Incremental versus maximum bite advancement during Twin-block therapy: A randomized controlled clinical trial
Incremental versus maximum bite advancement during Twin-block therapy: A randomized controlled clinical trial
复制标题
DOI：
10.1016/j.ajodo.2004.03.024
复制
发表时间：
2004-11-01
影响因子：
3
通讯作者：
O'Brien, K
中科院分区：
文献类型：
--
作者：
Banks, P;Wright, J;O'Brien, K
本研究的目的是评估在恒牙期使用Twin-block矫治器治疗安氏Ⅱ类1分类错牙合时，增量和最大咬合前移的有效性。在英国的3家地区综合医院进行，有4名操作员。203例10-14岁的患者被随机分组。对照组患者的初始咬合是边对边，以使用标准Twin-block进行矫治器构造。实验患者有2毫米的初始咬合推进和随后的2毫米的进步，在6个星期的时间间隔与双块装置结合推进螺钉。在Twin-block治疗开始和结束时收集数据。使用Twin-block的增量推进在治疗过程和结局方面没有任何优势。然而，患者依从性受操作者和患者年龄的影响。治疗持续时间受操作者和初始覆盖的影响。渐进式咬合前移与最大前移相比没有优势。
The aim of this study was to evaluate the effectiveness of incremental and maximum bite advancement during treatment of Class II Division 1 malocclusion with the Twin-block appliance in the permanent dentition. It was performed at 3 district general hospitals in the United Kingdom with 4 operators. Two hundred three patients, 10-14 years old, were randomized. Control patients had the initial bite taken edge-to-edge for appliance construction with a standard Twin-block. Experimental patients had 2 mm initial bite advancement and subsequent 2 mm advancements at 6 weekly intervals with a Twin-block appliance incorporating advancement screws. Data were collected at the start and the finish of Twin-block treatment. The use of incremental advancement of the Twin-block did not confer any advantages in terms of process and outcome of the treatment. However, patient compliance was influenced by operator and patient age. The duration of treatment was influenced by operator and initial overjet. Incremental bite advancement produced no advantages over maximum advancement.