在成长中的患者中进行II类校正的清晰对齐器:弹性与下前进相比
The Angle orthodontist
|September 26, 2025
概括
清晰对齐器有效地纠正成长期患者的II类缺陷. 部推进 (MA) 提供了骨的好处,而弹性主要导致dentoalveolar变化.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙面部整形外科 牙面部整形外科
- 生物材料是一种生物材料.
背景情况:
- 在成长中的患者中,II类缺陷很常见.
- 有效的校正策略对于最佳结果至关重要.
- 透明对齐器提供了一个不那么明显的治疗选择.
研究的目的:
- 评估II类校正使用透明调整器对骨和牙的影响.
- 为了比较II类弹性与下前进 (MA) 与清晰对齐器.
主要方法:
- 研究了66名正在成长中的II类患者:45名接受了清晰对齐剂 (20弹性,25MA) 和21名对照患者的治疗.
- 在T1和T2进行了脑表测量和研究造测量.
- 在各组之间评估了骨和牙变化.
主要成果:
- 两个清晰对齐器组都被纠正为I类,与控制组不同.
- MA组显示了显著的骨变化 (SNA,ANB减少) 和dentoalveolar纠正.
- 弹性组显示出牙气囊纠正与显著的下切口倾斜;没有显著的骨变化.
结论:
- 带有弹性或MA的清晰对齐器对正在成长的患者的II类纠正有效.
- 马治疗为II类纠正提供了骨组成部分.
- 第二类纠正主要是dentoalveolar,MA提供了骨优势.
相关概念视频
Improving Translational Accuracy
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
Improving Translational Accuracy
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...


