strength are comprehensively used to analyze the edentulous oral cavity. Corresponding countermeasures are put forward according to the anatomical and functional characteristics of each tooth area.