用热塑性聚合物制成的扣子是否能确保可拆卸部分假牙得到足够的固定? 一个系统的审查和元分析
Luis F F B Soares1, Matheus S C Costa1, Joel F S Junior2
1PhD student, Dental School of Bauru (FOB), University of São Paulo (USP), Bauru, SP, Brazil.
The Journal of prosthetic dentistry
|August 7, 2025
概括
与聚合物替代品相比,- (Co-Cr) 扣扣提供了更好的固定性. 然而,聚乙基 (PEEK) 具具有可比的初始保留和稳定的长期性能,这使得它们成为可拆卸部分假牙 (RPD) 的可行的选择.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 生物材料工程 生物材料工程
背景情况:
- 关于可拆卸部分假牙 (RPD) 的热塑性聚合物扣子的临床指示和性能存在缺乏共识.
- 与传统材料相比,评估聚合物锁具的保留性质对于优化RPD设计和患者结果至关重要.
研究的目的:
- 系统地审查和分析现有的关于由聚合物制造的RPD扣子的保持力的文献.
- 为了比较聚合物RPD扣与- (Co-Cr) 合金制成的扣的保持力.
主要方法:
- 在多个数据库 (PubMed/MEDLINE,Web of Science,Cochrane Library) 进行了全面的系统搜索,一直持续到2024年1月.
- 分析包括使用平均差异 (MD) 和95%置信区间 (CI) 的连续数据,分析初始和最终时间点的环形和双Aker扣.
- 遵循PRISMA指南,该研究在开放科学框架中注册.
主要成果:
- 在0.5毫米的下切处,在Co-Cr和聚乙 (PEEK) 环形扣之间,在初始保留力方面没有发现显著的差异 (MD = 0.63 N,P = 780).
- - (Co-Cr) 扣在其他元分析中显示,与聚合物扣相比,扣扣的保留率更高.
- 聚合物锁组随着时间的推移,保持值呈现出更好的线性.
结论:
- - (Co-Cr) 扣在相同的设计中提供了最高的保留能力,其次是聚乙基 (PAEK) 和聚氧甲聚合物.
- 聚乙基 (PEEK) 扣子,特别是1.5毫米厚度和0.5毫米下切,适用于可拆卸部分假牙 (RPD) 应用.
- 聚合物锁具随着时间的推移提供稳定的保留力,PAEK成为RPD锁具的有希望的替代品.
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