Additive Manufacturing: A Novel Method for Fabricating Cobalt-Chromium Removable Partial Denture Frameworks

Area of Science:

• Dental Materials Science
• Biomedical Engineering
• Manufacturing Technology

Background:

• Cobalt-chromium (Co-Cr) alloys are widely used for removable partial denture (RPD) frameworks.
• Traditional manufacturing methods for RPD frameworks can be time-consuming and labor-intensive.
• Additive manufacturing (AM), including 3D printing (3DP), presents a novel approach to fabricating dental prosthetics.

Purpose of the Study:

• To review and discuss Additive Manufacturing (AM) technologies applicable to cobalt-chromium (Co-Cr) removable partial denture (RPD) frameworks.
• To examine the scope and clinical relevance of 3D-printed Co-Cr RPD frameworks.
• To assess the benefits and limitations of AM in RPD framework fabrication.

Main Methods:

• A comprehensive literature review of English-language publications from the last 10 years.
• Focus on studies reporting the first 3D-printed RPD framework.
• Analysis of Additive Manufacturing technologies, specifically photopolymerization and selective laser melting.

Main Results:

• Additive manufacturing (AM) offers significant advantages in manufacturing speed for cobalt-chromium (Co-Cr) removable partial denture (RPD) frameworks.
• Photopolymerization and selective laser melting are key AM technologies reviewed for RPD framework production.
• Clinical relevance of 3D-printed Co-Cr RPD frameworks is discussed based on recent publications.

Conclusions:

• Additive manufacturing (AM) demonstrates considerable promise for the efficient production of cobalt-chromium (Co-Cr) removable partial denture (RPD) frameworks.
• Despite speed benefits, current AM technologies face challenges related to cost and other practical aspects for RPD fabrication.
• Further advancements are needed to overcome existing limitations for widespread clinical application of 3D-printed RPD frameworks.