治疗效果和治疗时间在青少年拥挤和移动的牙治疗固定器件系统没有提取:一个多中心随机对照试验
Linda Bokander Matilainen1, Kristina Johansson1,2, Michal Wiaderny3
1Faculty of Odontology, Malmö University, Malmö, Sweden.
Orthodontics & craniofacial research
|July 23, 2025
概括
这项研究发现,在青少年牙对齐的被动自结合支架 (PSLB) 和常规支架 (CB) 之间,治疗结果或治疗时间没有显著差异. 这两种系统都在纠正拥挤和位移的牙方面取得了很好的结果.
科学领域:
- ортодонтика和牙科技术 牙科和牙科技术
- 在牙科中使用生物材料.
背景情况:
- 对于牙挤满的青少年来说,正牙治疗往往涉及到固定设备.
- 被动自结括号 (PSLB) 和常规括号 (CB) 是非提取处理中常用的系统.
- 评估PSLB与CB的比较疗效对于优化治疗方案至关重要.
研究的目的:
- 为了比较PSLB和CB之间的治疗效果和持续时间,在牙拥挤和移位的青少年中.
- 为了评估闭塞结果,减少不规则性,以及牙弧度尺寸.
- 为了分析切口的倾斜度和横向宽度在 ортодонтической治疗期间和之后的变化.
主要方法:
- 随机对照试验涉及青少年 (12-17岁) 拥挤/移位牙.
- 两臂平行组设计,比较PSLB (Damon Q) 与CB (Victory) 的设计.
- 数据收集包括在基线,对齐后和治疗后的研究模型和脑图;结果使用wPAR,LII,横向宽度,切口倾斜度和治疗时间进行评估.
主要成果:
- 在加权同行评价指数 (wPAR) 或Little's不规则指数 (LII) 降低方面没有发现显著的跨组差异.
- 平均治疗时间相似:CB的21.74个月和PSLB的24.35个月 (不显著).
- 虽然PSLB在对齐过程中显示出更大的横向扩张,而CB显示出更大的切口倾斜,但这些差异在治疗后并不显著.
结论:
- 无论是PSLB还是CB系统,在青少年中都产生了优异的闭合治疗结果,治疗时间没有显著差异.
- 虽然最初的膨胀模式有所不同,但最终的处理结果在两个支架系统之间是可比的.
- 在PSLB和CB之间做出选择可能取决于具体的临床考虑,而不是整体治疗效率或结果差异.
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