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首页> 外文学位 >Treatment effects of Forsus(TM) appliance on Class II malocclusion cases: A cephalometric evaluation.
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Treatment effects of Forsus(TM) appliance on Class II malocclusion cases: A cephalometric evaluation.

机译：Forsus™矫治器对II类错牙合患者的治疗效果：一项头颅测量评估。

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摘要

Class II malocclusion treatment has varied through out the years, some of the appliances used are extra oral such as the headgear, others are intra oral appliances and these could be fixed intra-arch as the pendulum and distal jet, fixed inter-arch such as the Herbst appliance and Japser jumper and removable inter-arch such as the bionator. When treating class II malocclusion using these appliances, one would expect different ranges of skeletal and dental effects depending on the patients' cooperation and acceptance, the patients' growth potential and the severity of the malocclusion.;In 2001, the Forsus(TM) appliance was introduced as a class II corrector. Three different generations were introduced since that time with the last two generations possessing a close resemblance in their design. A limited number of studies have been published analyzing the clinical and radiographic effects of these two generations. Several clinical effects have been associated with the use of Forsus(TM) appliance. This study used these existing clinical observations and claims as the basis of the list of hypotheses.;Skeletal and dental measurements were collected and analyzed from lateral cephalometric radiographic tracings at two different time points, one before orthodontic treatment and the other after orthodontic treatment has been completed with a mean Forsus(TM) treatment time of 6 months. The treatment group was matched with an untreated control group.;A Students't-test was used to assess the mean differences between the treatment and the control group at the 0.05 significance level. A Pearson correlation coefficient test was used to assess infra and inter examiner reliability.;The results showed significant mandibular incisor proclination, no significant maxillary incisor intrusion or distal movement, no significant mandibular length increase and some significant maxillary skeletal antero-posterior positive changes. Whether the skeletal changes observed in this study were true skeletal changes or just a result of dental changes can not be proven at this time.;In conclusion, when treating class II malocclusion cases using Forsus(TM) appliance one should consider the initial degree of mandibular incisor proclination, the amount of maxillary molar intrusion or distal movement needed, the amount of mandibular length change needed and the severity of the underlying skeletal malocclusion.
机译：多年来，II类错牙合治疗方法有所不同，使用的某些矫治器是额外的口腔器械（例如头饰），其他矫治器是口腔内器械，这些器械可以固定在弓内，如钟摆和远端射流，固定在弓间例如Herbst电器和Japser跳线以及可移动式拱架，例如仿生器。当使用这些矫治器治疗II类错牙合畸形时，根据患者的合作与接受程度，患者的生长潜力和错牙合畸形的严重程度，人们会期望骨骼和牙齿的作用范围不同；在2001年，Forsus（TM）矫正器被引入为II类校正器。从那时起，引入了三个不同的世代，后两个世代在设计上非常相似。有限的研究已经发表，分析了这两个世代的临床和放射学影响。与Forsus TM装置的使用相关联的几种临床效果。本研究使用这些现有的临床观察结果和主张作为假设列表的基础。;在两个不同的时间点（分别在正畸治疗之前和正畸治疗之后的另一个时间点）从侧面头颅放射线照相描记中收集并分析了骨骼和牙齿测量值完成的Forsus™平均治疗时间为6个月。治疗组与未治疗的对照组匹配。;采用学生检验，以0.05的显着性水平评估治疗组与对照组之间的平均差异。皮尔逊相关系数检验用于评估检查员和检查员之间的可靠性。;结果显示下颌切牙倾向性明显，上颌切牙侵入或远端运动均无明显变化，下颌骨长度无明显增加，并且上颌骨前后前后均有明显阳性变化。目前尚不能证明在这项研究中观察到的骨骼变化是真正的骨骼变化还是仅仅是牙齿变化的结果。总之，在使用Forsus™矫治器治疗II类错牙合畸形病例时，应考虑其初始程度。下颌切牙的倾斜，所需的上颌磨牙侵犯或远端运动的数量，所需的下颌长度变化的数量以及潜在的骨骼错合的严重程度。

著录项

  • 作者

    Dada, Doa M.;

  • 作者单位

    University of Illinois at Chicago.;

  • 授予单位 University of Illinois at Chicago.;
  • 学科 Health Sciences Dentistry.
  • 学位 M.S.
  • 年度 2010
  • 页码 58 p.
  • 总页数 58
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 遥感技术;
  • 关键词

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