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通过对５４例１３～１６岁的正常牙合模型进行测量分析，建立了长春市恒牙牙合初期正常牙合的有关牙列指数的正常值。为探讨Ｐｏｎｔ指数和Ｂｏｔｏｎ比率值在临床应用的可靠性，作者对牙弓宽度长度做了相关分析，同时进行了上下颌牙量间的相关性分析。结果表明：Ｂｏｔｏｎ指数有较大的临床应用价值。
Through the measurement and analysis of 54 cases of normal occlusion model aged from 13 to 16, the normal dentition index of normal occlusion in Changchun permanent dentition was established. In order to investigate the reliability of Pont index and Boton ratio in clinical application, the author made a correlation analysis of the dental arch width and the correlation analysis between the maxillary and mandibular teeth. The results show that: Boton index has greater clinical value.