Full-Digital Workflow for Fabricating a Custom-Made Direct Metal Laser Sintering (DMLS) Mandibular Implant: A Case Report

Francesco Grecchi, Piero Antonio Zecca, Aldo Macchi, Alessandro Mangano, Federica Riva, Emma Grecchi and Carlo Mangano
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Francesco Grecchi: Department of Maxillofacial Surgery, IRCCS Istituto Ortopedico Galeazzi, Via Galeazzi 4, 20161 Milan, Italy
Piero Antonio Zecca: Department of Medicine and Surgery, Dental School, University of Varese, Via Piatti 10, 21100 Varese, Italy
Aldo Macchi: Department of Medicine and Surgery, Dental School, University of Varese, Via Piatti 10, 21100 Varese, Italy
Alessandro Mangano: Private Practice, 22015 Gravedona ed Uniti, Italy
Federica Riva: Department of Maxillofacial Surgery, IRCCS Istituto Ortopedico Galeazzi, Via Galeazzi 4, 20161 Milan, Italy
Emma Grecchi: Department of Oral Surgery, IRCCS Fondazione Ca’ Granda, Ospedale Maggiore Policlinico, Via Sforza 35, 20122 Milan, Italy
Carlo Mangano: Department of Dental Sciences, University Vita Salute San Raffaele, Via Olgettina 60, 20132 Milan, Italy

IJERPH, 2020, vol. 17, issue 8, 1-13

Abstract: Direct Laser Metal Sintering (DLMS) is an additive manufacturing (AM) technique that is capable of manufacturing metal parts according to a three-dimensional (3D) design made using computer-assisted-design (CAD) software, thanks to a powerful laser beam that melts selectively micro-powder layers, one on top of the other, until the desired object is generated. With DMLS, it is now possible to fabricate custom-made titanium implants for oral and maxillofacial applications. We present the case of a 67-year-old woman diagnosed with a squamous cell carcinoma of the mandible. The patient underwent subtotal mandibular resection; conventional reconstruction procedures failed to rehabilitate the function of the mandible. A prosthesis replacing the resected mandible was designed and fabricated using a digital workflow. The extensive bone defect was rehabilitated with a prosthesis replacing the mandibular bone and supporting a morse-taper dental prosthesis. The masticatory function was reestablished.

Keywords: CAD/CAM; titanium mesh; mandibular resection (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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