国际口腔医学杂志 ›› 2020, Vol. 47 ›› Issue (2): 182-188.doi: 10.7518/gjkq.2020050
Zhang Tingting,Hu Changhong,Peng Yan,Zhou Wenqiao,Zhang Huicong,Liu Die()
摘要:
目的 通过锥形束CT(CBCT)进行三维测量,分析不同年龄段有牙颌人群上唇软组织侧貌特征,为无牙颌患者的全口义齿修复提供面部美学的客观参考依据。方法 选择300例有牙颌人群的CBCT影像资料进行研究,按照患者年龄分为青年组(20~39岁)、中年组(40~59岁)、老年组(60岁及以上),对上唇长度、厚度等相关指标进行测量,对上唇皮肤段侧面轮廓进行形态学分析。结果 上唇长度、厚度测量指标结果显示,随着年龄增加,上唇长度逐渐变大,唇红暴露量及唇红厚度逐渐减少,差异有统计学意义(P<0.05)。青年组、中年组和老年组上唇下缘到上中切牙切点的距离分别为(1.962 2±1.107 1)、(0.835 3±1.206 6)、(0.014 1±1.225 6)mm,上唇红部厚度分别为(12.355 8±1.950 3)、(10.634 2±1.782 4)、(9.924 9±1.951 4)mm。归纳上唇侧面轮廓表现为4种形态:凹形、直形、波浪形、凸形,不同年龄段人群的侧面轮廓表现特点有明显差异,青年组凹形比例(68%)最大,中年组凹形和直形比例(80%)最大,而老年组波浪形与凸形比例(67%)最大。结论 为老年无牙颌患者进行全口义齿修复时,应充分考虑与其衰老相关的上唇侧貌特征,人工牙排列应注意上唇下缘到中切牙切缘的距离与患者年龄相符合,上唇丰满度的恢复也应考虑与同年龄有牙颌侧貌轮廓形态表现相符合。
中图分类号:
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