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Updated: Sep 17, 2025

Author Spotlight: 3D Movement Assessment of Maxillary Posterior Teeth in Clear Aligner Treatment
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具有不同远部覆盖设计的透明对齐器的生物机械效应与尾第一干脱稳的II类弹性引相结合:有限元素研究

Yiyan Zhang1,2,3, Peiyan Wang2,4, Chunmiao Jiang1,2

  • 1Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.

BMC oral health
|July 3, 2025
PubMed
概括

远距离露出清晰对齐器 (DUCA) 有效地减少了清晰对齐器处理 (CAT) 期间的第二骨 anchorage损失. 然而,II类弹性皮带对第二牙提供了有限的保护,需要更高的力量来保持前部 anchorage.

关键词:
第二类弹性弹性皮带清晰的对齐器对齐器可以清晰地对齐.有限元素分析的研究.摩拉失稳定性 摩拉失稳定性

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Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
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