一个新的双箭头辅助牙,用于牙再植入
Mariam Maroof1, Renganathan Sujithra1, Ravi Prakash Tewari1
1Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India.
概括
一种由超弹性NiTi合金制成的新型辅助性牙 splint有效地减少了牙的压力和移动性. 这种双U箭头 (DUA) splint 优化为0.7mm的臂宽,其性能优于传统的片,促进更好的愈合.
科学领域:
- 生物材料工程 生物材料工程
- 牙科生物力学 牙科生物力学
- 材料科学 材料科学 材料科学
背景情况:
- 牙支柱通过允许生理移动性和重新分配压力来稳定受伤的牙.
- 具有负波桑比率的辅助结构可以提高牙的生物机械性能.
研究的目的:
- 为了优化基于超弹性NiTi合金的双U箭头 (DUA) 辅助性牙 splint 的尺寸.
- 为了评估DUA的生物力学性能,减少压力和移动的牙.
主要方法:
- 通过改变臂宽 (0.5-0.8毫米) 来优化DUA splint尺寸.
- 有限元分析以评估臂宽对波桑比率,有效模量和曲刚度的影响.
- 在模拟的负荷下使用3D大突破牙模型进行生物力学评估.
主要成果:
- 增加臂宽可以提高有效模量和曲刚度,同时降低负波桑比率.
- 一个0.7毫米的手臂宽度DUA splint显著降低了主要应力 (最大11.14%,最小23.89%) 和牙的移动性 (24.77%).
- 与商用创伤 splint 相比,DUA splint 显示出更高的性能.
结论:
- 手臂宽0.7毫米的DUA辅助性 splint有效地减少了压力和流动性在生物限制内的牙.
- 这促进了成功的再植入,PDL愈合,以及为膜骨骨化提供生理移动性.
- DUA splint有助于预防PDL化,根吸收和牙结等并发症.
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The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.