Additive Manufacturing Technologies Used for 3D Metal Printing in Dentistry

Abstract

Purpose of Review

Compared to conventional casting methods used for processing different alloys for dental applications, additive manufacturing technologies reduce manufacturing time and costs, minimize human errors and prevent possible defects in the cast objects. This review highlights working mechanisms, possible advantages and drawbacks of recent additive manufacturing technologies used for metal processing in dentistry.

Recent Findings

The literature reviewed indicated that powder-based fusion mainly based on selective laser sintering, selective laser melting and electro beam melting are the most commonly used technologies for 3D metal printing in dentistry for dental appliances made of CoCr and Ti6Al4V. Although mechanical properties of 3D printed alloys could be considered satisfactory, accuracy and reproducibility data do not present consistent results.

Summary

There appears room for improvement between 3D printed metals and ceramic interfaces and precision before such technologies could be favoured over conventional cast methods.

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