Relationship between anterior disc displacement with/without reduction and effusion in temporomandibular disorder patients using magnetic resonance imaging
Imaging Science in Dentistry
;
: 245-251, 2013.
Article
in English
| WPRIM
| ID: wpr-83823
ABSTRACT
PURPOSE:
This study was performed to evaluate the relationship between anterior disc displacement and effusion in temporomandibular disorder (TMD) patients using magnetic resonance imaging (MRI). MATERIALS ANDMETHODS:
The study subjects included 253 TMD patients. MRI examinations were performed using a 1.5 T MRI scanner. T1- and T2-weighted images with para-sagittal and para-coronal images were obtained. According to the MRI findings, temporomandibular joint (TMJ) disc positions were divided into 3 subgroups normal, anterior disc displacement with reduction (DWR), and anterior disc displacement without reduction (DWOR). The cases of effusion were divided into 4 groups normal, mild (E1), moderate (E2), and marked effusion (E3). Statistical analysis was made by the Fisher's exact test using SPSS (version 12.0, SPSS Inc., Chicago, IL, USA).RESULTS:
The subjects consisted of 62 males and 191 females with a mean age of 28.5 years. Of the 253 patients, T1- and T2-weighted images revealed 34 (13.4%) normal, DWR in 103 (40.7%), and DWOR in 116 (45.9%) on the right side and 37 (14.6%) normal, DWR in 94 (37.2%), and DWOR in 122 (48.2%) joints on the left side. Also, T2-images revealed 82 (32.4%) normal, 78 (30.8%) E1, 51 (20.2%) E2, and 42 (16.6%) E3 joints on the right side and 79 (31.2%) normal, 85 (33.6%) E1, 57 (22.5%) E2, and 32 (12.7%) E3 on the left side. There was no difference between the right and left side.CONCLUSION:
Anterior disc displacement was not related to the MRI findings of effusion in TMD patients (P>0.05).
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Temporomandibular Joint
/
Magnetic Resonance Imaging
/
Temporomandibular Joint Disorders
/
Joints
Limits:
Female
/
Humans
/
Male
Language:
English
Journal:
Imaging Science in Dentistry
Year:
2013
Type:
Article
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