透明矫治器与双块矫治器对牙齿骨骼的影响--功能性矫治器的短期研究。

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Elisabetta Cretella Lombardo, Roberta Lione, Lorenzo Franchi, Francesca Gaffuri, Cinzia Maspero, Paola Cozza, Chiara Pavoni
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引用次数: 0

摘要

目的:双阻抗(TB)是矫正二类错合畸形最广泛使用的功能矫治器之一。Align Technology(美国加利福尼亚州圣何塞)开发的隐适美®下颌前突矫正器(MA)复制了功能矫治器的作用机制。本研究的目的是比较TB与MA所产生的变化:将 56 名接受 TB(TB 组:n = 35)或 MA(MA 组:n = 21)治疗的 II 类患者的记录与 15 名未接受治疗的 II 类患者(UC2)的对照样本进行比较:结果:与对照组相比,TB 组和 MA 组的 ANB 角明显缩小(TB 组:-1.5°;MA 组:-1.5°;UC2 组:+0.2°)。在 Co-Gn 值方面,肺结核组和 MA 组与 UC2 组相比有显著差异,肺结核患者增加了 8.4 毫米,MA 患者增加了 8.3 毫米。Pg到真垂直线(TVL)距离的增加是三组之间唯一存在显著差异的测量值,与 MA 组和 UC2 组相比,肺结核组的软组织pogonion向前推进的幅度更大(肺结核组:+3 毫米;MA 组:+0.9 毫米;UC2 组:-1.6 毫米)。腭平面与下颌平面之间的夹角在 TB 组和 MA 组中的减小幅度更大。两种矫治器都能减少过咬合和垂直过咬合值:结论:使用 MA 和 TB矫治器治疗可显著拉长下颌骨,改善矢状关系、过咬合和垂直过咬合,并很好地控制垂直关系。TB受试者的软组织下巴有较大的前移。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Dentoskeletal effects of clear aligner vs twin block-a short-term study of functional appliances.

Dentoskeletal effects of clear aligner vs twin block-a short-term study of functional appliances.

Purpose: The twin block (TB) is one of the most widely used functional appliances for the correction of class II malocclusions. Align Technology (San Jose, CA, USA) developed the Invisalign® mandibular advancement (MA) that replicates the mechanism of action of a functional appliance. The aim of this study was to compare the changes produced by the TB versus those by MA.

Methods: The records of 56 class II patients treated with the TB (TB group: n = 35) or the MA (MA group: n = 21) were compared to a control sample of 15 untreated class II subjects (UC2).

Results: The TB and MA groups showed a significant reduction of the ANB angle, compared to the controls (TB group: -1.5°; MA group: -1.5°; UC2 group: +0.2°). For the Co-Gn values, the TB and MA groups showed significant differences when compared with the UC2 group with an increase of 8.4 mm in TB patients and of 8.3 mm in MA patients. The increase of the distance of Pg to the true vertical line (TVL) was the only measurement where significant differences between the three groups were found with a greater advancement of the soft tissue pogonion in the TB group compared with the MA group and the UC2 group (TB group: +3 mm; MA group: +0.9 mm; UC2 group: -1.6 mm). The angle between the palatal plane and mandibular plane revealed a more relevant reduction in the TB and MA groups. Both appliances were able to reduce overjet and vertical overbite values.

Conclusions: Treatment with the MA and TB appliances produced a significant elongation of the mandible with an improvement in sagittal relationship, overjet, and vertical overbite and with good control of the vertical relationship. TB subjects showed a greater advancement of the soft tissue chin.

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来源期刊
CiteScore
3.90
自引率
0.00%
发文量
64
审稿时长
>12 weeks
期刊介绍: The Journal of Orofacial Orthopedics provides orthodontists and dentists who are also actively interested in orthodontics, whether in university clinics or private practice, with highly authoritative and up-to-date information based on experimental and clinical research. The journal is one of the leading publications for the promulgation of the results of original work both in the areas of scientific and clinical orthodontics and related areas. All articles undergo peer review before publication. The German Society of Orthodontics (DGKFO) also publishes in the journal important communications, statements and announcements.
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