title: Recording the trajectory of mouth opening and closing for the fabrication of an occlusal splint.
abstract: Various attempts have been made to transfer the transverse hinge axis and mandibular movement pattern to the mechanical articulator and to fabricate dental prostheses with the fewest errors. However, the occlusal adjustment of a dental prosthesis is always necessary to ensure a precise intraoral fit even when the facebow transfer technique is used in the cast mounting procedure. This is because the true hinge axis is not obtained when the facebow is applied to a patient who exhibits a variable mandible movement pattern rather than a single rotational axis. This technique merges facial scanning data and digital data obtained from a diagnostic cast based on measurements of several landmarks of the anterior teeth and makes it possible to design a dental prosthesis while considering the mandibular opening and closing movements of the patient. This technique could be used to design prosthetic restorations, occlusal splints, and intermediate splints for orthognathic surgery and for complete mouth rehabilitation when changes in vertical dimensions are needed.
authors.affiliation: Clinical Research Assistant Professor, Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Republic of Korea.
authors.forename: Jong-Eun
authors.initials: JE
authors.lastname: Kim
authors.affiliation: Clinical Associate Professor, Department of Prosthodontics, Gangnam Severance Dental Hospital, Seoul, Republic of Korea.
authors.forename: Joo Hyun
authors.initials: JH
authors.lastname: Kwon
authors.affiliation: Assistant Professor, Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Republic of Korea.
authors.forename: Jee-Hwan
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Professor, Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Republic of Korea. Electronic address: jfshim@yuhs.ac.
authors.forename: June-Sung
authors.initials: JS
authors.lastname: Shim
mesh_terms: D059925:Anatomic Landmarks; D017076:Computer-Aided Design; D003761:Dental Impression Technique; D003766:Dental Occlusion; D006801:Humans; D008334:Mandible / Q000502:physiology*; D003765:Models, Dental; D009068:Movement; D017090:Occlusal Splints; D016382:Orthodontic Appliance Design / Q000379:methods*