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使用一台Instron机器测试不同正牙陶支架的抗拉力断裂强度绑翼

Anisa H AlBadr¹, Nabeel F Talic¹

¹Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.

The Saudi dental journal

|December 18, 2023

概括

新发布的陶支架在绑翼强度上有所不同. 单晶 Inspire ICETM 显示出优越的断裂阻力,而 DISCREETTM 混合支架显示出最少的. 这突显了支架材料和设计对正义牙科设备耐用性的影响.

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
材料工程材料工程材料工程

背景情况:

陶支架在正牙科中广泛使用.
陶支架的频繁断裂,特别是在绑翼处,代表了一个重要的临床缺点.
需要评估新开发的陶支架的机械性能,以解决这些缺陷.

研究的目的:

为了比较四种不同类型的新可用的正牙陶支架的绑翼的抗拉力断裂强度.
为了确定支架品牌和晶体结构是否影响绑翼强度.

主要方法:

在四种陶支架类型上进行了体外研究:两个单晶 (CLEARTM,Inspire ICETM),一个多晶 (Symtri ClearTM) 和一个透明混合 (DISCREETTM).
在一台Instron机器上使用钢接线对绑翼施加拉力.
测量和统计分析了最大负载 (MxL) 和断裂强度 (FS) (p ≤0.05).

主要成果:

在四种支架类型中观察到绑翼断裂强度的统计学上显著差异.
启发ICETM (单晶) 显示了最高的MxL (202.78N) 和FS (107.3MPa).
CLEARTM 和 DISCREETTM (混合) 显示MxL最低 (分别为79.63N和47.01N),其中DISCREETTM具有最小的断裂阻力.

结论:

陶支架的品牌 (制造规格) 和晶体结构都会显著影响它们的绑翼拉伸强度.
与多晶体和混合型相比,单晶陶支架,如Inspire ICETM,提供优越的绑翼断裂阻力.
这些发现表明,材料组成和制造工艺是陶支架耐用性的关键因素.

关键词:

断裂强度强度的断裂强度是什么最大的负载最大负载.单晶陶支架单晶陶支架聚晶陶支架聚晶陶支架绑定翅膀骨折折断绑定翅膀骨折

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