title: Masticatory dysfunction in patients with myotonic dystrophy (type 1): a 5-year follow-up.
abstract: Eight patients with myotonic dystrophy type 1, DM1 (age range 45-63 years) were followed for a period of 5 years. Two sets of data analyzing masticatory function and activities of daily living (ADL) were obtained at baseline and at 5 years. The results from both time points were compared. The number of food items considered easy to chew, maximum bite force, occlusal contact area, number of teeth, and ADLs were significantly reduced (p < 0.05) at the second assessment when compared to the first. During the intervening 5 years, six of the eight patients adopted a soft diet. These results suggest deterioration in ADLs and masticatory function of patients with DM1. Continuous evaluation of the feeding ability and the type of diet are necessary for patients with DM1.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan. george@minf.med.fukuoka-u.ac.jp
authors.forename: George
authors.initials: G
authors.lastname: Umemoto
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Nakamura
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Oya
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Kikuta
mesh_terms: D000203:Activities of Daily Living; D001732:Bite Force; D003766:Dental Occlusion; D003817:Dentition; D004576:Electromyography; D005247:Feeding Behavior; D005260:Female; D005500:Follow-Up Studies; D005502:Food / Q000145:classification; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008406:Masseter Muscle / Q000503:physiopathology; D008409:Mastication / Q000502:physiology*; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology; D009223:Myotonic Dystrophy / Q000503:physiopathology*; D011446:Prospective Studies; D013703:Temporal Muscle / Q000503:physiopathology