Investigastion of the bonding mechanisms between veneering and framework material of all-ceramic dental restorations
全瓷牙修复体贴面与骨架材料粘接机制研究
基本信息
- 批准号:272425256
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2015
- 资助国家:德国
- 起止时间:2014-12-31 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
All-ceramic dental prosthesis offers outstanding biocompatibility, excellent mechanical properties and aesthetic appearance. Regarding the mechanical and optical properties, a restoration made of yttria stabilized tetragonal zirconia (framework material) and porcelain (veneering material) matches the natural tooth closer than any available alternative. Due to the wide range of indications, all-ceramic restorations have the potential to replace metal-ceramic prosthesis as the standard therapy. So far, the failure rate of ceramic frameworks is higher compared to conventionell restorations with a metal framework, due to a lower bond strength between the components. Understanding the bonding mechanisms between yttria stabilized tetragonal zirconia and porcelain bears the potential for targeted improvement regarding tooth fracture by generating matched subsurface properties of both ceramics. The research objective is the investigation of the bonding mechanisms and the failure mechanisms determined by the manufacturing chain, while producing all-ceramic restorations. The influence of the components material properties on the bond strength will be evaluated. Following the chain of production, the effects and interactions of the production processes on the surface and subsurface properties of both bonding partners will be determined. Concluding, an empirical model is build. After validity of the model the results are transferred to stylized restorations. The empirical model describes the bond strength of the system based on material properties and parameters of the production process. Following the manufacturing and machining strategy will by adapted to increase the lifetime of all-ceramic restorations.
全瓷修复体具有优异的生物相容性、机械性能和美观的外观。关于机械和光学性能,由氧化钇稳定的四氧化锆(框架材料)和陶瓷(贴面材料)制成的修复体比任何可用的替代品都更接近天然牙齿。由于全瓷修复体适应症广泛,有可能取代金属陶瓷修复体成为标准治疗方法。到目前为止,由于组件之间的结合强度较低,陶瓷框架的失效率高于具有金属框架的传统组件。了解氧化钇稳定的四氧化锆和陶瓷之间的结合机制,有针对性地改善牙齿断裂的潜力,通过产生匹配的两种陶瓷的亚表面性能。本研究的目的是研究在生产全瓷双相陶瓷时,由制造链决定的粘结机制和失效机制。将评价组件材料特性对粘合强度的影响。在生产链之后,将确定生产过程对两种粘合伙伴的表面和次表面性质的影响和相互作用。最后,建立了一个实证模型。模型的有效性后,结果被转移到程式化的解释。该经验模型描述了基于材料特性和生产工艺参数的系统结合强度。遵循制造和机械加工策略将被调整以增加全陶瓷涂层的使用寿命。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr. Bernd Breidenstein其他文献
Professor Dr. Bernd Breidenstein的其他文献
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{{ truncateString('Professor Dr. Bernd Breidenstein', 18)}}的其他基金
Manufacturing and Process Behaviour of Cutting Tools made of Stone
石材切削工具的制造及加工行为
- 批准号:
392377639 - 财政年份:2018
- 资助金额:
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Research Grants
Optimizing of PVD coatings for dry cutting applications by FE-simulation
通过 FE 模拟优化干切削应用的 PVD 涂层
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258383513 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Research Grants
Applikationsspezifisches Design von PVD-Beschichtungen für Zerspanwerkzeuge
针对切削刀具的 PVD 涂层的特定应用设计
- 批准号:
213842972 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Grants (Transfer Project)
Development of PVD-coated cutting tools made of natural rocks
开发由天然岩石制成的 PVD 涂层切削工具
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509573611 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
Load-optimized design of PVD tool coatings
PVD 刀具涂层的负载优化设计
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462262910 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants (Transfer Project)
Functionalized subsurface zone for load-oriented fatigue behavior of hardened components
用于硬化部件负载导向疲劳行为的功能化地下区域
- 批准号:
468005437 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
Process-reliable adjustment of subsurface zone properties in the machining of high-strength and ductile steels using an adaptive manufacturing system
使用自适应制造系统对高强度和延性钢加工中的地下区域特性进行过程可靠的调整
- 批准号:
401800578 - 财政年份:
- 资助金额:
-- - 项目类别:
Priority Programmes
Influence of preparation-induced residual stresses in the cutting edge of cutting tools on the wear behavior of extremely hard cutting materials
切削刀具切削刃中制备引起的残余应力对极硬切削材料磨损行为的影响
- 批准号:
445562529 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
Combined production of AISI H13 tool steel using laser-based additive manufacturing and mechanical finishing to increase performance and durability
使用激光增材制造和机械精加工联合生产 AISI H13 工具钢,以提高性能和耐用性
- 批准号:
528603925 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
Investigation of the correlations between the properties, the grinding process and the operational behavior of rocks as a cutting material
研究岩石作为切削材料的特性、磨削过程和操作行为之间的相关性
- 批准号:
503208052 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
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