定制的3D异构骨块用于下口腔骨重建 增加对舌头突起力的抵抗力:有限元素分析
Sebastian Dominiak1, Jennifer Majer2, Christoph Bourauel3
1Department and Institute of Oral Surgery, Wroclaw Medical University, Krakowska 26 Street, 50-425 Wrocław, Poland.
Journal of functional biomaterials
|January 24, 2025
概括
定制的异构骨块 (CABB) 提高了切口的稳定性,防止舌头突起的力量,特别是当放置在膜骨附近时. 在显著的骨损失的情况下,在0.1毫米的距离下观察到最佳结果.
科学领域:
- 牙科生物力学 牙科生物力学
- 复原牙科是复原牙科的一种.
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- 舌头突起的力量可以加剧缺陷,特别是口腔壁骨脱落.
- 3D定制基骨块 (CABB) 是针对这种缺陷的治疗方案.
- 了解骨块的准确性对于恢复牙抗性至关重要.
研究的目的:
- 评估骨块调整精度如何影响牙抵抗突起力.
- 评估CABB在减轻舌头力量对带有膜骨损失的牙的影响中的有效性.
主要方法:
- 用有限元素分析 (FEM) 来建模下带与脱声和CABB.
- CABB被定位在不同距离 (0.1毫米,0.4毫米,1.0毫米) 从气泡骨.
- 模拟的舌头突出力 (0-5 N) 应用于前牙.
主要成果:
- CABB增强显著提高牙的稳定性.
- 由于CABB与膜骨的距离更近,因此具有更大的稳定性.
- 最稳定的结果是 1⁄4 脱光和 0.1 毫米的骨块距离.
结论:
- 舌头突起的力量虽然不是最强,但在现有的骨损失的情况下,可能会产生严重的后果.
- 即使在早期的术后期,CABB也对切割刀的弹性产生了积极的影响.
相关概念视频
Bone Remodeling
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Bone Remodeling and Repair
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...


