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SBIR计划的总体目标是设计，制造和评估一个高速，低损伤，加工中心，用于在牙科办公室或实验室制造牙科牙列。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牙冠和其他牙科结构。虽然CAD/CAM制造已被证明比传统方法制造的更可靠，但10年生存率仍低于90%。此外，这些系统不能用于加工由更硬的陶瓷如氧化锆制成的陶瓷。拟议的加工中心将设计有一个创新的集成气动，高速，精密主轴/电机组件，以允许高加工速率，同时确保低加工损坏的可能性：因此，能够通过加工快速制造低损坏的牙科修复体。第一阶段的计划包括设计，制造和测试的空气驱动，高速，电机主轴组件在超高速运行;和加工数据上获得的两个可加工的牙科陶瓷和部分稳定的氧化锆在一个完整的析因设计的实验显示减少加工损伤相比，目前的做法。关于加工速率和表面/亚表面损伤的数据将与申请人已经公布的类似数据进行比较，这些数据来自于先前的NIDCR计划项目资助，涉及使用高速牙科手机进行加工。这些实验的目的是检验高速加工降低加工损伤产生倾向的假设。虽然高速加工已被用于工业陶瓷（包括氧化锆）的磨削，但这种方法尚未被考虑用于牙科CAD/CAM系统。