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以鼠龄为２８～３５天幼年大白鼠建立人工腭裂模型后，经改良的Ｌａｎｇｅｎｂｅｃｋ氏法行腭裂成形术，于鼠龄为７５～８０天成年期处死动物，取上颌牙列模型印模，γ－半水石膏灌模，测量上颌牙列，结果显示手术修复组牙弓宽度明显缩小，牙弓形态角、牙倾斜度均减小，与正常组和未手术修复组相比有高度显著性差异（Ｐ＜０．０１）、本实验结果提示幼年时行腭裂成形术明显影响上颌牙列的正常发育。
After establishment of the artificial cleft palate model in young rats aged 28-35 days, the animals were sacrificed at the age of 75-80 days after the modified Langenbeck palatal palatal surgery. The maxillary dentition model impression, γ - hemihydrate gypsum filling model, measurement of the maxillary dentition, the results show that surgical arch was significantly reduced dental arch width, dental arch angle, tooth inclination were reduced, with the normal group and no surgical repair group compared with highly significant difference (P <0.01). The results of this study suggest that palatal surgery during early childhood can significantly affect the normal development of maxillary dentition.