在玻璃中对聚合技术对牙膏基树脂的强度和硬度进行了比较
Arjun S1, Anna S Babu1, Krishnapriya V N1
1Prosthodontics and Implantology, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, Kochi, IND.
Cureus
|January 6, 2025
概括
与传统树脂相比,具有较短聚合周期的高冲击假牙基树脂显示出更好的曲和冲击强度. 这提高了假牙的耐用性和性能.
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
- 牙科假肢 牙科假肢
背景情况:
- 由聚甲基甲酸制成的烯酸假牙容易发生微裂和骨折,这是由于口腔内外应力造成的.
- 改善假牙材料的强度对于长寿和患者满意度至关重要.
研究的目的:
- 为了比较高冲击假牙树脂与传统假牙树脂的冲击和屈曲强度.
- 评估短热聚合周期和长热聚合周期对这些特性的影响.
主要方法:
- 准备了两组烯酸树脂样本 (常规和高冲击).
- 标本经历了短时间或长时间的热聚合周期.
- 使用三点曲试验测试了曲强度,使用Charpy撞击试验测试了冲击强度.
主要成果:
- 具有较短聚合周期的高冲击树脂表现出明显更高的曲和冲击强度.
- 传统树脂在短周期与长周期相比,具有更高的屈曲强度,这是统计学上显著的差异.
- 对于传统树脂,在短周期和长周期之间没有观察到冲击强度的显著差异.
结论:
- 使用具有短热聚合周期的高冲击假牙基树脂可以提高曲和冲击强度.
- 这种优化可以导致更耐用和更有弹性的假牙.
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