Evaluation of Temporomandibular Joint Disk Displacement in Asymptomatic Volunteers Using Magnetic Resonance Imaging

Takashi Uchida; Osamu Komiyama; Yasuhiro Okamoto; Takashi Iida; Masanobu Wakami; Takanori Ito

doi:10.5466/ijoms.14.21

Original Articles

Evaluation of Temporomandibular Joint Disk Displacement in Asymptomatic Volunteers Using Magnetic Resonance Imaging

Takashi Uchida, Osamu Komiyama, Yasuhiro Okamoto, Takashi Iida, Masanobu Wakami, Takanori Ito

Author information

Takashi Uchida
Departments of Oral Diagnosis, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Research Institute of Oral Science, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Osamu Komiyama
Departments of Oral Function and Rehabilitation, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Research Institute of Oral Science, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Yasuhiro Okamoto
Departments of Oral Diagnosis, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Research Institute of Oral Science, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Takashi Iida
Departments of Oral Function and Rehabilitation, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Research Institute of Oral Science, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Masanobu Wakami
Departments of Crown Bridge Prosthodontics, Nihon University,School of Dentistry at Matsudo, Chiba 271-8587, Japan
Research Institute of Oral Science, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Takanori Ito
Departments of Oral Diagnosis, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan
Research Institute of Oral Science, Nihon University, School of Dentistry at Matsudo, Chiba 271-8587, Japan

Keywords: temporomandibular joint, magnetic resonance imaging, asymptomatic volunteers, disk displacement

JOURNAL FREE ACCESS

2015 Volume 14 Issue 1 Pages 21-27

DOI https://doi.org/10.5466/ijoms.14.21

Details

Abstract

Objective: The purpose of this study was to explore magnetic resonance imaging (MRI) findings of bilateral temporomandibular joints with no signs or symptoms of temporomandibular dysfunction to ascertain how disk displacement develops in both joints.
Study design: Subjects comprised 54 asymptomatic volunteers (38 males, 16 females; average age 21.2±2.8 years). All 108 temporomandibular joints were analyzed by MRI. Results: Unilateral or bilateral disk displacement was present in 37% of subjects; 25 of 108 joints were classified as partial disk displacement (PDD) and 5 of 108 joints were classified as complete disk displacement (CDD). The numbers of subjects with unilateral and bilateral disk displacement were the same. In cases of bilateral disk displacement, the condition of displacement was likely to match on both sides.
Conclusions: CDD may occur without temporomandibular dysfunction, and when disk displacement is bilateral, the condition of both disk displacements is often comparable.

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