微种植体支抗远中移动上、下牙列矫治成人双牙弓前突15例临床分析

上海口腔医学 ›› 2015, Vol. 24 ›› Issue (1): 76-82.

微种植体支抗远中移动上、下牙列矫治成人双牙弓前突15例临床分析

陈城¹,张晓蓉²

1.昆明市第一人民医院口腔科,云南昆明 650011;
2.昆明医科大学附属口腔医院正畸科,云南昆明 650021

收稿日期:2014-02-26 出版日期:2015-02-20 发布日期:2015-07-24
通讯作者: 张晓蓉,E-mail:xiaorongzhang36@hotmail.com
作者简介:陈城（1981-）,女,硕士,主治医师,E-mail:37099181@qq.com
基金资助:
国家自然科学基金（81060089）

Treatment of adult bimaxillary arch protrusion with micro-implant anchorage

CHEN Cheng¹,ZHANG Xiao-rong²

1.Department of Stomatology, the First Hospital of Kunming. Kunming 650011;
2.Department of Orthodontics, the Affiliated Stomatological Hospital of Kunming Medical University. Kunming 650021, Yunnan Province, China

Received:2014-02-26 Online:2015-02-20 Published:2015-07-24
Supported by:
National Natural Science Foundation of China （81060089）

摘要/Abstract

摘要： 目的通过对患者治疗前、后X线头影测量分析,探讨利用微钛钉种植体支抗牵引上、下牙列,整体远中移动矫治成人轻、中度双牙弓前突的新途径。方法15例双牙弓轻、中度前突的成年患者,拔除第三恒磨牙,上颌种植钉植入颧牙槽嵴,下颌种植钉植入内、外斜线颊棚区,利用镍钛螺旋弹簧牵引上、下牙列,整体向远中移动。对所有病例矫治前、后的头颅定位侧位片、全口曲面体层片进行测量,采用SPSS13.0软件包对所得数据进行统计学分析。结果①60颗微钛钉种植体均保持稳固。②SNA、SNB等骨骼方面的测量值矫治前、后无显著改变（P>0.05）;U1/NA、U1-NA、L1/NB 、L1-NB、U1/L1的变化差异具有显著性（P<0.05）,表明上、下前牙突度和倾斜度明显减小。③鼻唇角（Cm-Sn-UL）、颏唇沟角（LL-B’-Pos）治疗后显著增大（P<0.01）,上、下唇相对于审美平面的突度减小,鼻、唇、颏的协调关系明显改善,面部侧貌改善。④上、下颌磨牙、切牙均不同程度远中移动。结论微钛钉种植体能提供稳定的支抗,牵引上、下牙列整体远中移动,矫治成人轻、中度双牙弓前突,硬组织和软组织均发生明显变化。

关键词: 微种植体支抗, 双牙弓前突, 整体远中移动

Abstract: PURPOSE: In this study, micro-implants were used in 15 adult patients with mild and moderate bimaxillary arch protrusion or crowding. Cephalometric analysis was used to analyze hard and soft-tissues change before and after treatment, with the aim to investigate the effects of treatment on adult bimaxillary arch protrusion with micro-implant anchorage. METHODS: Fifteen adult patients with mild and moderate bimaxillary arch protrusion were selected in this study. Micro-implants were inserted into the zygomaticoalveolar ridge of maxilla and the external oblique line of mandible. A NiTi coil spring was attached to the micro-implant to drag the whole upper and lower dentition for distal movement. Cephalometrics were taken before and after treatment, and the changes of soft and hard-tissue profile were studied. SPSS13.0 software package was used to analyze the data. RESULTS: ①Sixty micro-implants remained stable.②SNA, SNB had no significant changes (P>0.05), and the relationship between the maxilla and the mandible did not change significantly. U1/NA, U1-NA, L1/NB, L1-NB and U1/L1 changes in hard tissue had significant difference in cephalometric measurement (P<0.05). The upper and lower anterior teeth were more retrusive, and the tipping of incisor decreased significantly.③Cephalometric analysis showed that lateral appearance improved and soft tissue cephalometric-related measurements such as Cm-Sn-UL,LL-B’-Pos increased significantly (P<0.01). ④Molars and incisors acquired distal movement. CONCLUSIONS: Micro-implant can provide not only excellent skeletal anchorage but also a novel way to distalize the whole dentition efficiently.

Key words: Micro-implant anchorage, Bimaxillary arch protrusion, Whole dentition distalization movement

中图分类号:

R783.5

陈城,张晓蓉. 微种植体支抗远中移动上、下牙列矫治成人双牙弓前突15例临床分析[J]. 上海口腔医学, 2015, 24(1): 76-82.

CHEN Cheng,ZHANG Xiao-rong. Treatment of adult bimaxillary arch protrusion with micro-implant anchorage[J]. Shanghai Journal of Stomatology, 2015, 24(1): 76-82.

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