在热循环和刷毛过程中,PETG材料的抗性
Luka Šimunović1, Tadeja Blagec1, Senka Meštrović1
1Department of Orthodontics, School of Dental Medicine Zagreb, University of Zagreb, 10000 Zagreb, Croatia.
Dentistry journal
|May 26, 2023
概括
这项研究发现,热循环和刷毛显著增加了表面粗度,并影响了用于正牙保持器的PETG材料的质量. 埃尔科杜尔A1显示最稳定,而Biolon是最不稳定的.
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
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- 聚乙烯二甲酸甘醇 (PETG) 广泛用于制造牙科支器.
- 在口服条件下PETG的长期稳定性对于保持剂的有效性至关重要.
- 外部因素,如温度波动和机械磨损,可以改变材料的性能.
研究的目的:
- 评估热循环和刷牙对PETG材料表面粗度和质量的影响.
- 在模拟的口腔条件下比较不同品牌PETG的稳定性.
- 为了识别具有较强耐降解性的PETG配方.
主要方法:
- 96个PETG标本使用三种类型的牙刷进行了热循环和刷牙.
- 表面粗度和质量在基线,热循环后和刷毛后进行测量.
- 进行统计分析以确定显著变化 (p < 0.001).
主要成果:
- 在所有测试的PETG品牌中,热循环和刷毛都显著增加了表面粗度.
- 比奥隆的初始粗度最低,而A轨的初始粗度最高.
- 热循环仅在Biolon中显著增加了质量;刷毛仅在Essix C+中显著减少了质量.
结论:
- 在暴露于热循环 (增加粗度和质量) 和刷毛 (增加粗度,减少质量) 时,PETG材料表现为不稳定.
- 埃尔科杜尔A1被证明是最稳定的PETG材料,而Biolon显示最不稳定.
- 材料选择对于确保PETG牙支器的寿命和性能至关重要.
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