High-Speed Low-Damage Dental Machining Center

高速低损伤牙科加工中心

• 批准号: 7325376
• 负责人: Said Jahanmir
• 金额: $ 9.41万
• 依托单位: MOHAWK INNOVATIVE TECHNOLOGY, INC.
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2008-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7325376
• 关键词: Air; American Dental Association; Architecture; Ceramics; Clinical; Collaborations; Computer Assisted; Computer software; Computer-Aided Design; Computer-Assisted Manufacturing; Connecticut; Data; Dental; Dental Handpieces; Dental Offices; Dental Porcelain; Dental crowns; Dentistry; Depth; Diamond; Ensure; Evaluation; Feasibility Studies; Foundations; Funding Mechanisms; Future; Generations; Grant; Health; Institutes; Intention; International; Laboratories; Laboratory Research; Licensing; Marketing; Maryland; Methods; Monitor; Motor; Oils; Performance; Phase; Positioning Attribute; Program Research Project Grants; Publishing; Purpose; Rate; Research; Science; Scientist; Small Business Funding Mechanisms; Small Business Innovation Research Grant; Small Business Technology Transfer Research; Speed; Standards of Weights and Measures; Structure; Surface; Survival Rate; System; Technology; Testing; Theoretical model; Time; USA Georgia; Universities; Western Asia Georgia; Zirconium; base; commercialization; cost; data acquisition; dental structure; design; feeding; improved; innovation; metrology; novel; programs; research study; residence; restoration; restorative dentistry; sensor; success; willingness; zirconium oxide

DESCRIPTION (provided by applicant): The overall objective of the proposed SBIR program is to design, manufacture, and evaluate a high-speed, low-damage, machining center for fabrication of Dental restorations in the Dental office or laboratory. This new method for fabrication of Dental restorations based on computer aided design and computer aided manufacturing (CAD/CAM) has revolutionized Dentistry during the past decade. These systems are currently used to fabricate ceramic crowns and other Dental structures. While the CAD/CAM restorations have proven to be more reliable than those fabricated by traditional methods, the 10-year survival rate is still less than 90%. Furthermore, these systems cannot be used for machining of restorations made from harder ceramics such as zirconia. The proposed machining center will be designed with an innovative integrated air-driven, high-speed, precision spindle/motor assembly to allow high machining rates while ensuring low potential for machining damage: thus, enabling rapid fabrication of low-damage Dental restorations by machining. Phase I plan includes design, fabrication, and testing of an air-driven, high-speed, motor-spindle assembly operating at ultra-high speeds; and machining data obtained on two machinable Dental ceramics and partially stabilized zirconia in a full factorial design of experiments showing reduced machining damage as compared to the current practice. The data on machining rates and surface/subsurface damage will be compared with similar data already published by the applicant from a previous NIDCR Program Project Grant on machining with a high-speed Dental handpiece. The aim of these experiments is to test the hypothesis that high-speed machining reduces the propensity for generation of machining damage. While high-speed machining has been implemented for grinding of industrial ceramics, including zirconia, such an approach is yet to be considered for Dental CAD/CAM systems.

描述（由申请人提供）：拟议的SBIR计划的总体目标是设计，制造和评估牙科办公室或实验室牙科修复体制造的高速，低损伤，加工中心。这种新方法用于制造基于计算机辅助设计和计算机辅助制造（CAD/CAM）的牙科修复体（CAD/CAM）在过去十年中彻底改变了牙科。这些系统目前用于制造陶瓷冠和其他牙科结构。尽管事实证明，CAD/CAM修复体比传统方法制造的修复体更可靠，但10年的生存率仍低于90％。此外，这些系统不能用于加工由氧化锆等较硬的陶瓷制成的修复体。所提出的加工中心将通过创新的集成空气驱动，高速，精确的主轴/电动机组件进行设计，以允许高加工速率，同时确保对加工损伤的潜力较低：因此，可以通过加工来快速制造造成的低损伤牙齿修复。第一阶段的计划包括以超高速度运行的空气驱动，高速电动主轴组件的设计，制造和测试；与当前实践相比，在实验的完整阶乘设计中，在两种可加工的牙线陶瓷和部分稳定的氧化锆设计中获得的加工数据与当前实践相比减少了。将有关加工速率和表面/地下损伤的数据与申请人已经发布的NIDCR计划项目赠款已经发布的类似数据进行比较，并使用高速牙科手机进行了加工。这些实验的目的是检验以下假设：高速加工会减少产生加工损伤的倾向。虽然已经实施了高速加工来研磨包括氧化锆在内的工业陶瓷，但对于牙科CAD/CAM系统，这种方法尚未考虑这种方法。