Related Experiment Video

Updated: Jul 5, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
07:26

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

MRI findings of temporomandibular joints with disk perforation

Ami Kuribayashi1, Kiyoshi Okochi, Kaoru Kobayashi

  • 1Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. ami8orad@tmd.ac.jp

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
|May 28, 2008
PubMed
Abstract

Insights

Magnetic resonance imaging (MRI) reveals that temporomandibular joint (TMJ) disk perforation is associated with disk deformity and obscured temporal posterior attachment (TPA). These findings help differentiate TMJ disk perforation from other conditions.

Area of Science:

  • Radiology
  • Orthodontics
  • Oral and Maxillofacial Surgery

Background:

  • Temporomandibular joint (TMJ) disk perforation is a significant pathological condition.
  • Accurate diagnosis of TMJ disk perforation is crucial for effective treatment planning.

Purpose of the Study:

  • To identify characteristic magnetic resonance imaging (MRI) findings associated with TMJ disk perforation.
  • To compare MRI findings in TMJs with disk perforation, anterior disk displacement, and asymptomatic controls.

Main Methods:

  • MRI scans of 31 TMJs with disk perforation, 37 with anterior disk displacement, and 22 asymptomatic TMJs were analyzed.
  • TMJ arthrography was used to confirm disk perforation.
  • MRI findings including disk deformity, displacement, bone changes, effusion, and temporal posterior attachment (TPA) visualization were evaluated and compared across groups.

Main Results:

  • TMJs with disk perforation showed significantly higher incidences of anterior disk displacement and condylar bone changes compared to asymptomatic controls.
  • Disk deformity and TPA obscurity were significantly more frequent in the disk perforation group.
  • These findings suggest specific MRI indicators for TMJ disk perforation.

Conclusions:

  • Obscurity of the TPA is a characteristic MRI finding in TMJs with disk perforation, alongside disk deformity.
  • MRI can effectively identify key features indicative of TMJ disk perforation.

More Related Videos

Ovine Lumbar Intervertebral Disc Degeneration Model Utilizing a Lateral Retroperitoneal Drill Bit Injury07:25

Ovine Lumbar Intervertebral Disc Degeneration Model Utilizing a Lateral Retroperitoneal Drill Bit Injury

Published on: May 25, 2017

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice06:37

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice

Published on: September 13, 2024

Related Concept Videos

Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Degenerative Disc Disease I: Introduction01:27

Degenerative Disc Disease I: Introduction

Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...