通过添加和减去技术制造的临时皇冠的最大断裂负荷
The International journal of prosthodontics
|May 24, 2024
概括
选择临时皇冠材料和热循环显著影响断裂强度. 这些因素对于牙科应用中临时CAD/CAM修复的耐用性至关重要.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 在CAD/CAM牙科.
背景情况:
- 临时皇冠对于在修复治疗期间保护牙至关重要.
- 评估临时皇冠材料的机械性能对于临床成功至关重要.
- 通过CAD/CAM技术,可以高效地制造临时修复.
研究的目的:
- 为了评估五种不同的中间CAD/CAM冠状材料的断裂负荷.
- 研究热循环对这些材料的断裂强度的影响.
主要方法:
- 一百个临时皇冠是由五种CAD/CAM材料制造的.
- 皇冠经过热循环,模拟了口内条件.
- 使用通用测试机器确定断裂强度.
主要成果:
- 材料类型和热循环都显著影响了断裂强度 (P < .001).
- 在材料类型和热循环之间没有发现显著的相互作用 (P = .176).
结论:
- 材料选择和环境暴露显著影响中期冠骨折强度.
- 进一步的研究可能会探索长期耐用性和临床性能.
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