PurposeFacial trauma may lead to temporomandibular dysfunction (TMD). The aim of this study was to clarify the occurrence and characteristics of TMD in patients surgically treated for mandibular fractures not involving mandibular condyle.
MethodsThis prospective, single-center follow-up study was comprised of patients who underwent surgery for a non-condylar mandibular fracture. Patients were first evaluated at presentation, and again six months post-surgery to assess the function of the masticatory system, using the Helkimo index.Specifically, this index incorporates two complementary sub-indices: the subjective symptomatic (anamnestic) index (A i ), and the objective clinical dysfunction index (D i ). The A i was recorded both at presentation and the six month follow-up. The D i was recorded at the six month follow-up.
ResultsThirty-one patients completed the study. All patients were men (mean age 26.2, range 18-47 years). Four (12.9%) patients developed severe symptoms of dysfunction during the study period according to the A i . Clinical findings (D i ) were observed in 25 (80.6%) patients, but these were not associated with symptoms of dysfunction.
Conclusions
TMD is common six months after surgery in patients with non-condylar mandibular fractures.Patients with such fractures should be evaluated for dysfunction during follow-ups, and referred for further treatment if necessary.
Evaluation of temporomandibular functionThe Helkimo anamnestic (A i ) and clinical (D i ) indices were used to identify the occurrence and severity of TMD 17 . During the pre-operative visits, patients' anamnestic subjective symptoms (A i ) were assessed using a questionnaire and an interview. At the six month follow-up, patients were evaluated again with the same questionnaire and interview. In addition, a comprehensive clinical examination of the masticatory system was performed according to the Helkimo clinical index (D i ).This index was only recorded at the six month follow-up; pre-operative TMD status could not be