在清晰对齐器治疗中,附着物磨损对上犬旋转的影响:三维有限元素分析
Qiuying Li1, Bowen Xu1, Dongyu Fang1
1Department of Orthodontics, School of Stomatology, Capital Medical University, No.9, Fanjiacun Road, Beijing, 100071, China.
BMC oral health
|February 4, 2026
概括
附着部件的磨损显著降低了尾犬旋转的清晰对齐器的有效性. 优化的附件比矩形保持更长的旋转效率,但监控磨损对于成功的正牙治疗至关重要.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 计算生物学 计算生物学
背景情况:
- 清晰对齐器治疗是一种流行的正统牙科治疗.
- 附着部件的磨损会影响治疗的有效性.
- 牙上的旋转是一个常见的正统牙科目标.
研究的目的:
- 为了研究附着物磨损对上腺犬旋转在清晰对齐器治疗期间的影响.
- 为了在不同的磨损条件下比较垂直矩形和旋转优化的附件的性能.
- 分析牙移位和压力分布在牙周带和牙根.
主要方法:
- 开发了大的三维有限元素模型,包括牙,牙周带和清晰的对齐器.
- 在五个磨损级别 (M0-M8) 中,模拟上犬的旋转,使用两种附着类型 (垂直矩形和旋转优化).
- 分析了牙的移位,旋转角度,以及根部和牙周带的等效应力.
主要成果:
- 增加的附着物磨损导致狗的旋转角度减少,并降低了两种附着物类型的应力水平.
- 矩形附件显示,自M4磨损水平下,旋转效率明显降低至50%以下.
- 优化的附件保持了50%以上的效率,直到M8的磨损水平,证明了卓越的性能.
结论:
- 在清晰对齐器治疗中,附着物磨损会对上犬的旋转效率产生负面影响.
- 与矩形相比,旋转优化的附件更适合纠正上犬的旋转.
- 连接器磨损的持续监测和及时恢复对于有效的清晰对齐器治疗至关重要,特别是在六个月后.
相关概念视频
Dimensional Analysis
64.8K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
Conversion Factors and Dimensional Analysis
The unit...
64.8K
Dimensional Analysis
681
Dimensional analysis is a valuable technique in fluid mechanics for simplifying complex problems by reducing them into dimensionless groups. These groups capture the essential relationships between the variables involved, allowing researchers and engineers to analyze fluid flow without dealing with each variable individually. This approach reduces the number of independent variables, allowing for easier analysis and better understanding of physical phenomena.
In fluid mechanics, dimensional...
In fluid mechanics, dimensional...
681
Dimensional Analysis
2.2K
Dimensional analysis is a powerful tool that is used in physics and engineering to understand and predict the behavior of physical systems. The basic idea behind dimensional analysis is to express physical quantities in terms of fundamental dimensions such as the mass, length, and time. Derived dimensions like the velocity, acceleration, and force are derived from the combinations of these fundamental dimensions.
Dimensional analysis allows us to analyze and compare physical quantities on a...
Dimensional analysis allows us to analyze and compare physical quantities on a...
2.2K
Dimensional Analysis
24.4K
The concept of dimension is important because every mathematical equation linking physical quantities must be dimensionally consistent, implying that mathematical equations must meet the following two rules. The first rule is that, in an equation, the expressions on each side of the equal sign must have the same dimensions. This is fairly intuitive since we can only add or subtract quantities of the same type (dimension). The second rule states that, in an equation, the arguments of any of the...
24.4K
Classification of Elements and Compounds
73.2K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
73.2K
Elements and Compounds
105.0K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
105.0K


