Occlusal adjustment and the incidence of demand for temporomandibular disorder treatment

Statement of problem. Contrary to clinical opinion, the structural risk from dental occlusion in temporomandibular disorders has been questioned or considered to be insignificant in clinical practice. Purpose. This study tested the effect of elimination of occlusal interference through occlusal adju...

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Bibliographic Details
Published in:The Journal of prosthetic dentistry 1998-04, Vol.79 (4), p.433-438
Main Authors: Kirveskari, Pentti, Jamsa, Tapio, Alanen, Pentti
Format: Article
Language:English
Subjects:
Adolescent
Adult
Centric Relation
Child
Dental Occlusion
Dental Occlusion, Traumatic - therapy
Dentistry
Double-Blind Method
Facial Pain - physiopathology
Female
Follow-Up Studies
Humans
Incidence
Male
Masticatory Muscles - physiopathology
Occlusal Adjustment
Risk Factors
Temporomandibular Joint Disorders - etiology
Temporomandibular Joint Disorders - physiopathology
Temporomandibular Joint Disorders - therapy
Treatment Outcome
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Summary:Statement of problem. Contrary to clinical opinion, the structural risk from dental occlusion in temporomandibular disorders has been questioned or considered to be insignificant in clinical practice. Purpose. This study tested the effect of elimination of occlusal interference through occlusal adjustment, on the incidence of temporomandibular disorders. Material and methods. In a controlled clinical trial of 146 healthy children and adolescents, half of the subjects underwent occlusal adjustment aimed at elimination of the presumed structural risk, and the other half underwent mock adjustment. Adjustments were repeated every 6 months over a period of 4 years. The outcome variable was the incidence of temporomandibular disorders, operatively defined as request for treatment of symptoms characteristic of the disorders with presence of clinical signs demonstrated in the muscles of mastication and/or jaw joint. Results. The cumulative incidence rate was 9/67 in the mock adjustment group and 1/60 in the real adjustment group, for a relative risk of 8.06. The difference between groups was statistically significant ( p = 0.019). Conclusions. Elimination of the presumed structural risk from the dental occlusion appeared to significantly reduce the incidence of temporomandibular disorders in a select group of young subjects. (J Prosthet Dent 1998;79:433-8.)
ISSN:0022-3913
1097-6841
DOI:10.1016/S0022-3913(98)70158-1