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J Am Dent Assoc. 2013 Apr;144(4):397-405.

An assessment of the usefulness of jaw kinesiography in monitoring temporomandibular disorders: correlation of treatment-related kinesiographic and pain changes in patients receiving temporomandibular joint injections.

Author information

  • 1TMD Clinic, Department of Maxillofacial Surgery, University of Padova, Italy. daniele.manfredini@tin.it

Abstract

BACKGROUND:

The authors conducted a study in patients with temporomandibular joint (TMJ) osteoarthritis to assess whether treatment-related changes in pain levels and chewing ability coincide with a change in jaw kinesiographic (KG) parameters.

METHODS:

The authors selected 34 patients with a diagnosis of TMJ osteoarthritis that met Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) to undergo a cycle of five weekly arthrocentesis procedures with injections of 1 milliliter hyaluronic acid. They performed a permutation test to assess the correlation between changes across time (from baseline to end of treatment) in two clinical outcome parameters-pain level and chewing ability-and changes across time in the KG outcome parameters.

RESULTS:

The authors observed improvement across time in both chewing ability (F = 8.328; P = .005) and pain level (F = 10.903; P = .002). The authors observed no significant changes in any KG variables. With minor exceptions, no significant correlations were shown between changes in the clinical and KG parameters during the treatment period.

CONCLUSIONS:

Treatment-related changes in pain levels and chewing ability in patients with TMJ osteoarthritis do not coincide with changes in KG parameters.

PRACTICAL IMPLICATIONS:

If one assumes pain variables to be the primary outcome measures in assessing treatment of TMJ osteoarthritis, KG recordings of the jaw are not useful for monitoring TMJ osteoarthritis in the clinical setting.

Comment in

  • TMD diagnostics. [J Am Dent Assoc. 2013]
  • Monitoring TM disorders. [J Am Dent Assoc. 2013]
  • Authors' response. [J Am Dent Assoc. 2013]
  • More about TMD diagnostics. [J Am Dent Assoc. 2013]
  • Perceiving pain. [J Am Dent Assoc. 2013]
PMID:
23543694
[PubMed - indexed for MEDLINE]
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