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带有清晰对齐器的下牙的杆辅助身体延伸:有限元分析的有限元分析

Yi Yang¹, Lu Liu², Qingsong Jiang¹

¹Department of Orthodontics, State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041 Sichuan, China.

International orthodontics

|October 1, 2024

概括

清晰对齐器治疗本身就会导致不必要的关节运动. 添加一个带有特定引力的口腔悬臂可以改善身体的牙延伸,并减少对膜骨的压力.

科学领域:

矯正牙科矯正牙科是一種矯正牙科.
生物力学生物力学
牙科技术牙科技术

背景情况:

清晰对齐疗法 (CAT) 是一种流行的正义牙科治疗方法.
经常需要长,但只用CAT就可以导致不良的牙移动.

研究的目的:

用清晰对齐器疗法分析下大延伸的生物力学.
为了评估口腔杆在改善牙延伸结果方面的有效性.

主要方法:

用有限元分析来建模下,下牙和牙周带.
模拟了四组:只有对齐器,对齐器用口腔杆和II类口腔引,对齐器用口腔杆和II类口腔/舌头引,对齐器用口腔杆和I/II类口腔/舌头引.

主要成果:

单独使用清晰对齐器疗法就导致了 mesial 倾斜, lingual 倾斜和入侵.
一个带有II级口腔引力的口腔悬臂减少了 mesial tipping,但增加了 lingual tipping.
通过将II类口腔和舌头引与口腔悬臂相结合,可以通过一些口腔倾斜实现身体伸展.
在没有口腔舌头倾斜的情况下,通过I,II类口腔和II类舌头伸缩的组合实现了最佳的身体伸缩,减少了气囊骨应力.

结论:

单独的清晰对齐器治疗可能会导致下下的不必要的骨倾斜和侵入.
结合口腔悬臂可以增强对长的生物机械控制.
通过精确的引力组合,可以通过清晰的对齐器和口腔悬臂来实现身体长.

关键词:

这是一个Cantilever.清晰的对齐器对齐器可以清晰地对齐.有限元素研究研究.摩拉伸展摩拉伸展是指摩拉伸展.

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