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Eccentric anterior wear facets in the diagnosis of temporomandibular disorders
Author(s) -
KIRVESKARI P.,
JÄMSÄ T.
Publication year - 2002
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1046/j.1365-2842.2002.01026_12.x
Subject(s) - medicine , tooth wear , temporomandibular joint , eccentric , anterior teeth , incisor , dentistry , orthodontics , mandible (arthropod mouthpart) , mastication , muscles of mastication , physics , botany , quantum mechanics , biology , genus
The present study aimed at testing whether eccentric anterior bruxing facets are associated with clinical signs from the temporomandibular joints and with palpatory tenderness of the muscles of mastication. Wear facets in the canine and incisor areas were assessed by inspecting dental stone casts made at baseline and at the end of a 4‐year clinical trial involving 129 adolescents and young adults. The subjects who showed distinct increase in wear were divided into three groups: (i) wear pattern indicating an anterior thrust of the working side mandible, (ii) wear pattern indicating a posterior thrust of the working side mandible and (iii) other wear patterns. The assessment of wear patterns was made without knowledge of clinical signs of temporomandibular disorders (TMD). The eventual change in muscular or joint signs of TMD from baseline to the final examination was then obtained from the records, and the association with wear pattern was calculated. There was no significant evidence of an association between eccentric anterior wear and signs of TMD. The direction of the mandibular thrust generated by bruxing was also unassociated with the presence of TMJ and muscular signs. In conclusion, the predictive value of eccentric anterior wear facets in young subjects is too low to be helpful in the diagnosis of TMD .