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目的:探讨息止颌位和正中颌位时面下1/3距离的比例关系,为全口义齿垂直距离恢复提供理论依据。方法:应用游标卡尺测量受试者鼻底至上中切牙切端距离,以及息止颌位和正中颌位时上中切牙切端至软组织颏底距离。结果:鼻底至上中切牙切端距离与息止颌位上中切牙切端至软组织颏底距离的比值为0.55,与正中颌位上中切牙切端至软组织颏底距离的比值为0.57,与黄金分割律0.618比较差异均有统计学意义(P<0.01);在性别中差异无统计学意义(P>0.05)。男性的2组数据中,每组数据2变量间相关系数有统计学意义(P<0.05);而女性2组数据中2变量间差异无统计学意义。结论:面下1/3距离中未发现黄金分割律的存在。
OBJECTIVE: To investigate the relationship between the ratio of the lower third of the maxillary and the maxillary median, providing a theoretical basis for the restoration of the vertical distance of complete dentures. Methods: vernier caliper was used to measure the distance from the end of the nose to the maxillary incisors, and the distance from the incision of the upper incisors to the chin of soft tissue at the maxillary and maxillary positions. Results: The ratio of the incisor nose distance to the maxillary incisor incisor and the distance between the incisors of the maxillary incisors and the soft tissue chin base was 0.55, and the ratio of the median incisors to the soft tissue chin base distance was 0.57. There was significant difference in segmentation law 0.618 (P <0.01). There was no significant difference in gender (P> 0.05). There was no significant difference between the two variables in the two groups of males (P <0.05). Conclusion: There is no golden section law found in the lower 1/3 of the face.