在不同的柱子和核心系统中对断裂阻力进行比较评估,具有不同的位置:一个体外研究
Priyanka D Jadhav1, Rohit Shetty2, Deepak Mehta3
1Department of Prosthodontics, Bharati Vidyapeeth Dental College and Hospital, Sangli, Maharashtra, India, Phone: +91 8371418057,
The journal of contemporary dental practice
|October 4, 2024
概括
这项研究比较了Edelweiss和玻璃纤维柱和核心系统的断裂阻力,这些系统具有不同的铁杆位置. 部分功能杆在埃德尔威斯系统中表现出更高的断裂阻力,而环形杆在玻璃纤维柱子中表现出更高的优势.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 生物材料工程 生物材料工程
背景情况:
- 经过内牙治疗的牙往往需要后部和核心恢复以保持结构完整.
- 传统上建议采用360度的来保持最佳留,但部分有效性的证据是有限的.
- 评估具有不同螺杆设计的不同柱子和核心系统对于改善临床结果至关重要.
研究的目的:
- 为了比较Edelweiss和玻璃纤维柱子和核心系统的断裂阻力.
- 为了研究不同铁管位置 (部分功能,部分非功能,环形) 对断裂阻力的影响.
- 提供科学证据支持在牙修复中使用部分.
主要方法:
- 54个提取的下第1前被分为埃德尔韦斯 (A组) 和玻璃纤维 (B组) 柱子和核心系统.
- 每个组根据铁杆位置进一步细分:部分功能,部分非功能和环形.
- 使用通用测试机 (UTM) 在压力负载下评估破裂阻力,直到故障.
主要成果:
- 在埃德尔韦斯小组中,部分功能性铁管表现出更高的断裂阻力.
- 在玻璃纤维组中,环形铁管表现出优越的断裂阻力.
- 在所有测试组和铁杆位置观察到有利的断裂模式 (MOF).
结论:
- 螺杆类型显著影响了Edelweiss和玻璃纤维柱子和核心系统的断裂阻力.
- 部分功能性铁杆可以足以使用适当的后台系统进行恢复.
- 该研究强调了考虑轮设计与后部和核心材料选择相结合的重要性,以提高牙修复结果.
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