[Development of the dental CAD/CAM system]

Area of Science:

• Biomaterials and Biomedical Engineering
• Dental Technology
• Computer-Aided Engineering

Context:

• The integration of digital technologies in dentistry is revolutionizing prosthetic fabrication.
• Traditional methods for creating dental prosthetics are time-consuming and may lack precision.
• Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) offers a pathway to automated and precise dental restorations.

Purpose:

• To investigate the application of a CAD/CAM system for the automated fabrication of dental prosthetic appliances.
• To detail the methodologies for 3D measurement, Computer-Aided Design (CAD), and Computer-Aided Manufacturing (CAM) in this dental context.
• To evaluate the use of laser displacement meters and 3D point digitizers for data acquisition.

Summary:

• The study applies a CAD/CAM system to dentistry, using laser displacement meters and 3D point digitizers to capture precise data from plaster models of prepared teeth.
• Computer-Aided Design (CAD) involves modifying typical crown data and individual tooth margin data using Affine transformations and spline interpolation.
• Computer-Aided Manufacturing (CAM) utilizes spline interpolation for tool path calculation, enabling the automated milling of prosthetic appliances based on the digital design.

Impact:

• This research demonstrates a viable digital workflow for producing dental prosthetics with enhanced accuracy and efficiency.
• The findings contribute to the advancement of digital dentistry, potentially reducing chair time and improving patient outcomes.
• The methodology highlights the critical role of precise 3D measurement and advanced data processing in modern dental CAD/CAM systems.