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Hard tissue structural changes in TMJ morphology prior to orthodontic therapy: a complex motion tomographic study
Muralidhar Mupparapu1, Ivana Chow, Anna Uppal
1Division of Oral and Maxillofacial Radiology, Department of Diagnostic Sciences, UMDNJ-New Jersey Dental School, Newark, New Jersey 07101-1709, USA. mupparamu@umdnj.edu
Quintessence International (Berlin, Germany : 1985)
|April 27, 2011
Summary
Hard tissue changes in the temporomandibular joint (TMJ) are not sufficient to diagnose TMJ disorders. Further imaging like MRIs may be needed to correlate structural changes with symptoms.
Area of Science:
- Dentistry
- Radiology
- Orthodontics
Background:
- Temporomandibular joint (TMJ) disorders are common and linked to the head and neck's neuromasticatory and myoskeletal systems.
- Investigating hard tissue morphology of the TMJ is crucial for understanding associated clinical symptoms.
Purpose of the Study:
- To explore hard tissue structural changes in the temporomandibular joint (TMJ) using complex motion tomography.
- To correlate observed morphologic changes with clinical symptoms of disc-related TMJ disorders.
Main Methods:
- Complex motion tomograms were acquired for 114 TMJs in 57 patients.
- TMJs were classified as symptomatic (S) or asymptomatic (AS) and evaluated by an oral and maxillofacial radiologist.
Main Results:
- Most TMJs showed normal glenoid fossa and articular eminence morphology.
- Abnormal condylar head morphology and joint space were prevalent in both symptomatic and asymptomatic groups.
- Condylar head in coronal view and joint space showed statistically significant deviations between symptomatic and asymptomatic joints.
Conclusions:
- Hard tissue imaging alone is insufficient to establish a definitive link with TMJ clinical symptoms.
- Integrating simultaneous Magnetic Resonance (MR) imaging could enhance the predictability of clinical correlations for TMJ disorders.
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