ABSTRACT
Objectives
: This study compared magnetic resonance image (MRI) findings and fractal dimension
(FD) values, as calculated with fractal analysis, in the temporomandibular joints
(TMJs) of study patients with disk perforation vs control patients.
Study Design
: Of 75 TMJs examined with MRI for characteristics of the disk and condyle, 45 were
included in the study group and 30 in the control group. MRI findings and FD values
were compared for significance of differences between the groups. The frequency of
subclassifications was analyzed for differences between the two forms of disk configuration
and grades of effusion. Mean FD values were analyzed for differences among subclassifications
of MRI findings and between groups.
Results
: MRI variables of disk configuration, internal disk status, condylar morphology, and
effusion differed significantly between study and control patients (P = .001). Joints with perforated disks had a large percentage of normal disk-condyle
relationships (73.3%, P = .001). Significant differences were discovered between biconcave (normal) and flattened
disk configuration in the frequencies of internal disk status and condylar morphology.
FD values of all patients varied significantly among the subclassifications of disk
configuration, internal disk status, and effusion. Mean FD values were significantly
lower in the study group with perforated disks (1.07) compared to the control group
(1.20, P = .001).
Conclusions
: MRI variables and FD can be useful in investigating intra-articular TMJ status.
Keywords
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Article info
Publication history
Accepted:
January 1,
2023
Received in revised form:
December 23,
2022
Received:
July 29,
2022
Publication stage
In Press Journal Pre-ProofIdentification
Copyright
© 2023 Elsevier Inc. All rights reserved.
