上海口腔医学

上海口腔医学 ›› 2019, Vol. 28 ›› Issue (6): 666-669.doi: 10.19439/j.sjos.2019.06.023

• 论著 • 上一篇    下一篇

铸造支架联合NITI悬臂梁矫正舌倾下颌磨牙的临床效果评价

林颋旭1, 赵宁2, 钱文昊3, 马晓晴3   

  1. 1.福州市妇幼保健院 口腔科,福建 福州 350001;
    2.上海交通大学医学院附属第九人民医院·口腔医学院 口腔正畸科,上海 200011;
    3.上海市徐汇区牙病防治所,上海 200032
  • 收稿日期:2019-07-19 出版日期:2019-12-25 发布日期:2020-01-14
  • 通讯作者: 马晓晴,E-mail：mxq780927@163.com
  • 作者简介:林颋旭（1974-）,男,学士,副主任医师,E-mail：13905099880@139.com
  • 基金资助:
    上海市医学重点专科项目（ZK2019B12）; 徐汇区医学尖峰学科（SHXH201706）

Combination of NITI cantilever arm and casting frame in correcting lingually inclined mandibular molar

LIN Ting-xu1, ZHAO Ning2, QIAN Wen-hao3, MA Xiao-qing3   

  1. 1.Department of Stomatology, Fuzhou Maternity and Child Health Care Hospital. Fuzhou 350001, Fujian Province;
    2.Department of Orthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine. Shanghai 200011;
    3.Shanghai Xuhui District Dental Center. Shanghai 200032, China
  • Received:2019-07-19 Online:2019-12-25 Published:2020-01-14

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摘要： 目的 评价NITI悬臂梁在矫正舌倾下颌磨牙中的临床效果。方法 选择16例单侧下颌第二磨牙舌倾的病例为研究对象,带垫铸造支架连接双侧下颌后牙,提供颌内支抗、解除咬合锁结,0.018英寸×0.025英寸或0.019英寸×0.025英寸NITI悬臂梁提供颊向旋转力矩和压低力。采用Graphpad Prism 6.0 软件对治疗前、后所测数据进行配对 t 检验。结果 所有患牙均获得直立,牙轴变化24°±1.2°（P<0.01）,近中舌尖到正中矢状面垂直距离变化（3±0.8） mm（P<0.05）,牙周状况良好,咬合关系稳定。结论 铸造支架联合NITI 悬臂梁可提供有效力学机制,矫正舌倾下颌磨牙。

关键词: 舌倾, 下颌磨牙, NITI悬臂梁, 铸造支架

Abstract: PURPOSE: To study the effect of NITI cantilever arm in correcting lingually inclined mandibular molar. METHODS: Sixteen patients whose single mandibular second molar was lingually inclined were chosen. The intra-mandibular anchorage was achieved by means of cast frame which connected the bilateral mandibular posterior teeth. The splint disoccluded the lingually inclined second molar with the antagonist. The cantilever arm of 0.018 inch×0.025 inch or 0.019 inch×0.025 inch NITI wire was used to provide buccal rotation moment and intrusion force. Graphpad Prism 6.0 software was applied for data analysis. RESULTS: All the lingually inclined second molars were uprighted, the axial change relative to the sagittal plane was 24°±1.2°(P<0.01).The change of the distance from the mesial lingual cusp of the lingually inclined second molar to the sagittal plane was 3 mm±0.8 mm (P<0.05). The anterior overbite was almost unchanged and the periodontal condition was healthy. CONCLUSIONS: Combination of casting frame with NITI cantilever arm can provide effective mechanics to correct lingually inclined mandibular molars.

Key words: Lingually inclined, Mandibular molar, NITI cantilever arm, Casting frame

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