Economical CAD/CAM System to Produce Dental Restorations

描述（由申请人提供）：该项目的目标是开发一种便携式，价格适中的牙科修复体计算机辅助设计/计算机辅助制造（CAD/CAM）系统。初步测试表明，将接触式扫描仪与库存铣削装置相结合，可以生产陶瓷牙冠，总成本约为2.5万美元或更少。现有系统的价格从49,000美元到250,000美元不等，限制了它们的使用和进入市场的渗透。我们将研究CAD/CAM系统的技术能力、扫描速率、恢复设计、复制速率和输出，该系统由修改可用的CAD软件、扫描仪和铣削硬件构建而成。此外，我们将开发碾磨多层/多色块的能力，以生产具有渐变颜色的修复，比目前的单色碾磨修复更美观。这种便携式系统可用于向农村、居家或其他服务不足的人群提供护理。第一阶段旨在确定概念的可行性，包括易用性、扫描精度、制造时间和每次修复的比较成本。第二阶段包括软件的改进、扫描和铣削过程以及系统的工业设计。该系统将使生产高质量的修复具有可靠的精度和较低的人工成本。

DESCRIPTION (provided by applicant): The objective of this project is the development of a portable, moderately priced Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) system for Dental restorations. Preliminary tests have demonstrated that a combination of a contact scanner with a stock milling unit can produce ceramic Dental crowns at a total cost of approximately $25,000 or less. Available systems cost from $49,000 to $250,000, limiting their use and penetration into the marketplace. We will investigate the technical capabilities, scanning rates, restoration design, replication rate and output of a CAD/CAM system constructed from modifying available CAD software, scanner, and milling hardware. Furthermore we will develop capabilities to mill multi-layered/multi-colored blocks to produce restorations with graded color that are more esthetic than current monochromatic milled restorations. This portable system may be used to deliver care to rural, home bound, or other under served populations. Phase I is Aimed at determining the feasibility of the concept with respect to ease of use, scanning accuracy, fabrication time, and comparative cost per restoration. Phase Il involves refinement of the software, scanning and milling process and industrial design of the system. This system will enable the production of high quality restorations with reliable accuracy and lower labor costs.