title: Simultaneous Bimaxillary Surgery and Mandibular Reconstruction With a 3-Dimensional Printed Titanium Implant Fabricated by Electron Beam Melting: A Preliminary Mechanical Testing of the Printed Mandible.
abstract: A woman presented with a long history of mandibular defects posterior to the left lower first premolar caused by inadequate reconstruction after removal of a tumor on the left side of the mandible. In the frontal view, extreme facial asymmetry was apparent. The dental midline of the mandible was deviated 10 mm to the left compared with the dental midline of the maxilla, and all maxillary teeth were inclined to the left owing to dental compensation. There was an 8-mm maxillary occlusal cant relative to the maxillary first molar. Bimaxillary surgery using computer-assisted designed and computer-assisted manufactured devices without an intermediate occlusal splint was performed to align the maxilla and mandible at the correct position, and reconstructive surgery for the mandible using a 3-dimensional printed titanium mandible was concurrently performed. In particular, during the virtual mandible design, 2 abutments that enabled the prosthetic restoration were included in the mandible using a computer-assisted design program. This report describes the successful functional and esthetic reconstruction of the mandible using electron beam melting technology, an alternative technique for reconstruction of mandibles that did not undergo radiation therapy.
authors.affiliation: Assistant Professor, Department of Oral and Maxillofacial Surgery, Dental Center, Chung-Ang University Hospital, Seoul, Korea. Electronic address: davidjoy76@gmail.com.
authors.forename: Ui-Lyong
authors.initials: UL
authors.lastname: Lee
authors.affiliation: Teaching and Research Assistant, Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, BK21 PLUS Project, Seoul, Korea.
authors.forename: Jae-Sung
authors.initials: JS
authors.lastname: Kwon
authors.affiliation: Senior Researcher, R&D Center, Medyssey Co, Ltd, Jechon, Korea.
authors.forename: Su-Heon
authors.initials: SH
authors.lastname: Woo
authors.affiliation: Assistant Professor, Department of Oral and Maxillofacial Surgery, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
authors.forename: Young-Jun
authors.initials: YJ
authors.lastname: Choi
mesh_terms: D000328:Adult; D004583:Electrons; D004955:Esthetics, Dental; D005146:Facial Asymmetry / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D008339:Mandibular Neoplasms / Q000150:complications / Q000601:surgery; D008341:Mandibular Prosthesis; D063175:Mandibular Reconstruction / Q000379:methods*; D008437:Maxilla / Q000601:surgery*; D066330:Printing, Three-Dimensional; D011474:Prosthesis Design; D014025:Titanium
chemical_list: D014025:Titanium