目的研究正常ND03F儿童头位与颅面结构的相关性。方法选取33例正常ND03F儿童拍摄自然头位时的头颅侧位片，对其颅面结构、颈椎姿势及头位进行分析。结果正常ND03F儿童的SN-VEL、SN-OPT、SN-CVT与SNA、SNB、SND、SNPo存在显著负相关，与SN-GoGn、SN-PP、SN-OP、NSGn等变量存在显著正相关。结论正常ND03F儿童头位变量与一些颅面结构变量间存在显著的相关关系，尤其是与代表面部生长趋势和下颌骨生长方向的若干变量显著相关。

Objective To study the correlation between head posture and craniofacial structure of children with normal occlusion. Methods Lateral cephalometric radiographs were taken in each of 33 children with normal occlusion under natural head posture. The craniofacial structure, cervical inclination and head posture of the samples were analyzed based on the cephalograms. Results Significant negative correlation was found between SN-VEL,SN-OPT,SN-CVT and SNA,SNB,SND,SNPo, and significant positive correlation was found between SN-VEL,SN-OPT,SN-CVT and SN-GoGn,SN-PP,SN-OP,NSGn in children with normal occlusion. Conclusions Head posture variables are correlated with craniofacial structure variables in children with normal occlusion. Significant correlation can be seen between head posture and the variables which indicate the tendency of facial development and the direction of mandibular growth.