唇部形态影响因素及其与正畸治疗相关性的研究进展

doi:10.13591/j.cnki.kqyx.2024.08.014

摘要/Abstract

摘要：

唇部是面部美观的决定因素之一,正畸医生和患者都非常关注正畸治疗过程中唇部形态和位置的三维变化,唇部形态的改善度是影响正畸患者术后满意度的重要原因,因此明确唇部形态的影响因素及其与正畸治疗的相关性能够帮助正畸医生更准确地预测术后唇部形态的变化,从而优化正畸治疗方案的个性化设计。本文将对唇部形态的评价方法和影响因素作一综述,旨在为正畸临床实践提供相应参考。

关键词: 唇部形态, 三维成像技术, 颌骨位置形态, 牙齿移动

Abstract:

The lip plays a crucial role in facial aesthetics, making them a focal point of interest for orthodontists and patients throughout orthodontic treatment due to their three-dimensional changes in morphology and position. The degree of improvement in lip morphology significantly impacts post-treatment satisfaction among orthodontic patients. Therefore, understanding the influencing factors of lip morphology and its correlation with orthodontic interventions enables orthodontists to predict post-treatment changes in lip morphology more accurately, facilitating the customization of orthodontic treatment plans. In this paper, we reviewed the progress of methods for evaluating lip morphology and its influencing factors in order to provide reference for clinical practice.

Key words: lip morphology, three-dimensional imaging technology, craniofacial morphology, tooth movement

中图分类号:

R783.5

夏雪妍, 吴梦婕. 唇部形态影响因素及其与正畸治疗相关性的研究进展[J]. 口腔医学, 2024, 44(8): 635-640.

XIA Xueyan, WU Mengjie. Research progress of factors influencing lip morphology and their relevance to orthodontic treatment[J]. Stomatology, 2024, 44(8): 635-640.

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参考文献 39

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标志点及参考线	定义
蝶鞍点(S)	蝶鞍影像的中心
软组织额点(G)	软组织额部的最前点
软组织鼻根点(Ns)	软组织侧面上相应的鼻根点
软组织鼻顶点(Prn)	软组织鼻部最突点
软组织鼻小柱点(Cm)	鼻小柱上端的最前点
软组织鼻下点(Sn)	鼻小柱与上唇的连接点
上唇凹点(A')	上唇最凹点
上唇突点(UL)	上唇最突点
口裂点(Stm)	上下唇接触点
下唇突点(LL)	下唇最突点
下唇凹点(B')	下唇最凹点
软组织颏前点(Pog)	软组织颏的最前点
软组织颏下点(Mes)	软组织颏的最下点
软组织颏顶点(Gn)	Pog与Mes的中点
颈点(C)	颏下与颈部连接点
前鼻棘点(ANS)	前鼻棘的尖
后鼻棘点(PNS)	硬腭后部骨棘的尖
腭平面(PP)	前鼻棘与后鼻棘的连线
上中切牙点(UI)	上中切牙切缘的最前点
下中切牙点(LI)	下中切牙切缘的最前点
上中切牙颈点(cUI)	上中切牙唇侧牙冠弧度的最上点
下中切牙颈点(cLI)	下中切牙唇侧牙冠弧度的最上点
审美平面(E线)	Prn与Pog的连线
水平参考线(X轴)	将前颅底平面(SN平面)以S为圆心顺时针旋转7°
垂直参考线(Y轴)	过S点做X轴的垂线

测量指标	定义
鼻唇角(a)	鼻下点与鼻小柱点连线和鼻下点与上唇突点连线的前交角,代表上唇与鼻底的位置关系
颏唇沟角(b)	下唇凹点与下唇突点连线和下唇凹点与软组织颏前点连线的前交角,代表下唇与颏部的位置关系
上下前牙间角度 (c即UI-LI)	上下中切牙长轴交角
上中切牙角度 (d即UI-PP)	上切牙长轴与腭平面交角
UL-E	上唇最突点到E线的水平距离
LL-E	下唇最突点到E线的水平距离
上唇厚度	上唇凸点与上切牙颈点到Y轴垂直距离之差
下唇厚度	下唇凸点与下切牙颈点到Y轴垂直距离之差

标志点及参考平面	定义
上唇红缘中点(Ls)	上唇唇红缘的中点
下唇红缘中点(Li)	下唇唇红缘的中点
左鼻下点(SbalL)	左侧人中嵴与鼻小柱转折点
右鼻下点(SbalR)	右侧人中嵴与鼻小柱转折点
左唇弓最上点(CphL)	左侧唇弓的最上点
右唇弓最上点(CphR)	右侧唇弓的最上点
左口角点(ChL)	左侧口角点
右口角点(ChR)	右侧口角点
Chm	ChR与ChL的中点
上唇基底平面	ChR-Ls-ChL平面
下唇基底平面	ChR-Li-ChL平面
口裂平面	ChR-Stm-ChL平面

测量指标	定义
左人中嵴长度	SbalL-CphL的距离
右人中嵴长度	SbalR-CphR的距离
两唇弓最上点间距离	CphR-CphL的距离
唇宽度	ChR-ChL的距离
唇高度	Ls-Li的距离
上唇红高度	Ls-Stm的距离
下唇红高度	Stm-Li的距离
上唇红周长	ChR-CphR-Ls-CphL-ChL的距离
下唇红周长	ChR-Li-ChL的距离
上唇突角(a)	ChR-Ls-ChL间角度
左上唇突角(b)	ChR-CphL-ChL间角度
右上唇突角(c)	ChR-CphR-ChL间角度
下唇突角(d)	ChR-Li-ChL间角度