Additive Manufacturing Technologies Used for 3D Metal Printing in Dentistry
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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.
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.
There appears room for improvement between 3D printed metals and ceramic interfaces and precision before such technologies could be favoured over conventional cast methods.
Keywords3D printing Additive manufacturing Electron beam melting Metal Prosthodontics Selective laser sintering Selective laser melting
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
Human and Animal Rights and Informed Consent
This article does not contain any studies with human or animal subjects performed by any of the authors.
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- 1.Singh V. Rapid prototyping, materials for RP and applications of RP. Int J Eng Res Sci. 2013;4:473–80.Google Scholar
- 9.Witkowski S. CAD-/CAM in dental technology. Quintessence Dent Technol. 2005;28:169–84.Google Scholar
- 10.Torabi K, Farjood E, Hamedani S. Rapid prototyping technologies and their applications in prosthodontics, a review of literature. J Dent Shiraz Univ Med Sci. 2015;16:1–9.Google Scholar
- 11.ASTM. Committee F42 on Additive Manufacturing Technologies, West Conshohocken, Pa. 2009 Standard terminology for additive manufacturing—general principles and terminology. ISO/ASTM52900–15.Google Scholar
- 12.•• 3D Systems, Inc. 1988 Stereo Lithography Interface Specification. Valencia, CA. First patent on additive manufacturing technologies. Google Scholar
- 13.Deckard C, Beaman J. Process and control issues in selective laser sintering. ASME Prod Eng Div. 1988;33:191–7.Google Scholar
- 14.Deckard CR. 1986. Patent US 4863538-A. Method and apparatus for producing parts by selective sintering.Google Scholar
- 21.• Murr LE, Gaytan SM, Ramirez DA, et al. Metal fabrication by additive manufacturing using laser and electron beam melting technologies. J Mater Sci Technol. 2012;28:1–14. Good technical explanation and differentiation between Selective Laser Melting and Electron Beam Melting additive manufacturing technologies. CrossRefGoogle Scholar
- 26.AMS 4999 Specification. Titanium alloy laser deposited products 6Al-4V annealed. Warrendale: SAE; 2002.Google Scholar
- 30.International standard ISO 22674. Dentistry—metallic materials for fixed and removable restorations and appliances. 2nd ed. 2016. pp. 12–36.Google Scholar
- 37.Jevremovic D, Puskar T, Kosec B, et al. The analysis of the mechanical properties of F75 Co–Cr alloy for use in selective laser melting (SLM) manufacturing of removable partial dentures (RPD). Metalurgija. 2012;51:171–4.Google Scholar
- 41.MJJ D. Titanium—a technical guide. 2nd ed. Materials Park: ASM International; 2000. p. 95–123.Google Scholar
- 43.Lütjering G, Williams JC. Titanium. 2nd ed. Berlin: Springer; 2007. p. 86–103.Google Scholar
- 48.•• Williams RJ, Eggbeer D, Bibb R. CAD/CAM rapid manufacturing techniques in the fabrication of removable partial denture frameworks. Quintessence J Dent Technol. 2008;6:42–50. First dental application of additive manufacturing was described on this article for removable partial denture framework pattern. Google Scholar
- 52.Lee JW, Park JM, Park EJ, et al. Accuracy of a digital removable partial denture fabricated by casting a rapid prototyped pattern: a clinical study. J Prosthet Dent. 2017; https://doi.org/10.1016/j.prosdent.2016.12.007.
- 68.AINSA/ADA. Standard No. 38-Metal-Ceramic Dental Restorative Systems: 2000 (Reaffirmed 2015). Geneva. Switzerland.Google Scholar
- 69.ISO 9693:1999(E) Metal ceramic dental restorative systems. Geneva, Switzerland.Google Scholar