title: TMD in class III patients referred for orthognathic surgery: psychological and dentition-related aspects.
abstract: OBJECTIVE
  To investigate temporomandibular disorders (TMD), psychosocial, and occlusal variables in class III orthognathic surgery patients with respect to the control subjects, and to compare psychosocial and occlusal features in class III patients with different Research Diagnostic Criteria for TMD (RDC/TMD) diagnoses.
  
  
  METHODS
  The study enrolled 44 class III patients referred for orthognathic surgery and 44 individuals without a malocclusion. TMD, depression and somatization were assessed by RDC/TMD. Occlusal analysis included Helkimo's Occlusal Index items, overjet and overbite.
  
  
  RESULTS
  In the controls, patients with class III deformities had higher prevalence of myogenic TMD, increased grade of chronic pain, and more occlusal deviations. Within the study group, TMD patients reported higher depression score (P < 0.01), myofascial pain was related to higher depression and somatization grades (P < 0.01, P < 0.05 respectively), and disc displacement showed relation with RCP-ICP slide interferences (P < 0.05).
  
  
  CONCLUSIONS
  With respect to subjects without a malocclusion, TMD in class III dentofacial deformities is similar in prevalence, but differs in clinical appearance. Occlusal, but not psychosocial features deviate from those in the controls. While psychosocial variables accompanied TMD and myofascial pain, increased RCP-ICP slide was related to disc displacement in class III patients.
authors: Department of Prosthodontics, Faculty of Medicine (Head: Prof. Milan Kulić (MBiol, PhD)), University of East Sarajevo, 5 Studentska St, 73300 Foča, Bosnia and Herzegovina. Electronic address: eirene14a@yahoo.com.
authors: Irena
authors: I
authors: Mladenović
authors: Department of Oral Rehabilitation (Head: Prof. Slobodan Dodić (DDS, PhD)), Faculty of Dental Medicine, University of Belgrade, 4 Rankeova St., 11000 Belgrade, Serbia.
authors: Slobodan
authors: S
authors: Dodić
authors: Clinic for Maxillofacial Surgery, (Head: Srboljub Stošić (MD, PhD)), Military Medical Academy, 17 Crnotravska St., Belgrade, Serbia.
authors: Srboljub
authors: S
authors: Stošić
authors: Department of Maxillofacial Surgery (Head: Prof. Dragan Krasić (MD, PhD)), Faculty of Medicine, University of Niš, 52 Dr Zoran Đinđić Blvd., 18000 Niš, Serbia.
authors: Dragan
authors: D
authors: Petrović
authors: Department of Orthodontic, Dental Clinic (Head: Prof. Zoran Lazić (DMD, PhD)) Military Medical Academy, 17 Crnotravska St., Belgrade, Serbia.
authors: Tatjana
authors: T
authors: Cutović
authors: Clinic for Maxillofacial Surgery, (Head: Srboljub Stošić (MD, PhD)), Military Medical Academy, 17 Crnotravska St., Belgrade, Serbia.
authors: Ružica
authors: R
authors: Kozomara
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D059350:Chronic Pain / Q000150:complications; D003430:Cross-Sectional Studies; D003768:Dental Occlusion, Centric; D003863:Depression / Q000523:psychology; D005157:Facial Pain / Q000150:complications; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000150:complications; D008297:Male; D008313:Malocclusion, Angle Class III / Q000150:complications* / Q000523:psychology; D056948:Orthognathic Surgical Procedures; D057887:Overbite / Q000150:complications; D013001:Somatoform Disorders / Q000523:psychology; D019224:Temporomandibular Joint Disc / Q000473:pathology; D013705:Temporomandibular Joint Disorders / Q000150:complications* / Q000523:psychology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications; D055815:Young Adult
keywords: Class III malocclusion; Depression; Occlusion; Somatization; Temporomandibular disorders