title: Swallowing appliance: intraoral reshaping prosthesis for dysphagia secondary to oral floor cancer: a pilot study.
abstract: Patients with oral floor cancer often have difficulty swallowing solid foods. The aim of this study was to improve the propulsion of solid foods using a swallowing appliance (SW-A). Subjects comprised three patients with oral floor cancer who had undergone curative surgery. Each participant was asked to swallow gelatin under three conditions: without an SW-A, with a maxillary SW-A, and with both maxillary and mandibular SW-As. This procedure was repeated thrice with three volumes of gelatin (2.5, 5, and 7.5 ml), with videofluorographic swallowing study. Swallowing was assessed on the basis of whether the participant could propel the gelatin from the oral cavity to the pharynx. No subject could propel 2.5 ml of gelatin to the pharynx without an SW-A or with only a maxillary SW-A in place. When both SW-As were used, all subjects could propel all three volumes of gelatin. The mandibular SW-A complemented the compensatory effects of the maxillary SW-A.
authors.affiliation: From the Departments of Rehabilitation Medicine (YK, NS, MK, MT, YM) and Oral and Maxillofacial Surgery (YO, KS), School of Medicine, Tokai University Oiso Hospital, Kanagawa, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Koyama
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Ota
authors.forename: Kazuo
authors.initials: K
authors.lastname: Sakaizumi
authors.forename: Naoshi
authors.initials: N
authors.lastname: Simoda
authors.forename: Mitsuhiko
authors.initials: M
authors.lastname: Kodama
authors.forename: Minoru
authors.initials: M
authors.lastname: Toyokura
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Masakado
mesh_terms: D000368:Aged; D003679:Deglutition / Q000502:physiology; D003680:Deglutition Disorders / Q000209:etiology / Q000503:physiopathology / Q000534:rehabilitation*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009060:Mouth Floor / Q000473:pathology / Q000601:surgery; D009062:Mouth Neoplasms / Q000150:complications / Q000473:pathology / Q000534:rehabilitation* / Q000601:surgery*; D010865:Pilot Projects; D011182:Postoperative Care / Q000379:methods; D019736:Prostheses and Implants; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000379:methods*; D011788:Quality of Life; D018570:Risk Assessment; D012494:Sampling Studies; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014741:Video Recording