Clin Surg | Volume 2, Issue 1 | Research Article | Open Access

Reported Opening Limitations as a TMD Symptom: A Clinical Report on Diagnoses and Outcome

Alexandra Carlsson1, Bengt Wenneberg2 and Christina Mejersjö3*

1Centre for Oral Rehabilitation, Public Dental Health, Linköping, Sweden
2Department of Stomatognathic Physiology, Gothenburg University, Sweden
3Clinic of Orofacial Pain, VGRegion Public Dental Health and Sahlgrenska Academy, Sweden

*Correspondance to: Christina Mejersj´┐Ż 

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Objective: To study diagnoses of reported mouth opening limitations and the outcome after treatment, to better understand the symptom and the prognosis.Methods: New referrals to an Orofacial Pain & Temporomandibular Disorders (TMD) Clinic with the symptom of “jaw locking” in the referral were considered for this clinical prospective report. This referrals constituted 5.8% of all the referrals during a ten month period, and 40 patients were included. Case history, clinical examination and diagnoses were made according to the RDC/ TMD criteria. MRI and CT examinations of the temporomandibular joint were performed when indicated. Reported symptoms and clinical signs were compared for different diagnoses. The treatment was non-invasive and conservative, no patient underwent surgery. At end of treatment, the clinical examination was repeated, the primary and definite diagnoses were compared, and the improvement after treatment was evaluated.Results: The main diagnoses were disc displacement with reduction (DDwR), 23%, disc displacement without reduction (DDwoR), 30%, and myofascial pain with limited opening (wLO), 45%. General Hypermobility was significantly more frequent in the disc displacement diagnosis compared with myofascial pain (p<0.05). After treatment, the mean opening capacity was good, regardless of the diagnosis.Conclusion: A report of jaw locking is not indicative of a single diagnosis of TMD. A diagnosis based on the history and a clinical examination is generally accurate. The symptom of opening limitations responds well to conservative treatment methods.


Jaw locking; Diagnosis; Treatment outcome; Disc displacement; Myofascial pain


Carlsson A, Wenneberg B, Mejersj´┐Ż C. Reported Opening Limitations as a TMD Symptom: A Clinical Report on Diagnoses and Outcome. Clin Surg. 2017; 2: 1572.

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