title: No effect of glucosamine sulfate on osteoarthritis in the temporomandibular joints--a randomized, controlled, short-term study.
abstract: OBJECTIVE
  The aim of this study was to evaluate the clinical effects of oral glucosamine sulfate, compared with placebo, on osteoarthritis in the temporomandibular joints (TMJs).
  
  
  METHODS
  Fifty-nine patients, consecutive referrals fulfilling the research diagnostic criteria for temporomandibular disorder for TMJ osteoarthritis, confirmed roentgenographically, were randomized to the daily intake of 1,200 mg glucosamine sulfate or identical placebo capsules in this double-blind trial. Pain on visual and verbal rating scales and opening capacity were registered before and after 6 weeks of medication.
  
  
  RESULTS
  The signs and symptoms were similar in the groups initially and they were ameliorated over time. No differences in improvement between groups after treatment were indicated. Eight patients in the glucosamine group and 2 in the placebo group stopped the medication prematurely. Gastrointestinal side effects were reported by a total of 10 and 3 patients, respectively.
  
  
  CONCLUSIONS
  Oral glucosamine sulfate was not superior to placebo in reducing signs and symptoms of osteoarthritis in the TMJs in this short-term trial.
authors: Department of Orofacial Pain, Public Dental Service, Sahlgrenska University Hospital, Mölndal and Mun-H-Center, National Orofacial Resource for Rare Disorders, Public Dental Service Region Västra Götaland, and Department of Behavioral and Community Dentistry, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden. birgitta.johansson-cahlin@vgregion.se
authors: Birgitta Johansson
authors: BJ
authors: Cahlin
authors: Lars
authors: L
authors: Dahlström
mesh_terms: D000082:Acetaminophen / Q000627:therapeutic use; D000284:Administration, Oral; D018712:Analgesics, Non-Narcotic / Q000627:therapeutic use; D004311:Double-Blind Method; D005157:Facial Pain / Q000188:drug therapy; D005260:Female; D005500:Follow-Up Studies; D005944:Glucosamine / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D007422:Intestines / Q000187:drug effects; D008297:Male; D008409:Mastication / Q000502:physiology; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000188:drug therapy*; D010147:Pain Measurement; D010919:Placebos; D011446:Prospective Studies; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D013060:Speech / Q000502:physiology; D013270:Stomach / Q000187:drug effects; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging / Q000188:drug therapy*; D016896:Treatment Outcome; D015000:Yawning / Q000502:physiology
chemical_list: D018712:Analgesics, Non-Narcotic; D010919:Placebos; D000082:Acetaminophen; D005944:Glucosamine