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，制造和评估用于牙科办公室或实验室制造牙科修复体的高速，低损伤加工中心。这种基于计算机辅助设计和计算机辅助制造（CAD/CAM）的牙科修复体制造新方法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。虽然CAD/CAM修复体已被证明比传统方法制作的修复体更可靠，但10年生存率仍低于90%。此外，这些系统不能用于加工由较硬的陶瓷（如氧化锆）制成的修复体。拟议的加工中心将采用创新的集成气动，高速，精密主轴/电机组件设计，以实现高加工速率，同时确保低加工损伤的可能性：因此，通过加工快速制造低损伤的牙科修复体。第一阶段计划包括设计、制造和测试以超高速运行的空气驱动、高速、电机主轴组件；在两种可加工牙科陶瓷和部分稳定氧化锆的全因子实验设计中获得的加工数据显示，与目前的做法相比，加工损伤减少了。关于加工速率和表面/次表面损伤的数据将与申请人已经发表的类似数据进行比较，这些数据来自以前的NIDCR计划项目资助，用于高速牙科机头的加工。这些实验的目的是验证高速加工降低加工损伤产生倾向的假设。虽然高速加工已经实现了工业陶瓷的磨削，包括氧化锆，但这种方法尚未被考虑用于牙科CAD/CAM系统。