华西口腔医学杂志 ›› 2022, Vol. 40 ›› Issue (2): 183-188.doi: 10.7518/hxkq.2022.02.009

• 临床研究 • 上一篇    

Andrews六要素用于正畸病例数字化资料的临床回顾性研究

刘超峰1(), 许艳华2, 易春艳3, 刘彦1()   

  1. 1.昆明医科大学附属口腔医院第二门诊部,昆明 650000
    2.昆明医科大学附属口腔医院正畸科,昆明 650000
    3.昆明医科大学附属延安医院口腔科,昆明 650000
  • 收稿日期:2021-06-15 修回日期:2022-01-10 出版日期:2022-03-25 发布日期:2022-04-01
  • 通讯作者: 刘彦 E-mail:603218831@qq.com;18687162452@163.com
  • 作者简介:刘超峰,住院医师,硕士,E-mail:603218831@qq.com
  • 基金资助:
    国家自然科学基金(81960195);云南省创新团队(202005AE160033);昆明医科大学科技创新团队(CXT-D2020xx);云南省大学生创新训练项目(202110678019)

Clinical retrospective study on the digital data of orthodontic cases by Andrews six elements

Liu Chaofeng1(), Xu Yanhua2, Yi Chunyan3, Liu Yan1()   

  1. 1.Dept. of Second Outpatient, Kunming Medical University Affiliated Stomatological Hospital, Kunming 650000, China
    2.Dept. of Orthodontics, Kunming Medical University Affiliated Stomatological Hospital, Kunming 650000, China
    3.Dept. of Stomatology, Kunming Medical University Affiliated Yan’an Hospital, Kunming 650000, China
  • Received:2021-06-15 Revised:2022-01-10 Online:2022-03-25 Published:2022-04-01
  • Contact: Liu Yan E-mail:603218831@qq.com;18687162452@163.com
  • Supported by:
    The National Natural Science Foundation of China(81960195);Innovation Team of Yunnan Province(202005AE160033);Science and Technology Innovation Team of Kunming Medical University(CXTD2020xx);University Students Innovation Training Project of Yunnan Province(202110678019);Correspondence: Liu Yan, E-mail: 18687162452@163.com

摘要: 目的

使用Andrews六要素对正畸病例数字化资料进行测量分析,探讨不同性别、拔牙与否及不同矫治器对正畸治疗结果的影响。

方法

将2016—2020年经昆明医科大学口腔医院采用直丝弓矫治技术治疗完成的数字化病例资料作为总体,从中选取320例资料作为样本。将此320例资料分别按照性别、拔牙与否、矫治器类型(DamonQ自锁托槽与MBT托槽)进行分组,参照Andrews六要素测量标准进行测量计分。分别计算不同分组下各单项计分及总计分的均值、标准差,并进行统计学检验。

结果

男性与女性患者组间的Andrews六要素的总计分差异无统计学意义;在上牙弓宽度差异中,拔牙组与非拔牙组的计分差异有统计学意义;DamonQ自锁托槽组与MBT托槽组在上切牙前后位差异、下牙弓颊舌向差异及上牙弓宽度差异的计分均存在差异有统计学意义,而且DamonQ自锁托槽组在上切牙前后位差异、下牙弓颊舌向差异及上牙弓宽度差异的计分均值都小于MBT托槽组。

结论

数字化三维重建牙颌模型用于正畸结束病例临床回顾性研究,可重复测量,具有一定的临床应用价值。切牙前后位及上牙弓宽度对正畸结束病例的治疗效果影响最大,故在临床治疗中应加强对这两项指标的监控。性别不会对正畸总体疗效产生影响,但拔牙治疗可能会对正畸治疗结束病例的上牙弓宽度产生影响。DamonQ自锁托槽矫治器对牙弓颊舌向的调整有一定的优势。

关键词: Andrews六要素, 矫治病例, 数字化口腔模型, 回顾性研究

Abstract: Objective

Andrews six elements was used to explore the possible influences of gender, extraction/non-extraction, and different bracket types on the evaluation of orthodontic treatment outcome.

Methods

Digital data from 320 selected orthodontic cases in Kunming Medical University Affiliated Stomatological Hospital during the period of 2016—2020 were divided into groups in accordance with gender, tooth extraction, and type of orthodontic brackets (DamonQ self-ligating brackets and MBT brackets). Measurement was performed using Andrews six elements as standard. The mean and standard deviation of each individual score and total score for different groups were calculated and statistically tested.

Results

The differences in total scores between female and male cases exhibited no statistical significance (P>0.05). By contrast, the scores in skeletal width change of the maxilla between extraction cases and non-extraction cases presented statistical significance (P<0.05). Moreover, the scores in the anteroposterior change in the position of the maxillary incisors, the bucco-lingual border change of the mandibular arch, and the skeletal width change of the maxilla between the DamonQ self-ligating bracket and MBT bracket cases presented statistical significance (P<0.05). The cases with DamonQ self-ligating brackets had significantly lower scores than the cases with MBT brackets in the bucco-lingual border change of the mandibular arch, the skeletal width change of the maxilla, and the anteroposterior change in position of the maxillary incisors.

Conclusion

Digital 3D models can be used in the clinical retrospective studies of patients after orthodontic treatment. These models can be measured repeatedly and have clinical application value. For cases with incomplete orthodontic treatment, the control of the anteroposterior position of the incisor and the width of the arch of the upper tooth is crucial. Total treatment efficiency between female and male cases exhibited no difference, but the skeletal width change of the maxilla between extraction and non-extraction cases may exert an effect on cases with complete orthodontic treatment. The group that used DamonQ self-ligating brackets may achieve good adjustment of the bucco-lingual border change of the arch.

Key words: Andrews six elements, malocclusion cases, digital oral model, retrospective study

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