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作者应用头侧位X线片测量法,对90例有牙颌平面与50例无颌堤平面进行了测量和统计分析。结果:有牙颌平面与鼻翼下缘至耳屏中点的连线近似平行,正常有牙颌平面角与PONANS角呈负相关关系,经回归分析推导出回归方程Y=54.146-0.554X。经用该方程和临床修复效果来验征,50例全口义齿平面定位是适宜的。
The authors used head X-ray measurements to measure and statistically analyze 90 patients with dento-maxillofacial plane and 50 patients without maxillary embankment. Results: There was a parallel connection between the plane of mandible and the lower edge of the alar to the midpoint of tragus. There was a negative correlation between the plane angle of the mandible and the PONANS angle. The regression equation was derived from regression equation Y = 54.146-0.554X . Using this equation and clinical repair effect to check, 50 cases of complete denture plane positioning is appropriate.