印刷和磨牙假牙基材的屈曲强度的比较
Shatha Alshali1, Ghadeer Basunbul2, Anhar Basunbul2
1Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia. saalshali@kau.edu.sa.
BMC oral health
|August 10, 2024
概括
与3D打印替代品相比,数字磨的假牙基材显示出优越的曲强度. 在热循环和疲劳后,削和打印方法都显示出强度下降,修复进一步降低了耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 牙科技术 牙科技术
背景情况:
- 数字牙科正在彻底改变假牙.
- 评估新型假牙基材的机械性能对于临床成功至关重要.
研究的目的:
- 为了比较数字磨与3D打印假牙基材的屈曲强度.
- 评估老化 (热循环,疲劳) 和修复对材料强度的影响.
主要方法:
- 测试了六种不同的假牙基材 (磨和打印)
- 标本进行了三点曲测试,以确定曲强度和模量.
- 材料经过热循环,疲劳循环和模拟修复程序.
主要成果:
- 磨砂材料的屈曲强度明显高于印刷材料.
- 热循环和疲劳循环降低了磨料和印刷材料的屈曲强度.
- 经过修复的标本的屈曲强度明显降低;复合树脂修复优于印刷材料的烯酸树脂修复.
结论:
- 与3D打印材料相比,数字磨的假牙基材提供更高的曲强度.
- 环境因素和维修方法对假牙基础材料的机械完整性有很大影响.
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