Computer-assisted generation of all-ceramic crowns and fixed partial dentures

Area of Science:

• Restorative Dentistry
• Biomaterials Engineering
• Digital Manufacturing

Background:

• Computer-assisted design (CAD) and computer-assisted machining (CAM) are crucial for modern dental restorations.
• Current systems must meet and exceed existing standards for material and clinical quality.
• Polyvalent processing capabilities are essential for system development.

Purpose of the Study:

• To evaluate the Precident system for computer-assisted manufacturing in restorative dentistry.
• To assess its capabilities in producing high-quality dental prosthetics.
• To determine its clinical and economic viability.

Main Methods:

• Utilized an improved CCD chip scanner for automated cast scanning.
• Employed a numeric control (NC) machine capable of processing diverse materials.
• Routinely applied the system for single crowns and fixed prosthetic devices (FPDs) up to four units.

Main Results:

• The Precident system demonstrated improved scanner resolution and automated casting scanning.
• It facilitates the production of frameworks for fixed prosthetic devices (FPDs) and removable prosthetic devices (RPDs).
• The system's polyvalence allows processing of metal alloys, ceramics, and fiber-reinforced resins.

Conclusions:

• The Precident system is a clinically proven and competitive CAD/CAM solution for dental restorations.
• It meets high standards for material and clinical quality.
• CAD/CAM all-ceramic restorations produced by the system are cost-competitive with traditional methods.