title: A pressure-distribution sensor (PDS) for evaluation of lip functions.
abstract: The purpose of this study was to develop and to test a pressure-distribution sensor (PDS) for evaluating lip functions. The PDS is fabricated as a disposable cartridge and is based on the principle of optical-pressure conversion used in tactile sensors of robot arms. Its advantages are in measuring sealing forces, contact area, and pressure-distribution patterns of the lips at maximum effort. We used the PDS to evaluate pressure-distribution patterns of long-face subjects with extremely large interlabial distances. The results suggest that the PDS is a useful device for evaluating lip sealing functions and their changes after orthodontic therapy or orthognathic surgery.
authors.affiliation: Department of Orthodontics, School of Dentistry, Tohoku University, Sendai, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Umemori
authors.forename: J
authors.initials: J
authors.lastname: Sugawara
authors.forename: M
authors.initials: M
authors.lastname: Kawauchi
authors.forename: H
authors.initials: H
authors.lastname: Mitani
mesh_terms: D004209:Disposable Equipment; D004867:Equipment Design; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D008046:Lip / Q000033:anatomy & histology / Q000502:physiology*; D008313:Malocclusion, Angle Class III / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D008334:Mandible / Q000473:pathology / Q000601:surgery; D008365:Manometry / Q000295:instrumentation; D008437:Maxilla / Q000002:abnormalities / Q000601:surgery; D055095:Optics and Photonics / Q000295:instrumentation; D009971:Orthodontics, Corrective / Q000295:instrumentation*; D010027:Osteotomy / Q000379:methods; D010865:Pilot Projects; D011312:Pressure; D012371:Robotics / Q000295:instrumentation; D012826:Silicone Elastomers; D013314:Stress, Mechanical
chemical_list: D012826:Silicone Elastomers