Stability of unilateral posterior crossbite treatment with the Function Generating Bite appliance : Association with reduction of mandibular clockwise rotation and increased maxillary transversal width measurements.

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie Pub Date : 2024-10-25 DOI:10.1007/s00056-024-00556-9
Maria Grazia Piancino, Alessandro Tortarolo, Laura Di Benedetto, Luigi Moscufo, Ludovica Nucci, Michela Bersia
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Abstract

Purpose: This observational study aimed to evaluate the stability of unilateral posterior crossbite (UPXB) correction with the functional appliance function generating bite (FGB appliance) during follow-up and its effects on craniofacial growth.

Materials and method: A total of 102 age- and gender-matched patients were included: 51 with UPXB (male [M] = 19; female [F] = 32; mean age ± standard deviation [SD] = 7.6 ± 1.4 [years.months]) and 51 controls (C; M = 19; F = 32; mean age ± SD = 7.9 ± 1.3). UPXB was corrected with the FGB appliance. Study casts were collected before treatment (T0), after correction (T1), after a follow-up of 3.7 ± 1.6 [years.months] (T2) and different transversal measurements were performed with calipers: intermolar (IMD), intermolar gingival (IMGD), intercanine (ICD), and intercanine gingival distances (ICGD). In treated patients, in addition, lateral cephalometric tracings were analyzed at T0 and T2.

Results: At T0, all maxillary measurements were significantly smaller in the UPXB group compared to the controls (p < 0.001). Between T0 and T1, all maxillary variables increased significantly in the UPXB group (p < 0.001; IMD +4.3 ± 2.1 mm; ICD +3.1 ± 2 mm). Between T1 and T2, maxillary IMD increased further (p < 0.05; +2.2 ± 2 mm). The mean T0-T2 increases were 6.6 ± 2.6 mm (IMD) and 4.3 ± 2.6 mm (ICD). At T0, the cephalometric analysis showed significantly stronger mandibular clockwise rotation (p < 0.01) in the UPXB group compared to the control group. Between T0 and T2, the UPXB group showed a significant reduction of mandibular (p < 0.001; SpP-CoOr T0 = -3.47°± 4.38, T2 = -1.14°± 4.01) and occlusal plane (p < 0.01; SpP-Oc T0 = 11.37°± 3.91, T2 = 9.86°± 3.83) clockwise rotation, and of intermaxillary divergence (p < 0.01; SpP-GoGn T0 = 27.8°± 5.39, T2 = 26.65°± 5.49).

Conclusions: Treatment of UPXB with the FGB appliance effectively increased maxillary transversal width measurements, especially in the posterior region, even after follow-up, indicating stable results. Concurrently, mandibular clockwise rotation was reduced, indicating control of the vertical dimension.

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使用功能性咬合矫治器治疗单侧后交叉咬合的稳定性:与下颌顺时针旋转减少和上颌横向宽度测量增加有关。
目的:本观察性研究旨在评估单侧后交叉咬合(UPXB)矫治器功能生成咬合(FGB矫治器)在随访期间的稳定性及其对颅面生长的影响:共纳入 102 名年龄和性别匹配的患者:51例UPXB患者(男[M]=19;女[F]=32;平均年龄±标准差[SD]=7.6±1.4[岁.月])和51例对照组(C;男=19;女=32;平均年龄±标准差=7.9±1.3)。UPXB 采用 FGB 矫正器进行矫正。分别在治疗前(T0)、矫正后(T1)和随访 3.7 ± 1.6 [年.月] 后(T2)收集研究模型,并使用卡尺进行不同的横向测量:磨牙间距 (IMD)、磨牙龈间距 (IMGD)、龈间距 (ICD) 和龈间距 (ICGD)。此外,还分析了接受治疗的患者在 T0 和 T2 时的头颅侧位描记图:结果:与对照组相比,UPXB 组患者在 T0 时的所有上颌骨测量值都明显较小(p 结论:UPXB 组患者在 T2 时的所有上颌骨测量值都明显较小(p):使用FGB矫治器治疗UPXB能有效增加上颌横向宽度测量值,尤其是在后部,即使在随访后也是如此,这表明治疗效果稳定。同时,下颌顺时针旋转也有所减少,这表明垂直方向的尺寸得到了控制。
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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.
期刊最新文献
The effects of professional expertise on perceptions of treatment need in patients with class II division 1 malocclusion: a comparison between orthodontists, general dentists, and lay people in Germany. Mitteilungen der DGKFO. Effect of orthodontic extraction of mandibular premolars on third molar angulation after treatment with fixed appliances : A cross-sectional study. Long-term effects of orthodontic interceptive expansion treatment : A retrospective study. Scanning electron microscopy evaluation of enamel surfaces using different air-polishing powders in the orthodontic setting: an in vitro study.
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