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Twinblok在安氏Ⅱ类错he治疗中的应用 被引量:41

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摘要 目的 Twinblock矫正器在安氏Ⅱ类错he治疗中的应用特点。方法 21名10-12岁的以下颌后缩为主的安氏Ⅱ类错he患者应用Twinblock进行矫治。男9名,女12名。每位患者治疗前拍摄头颅侧位、曲面断层及手腕骨X线片。对Twinblock治疗前后头颅侧位X光片进行18个项目的测量,并对治疗前后测量结果进行配对t检验。结果 SNA、ANB、OJ、UI/SN、UL-ELine、LL-ELine等在治疗后减小,差异有显著性;SNB、LI/MP、U1/PP、U6/PP、L6/PP、鼻唇角及颏唇角增大,差异有显著性。下颌升支、下颌体以及下颌综合长度均有增长,差异有显著性。下颌平面角在正畸治疗后无显著变化。结论 Twinblock在生长发育期的Ⅱ类患者的治疗中可以减小覆盖、覆he、改善he关系并有效的改善患者下颌后缩的面型。对于存在拥挤的Ⅱ类患者,Twinblock及二期治疗时的拔牙治疗也可以达到良好的治疗效果。
作者 李巍然
出处 《口腔正畸学》 2004年第1期25-28,共4页 Chinese Journal of Orthodontics
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参考文献10

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二级参考文献3

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