在粘接固定前牙咬合平面后的 6 个月内,是否能重新建立咬合接触?随机对照试验。

IF 1.4 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Evelyn Dunbar, Elinor Chalmers, Gautham Sivamurthy, Gavin Revie, Grant T McIntyre, Peter A Mossey
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引用次数: 0

摘要

目的确定在安装固定前牙咬合平面后6个月内,门牙关系为II类2分化的患者能否重新建立咬合接触,并评估咬合和垂直骨骼的变化以及口内扫描仪和咬合平面的接受程度:单中心双臂平行组随机对照试验,干预组和对照组的分配比例为1:1:地点:英国邓迪牙科医院和研究学院:共 38 名 9-16 岁的参与者(11 名男性,27 名女性),切牙关系为 II 类 2 分段,咬合过度(切牙重叠超过三分之一):采用整群随机法将参与者随机分为干预组(19 人)和对照组(19 人)。干预组采用固定的前咬合平面,并通过口内扫描、侧位头影和照片监测咬合情况和面部垂直尺寸。对照组不接受任何治疗,通过扫描和照片监测咬合和面部垂直尺寸。参与者和家长/监护人填写了调查问卷。计划进行意向治疗分析:结果:干预组的所有参与者的咬合过度都有所减轻(初始咬合过度的平均值为5.07毫米,95%的置信区间为0.5毫米):5.07毫米,95%置信区间[CI] = 4.15-6.00;6个月后的平均咬合过度为2.45毫米,95%置信区间[CI] = 4.15-6.00:2.45 毫米,95% 置信区间 = 1.93-2.96)。门牙内陷的平均值为 0.29 毫米(95% CI = 0.17-0.42),第一磨牙萌出的平均值为 0.23 毫米(95% CI = 0.09-0.37)。门牙倾斜度和垂直骨骼变化均无明显变化。参与者及其父母/监护人的反馈普遍良好:结论:固定前牙咬合平面可有效减少青少年因门牙内陷和磨牙萌出而导致的第二类第二排门牙咬合关系的过度咬合,而门牙倾斜度和垂直骨骼变化均无变化。口内扫描和固定前咬合平面对于青少年来说是可以接受的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Is occlusal contact re-established within 6 months after bonding of a fixed anterior bite plane in adolescents with a Class II division 2 incisor relationship? A randomised controlled trial.

Objective: To determine if re-establishment of occlusal contact was achieved within 6 months after insertion of a fixed anterior bite plane in individuals with Class II division 2 incisor relationship, and to evaluate the occlusal and vertical skeletal changes and acceptance of the intra-oral scanner and bite plane.

Design: Single-centre two-arm parallel group randomised controlled trial with 1:1 allocation to intervention and control groups.

Setting: Dundee Dental Hospital and Research School, UK.

Participants: A total of 38 participants aged 9-16 years (11 males, 27 females) with Class II division 2 incisor relationship and increased overbite (greater than one-third incisor overlap).

Methods: Participants were randomised to intervention (n = 19) and control (n = 19) groups using block randomisation. The intervention group had a fixed anterior bite plane, and the occlusion and vertical facial dimensions were monitored with intra-oral scans, lateral cephalograms and photographs. The control group received no treatment and occlusal and vertical facial dimensions were monitored with scans and photographs. Questionnaires were completed by participants and parents/carers. An intention-to-treat analysis was planned.

Results: The overbite reduced in all participants in the intervention group (mean initial overbite: 5.07 mm, 95% confidence interval [CI] = 4.15-6.00; mean overbite after 6 months: 2.45 mm, 95% CI = 1.93-2.96). There was a mean incisor intrusion of 0.29 mm (95% CI = 0.17-0.42) and mean eruption of the first molars of 0.23 mm (95% CI = 0.09-0.37). There was no significant change in incisor inclination or vertical skeletal change. Feedback from participants and their parents/carers were generally positive.

Conclusion: Fixed anterior bite planes effectively reduce an increased overbite in adolescents with a Class II division 2 incisor relationship, due to a combination of incisor intrusion and molar eruption with no change in incisor inclination or vertical skeletal change. Intra-oral scanning and fixed anterior bite planes are acceptable in adolescents.

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来源期刊
Journal of Orthodontics
Journal of Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
2.60
自引率
15.40%
发文量
55
期刊介绍: The Journal of Orthodontics has an international circulation, publishing papers from throughout the world. The official journal of the British Orthodontic Society, it aims to publish high quality, evidence-based, clinically orientated or clinically relevant original research papers that will underpin evidence based orthodontic care. It particularly welcomes reports on prospective research into different treatment methods and techniques but also systematic reviews, meta-analyses and studies which will stimulate interest in new developments. Regular features include original papers on clinically relevant topics, clinical case reports, reviews of the orthodontic literature, editorials, book reviews, correspondence and other features of interest to the orthodontic community. The Journal is published in full colour throughout.
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