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Masticatory dysfunction in patients with myotonic dystrophy (type 1): a 5-year follow-up
George Umemoto1, Hirokazu Nakamura, Yasushi Oya
1Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan. george@minf.med.fukuoka-u.ac.jp
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.
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