凝固前单个皇冠的边际差距的决定因素:一个总体审查
James Dudley1, Taseef Hasan Farook2
1Associate Professor, Adelaide Dental School, The University of Adelaide, Adelaide, SA, Australia.
The Journal of prosthetic dentistry
|October 28, 2025
概括
这一综合性审查发现,皇冠类型,材料和制造方法不会显著影响边际差距. 与显微镜相比,印记复制仪表高估了边缘差距,在体外可接受的120微米的极限.
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
- 基于证据的牙科.
背景情况:
- 边缘适合对于牙冠的长寿和成功至关重要.
- 报告的边际差距值的变化需要进行全面分析.
- 需要对体外研究进行系统审查,以澄清影响因素.
研究的目的:
- 量化综合了关于体外边际差距的系统审查中的发现.
- 评估皇冠类型,制造材料,测量仪器,支柱材料,牙类型和制造方法对边缘空隙的影响.
主要方法:
- 在2025年6月对多个数据库 (EBSCO Host,Scopus,PubMed,Web of Science) 进行了系统的搜索.
- 系统审查和元分析 (PRISMA) 准则和乔安娜·布里格斯研究所 (JBI) 批判性评估清单的应用首选报告项目.
- 通过Welch测试,Games Howell hoc后期测试和强大的回归进行了雨分析.
主要成果:
- 包括 17 个系统性审查,平均边际差距为 79.4 ± 22.8 μm.
- 对于皇冠类型或制造材料,没有发现边际差距的显著差异.
- 印象复制仪器的边际差距明显大于显微镜 (β=37.86,P<.001).
结论:
- 皇冠类型,材料和制造方法不会显著影响边际差距.
- 与显微镜相比,印记复制仪器高估了边缘间隙测量.
- 当代可接受的体外皇冠边缘间隙极限是120μm.
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