Biomaterial Database

[Evaluation of disc position in edentulous patients with MRI]. 2011

Yue-hua Ling, and Jun Zhao, and Sun Wang, and Hui-min Shi

Department of Prosthodontics, Shanghai Jiao Tong University School of Medicine, Shanghai, China. lingyuehua1176@126.com

OBJECTIVE To detect the condyle-disc relationship with bilateral temporomandibular joint(TMJ) in edentulous patients. METHODS The study was based on the clinical examination and bilateral MRIs of 11 edentulous patients, the clinical and MRI findings of bilateral TMJ were recorded and the disc position was observed in edentulous patients and the relationship was compared between clinical and MRI findings in those TMJs. RESULTS It was noted that disc displacement was in 45% of the TMJs in edentulous patients. Four TMJ disc displacement in man was found, accounting for 28.6%,whereas disc displacement was found in 6 TMJs of women, accounting for 75%. CONCLUSIONS There is no relationship between disc displacement and clinical manifestations. Disc displacement is more frequent in women than in men. There is potential relationship between missing teeth and internal derangement of TMJ in edentulous patients.

UI	MeSH Term	Description	Entries
D008279	Magnetic Resonance Imaging	Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.	Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297	Male		Males
D004204	Joint Dislocations	Displacement of bones from their normal positions at a joint.	Inferior Dislocation,Joint Subluxations,Luxatio Erecta,Dislocation, Joint,Dislocations, Joint,Inferior Dislocations,Joint Dislocation,Joint Subluxation,Subluxation, Joint,Subluxations, Joint
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013704	Temporomandibular Joint	An articulation between the condyle of the mandible and the articular tubercle of the temporal bone.	TMJ,Joint, Temporomandibular,Joints, Temporomandibular,Temporomandibular Joints
D013705	Temporomandibular Joint Disorders	A variety of conditions affecting the anatomic and functional characteristics of the temporomandibular joint. Factors contributing to the complexity of temporomandibular diseases are its relation to dentition and mastication and the symptomatic effects in other areas which account for referred pain to the joint and the difficulties in applying traditional diagnostic procedures to temporomandibular joint pathology where tissue is rarely obtained and x-rays are often inadequate or nonspecific. Common diseases are developmental abnormalities, trauma, subluxation, luxation, arthritis, and neoplasia. (From Thoma's Oral Pathology, 6th ed, pp577-600)	TMJ Disorders,TMJ Diseases,Temporomandibular Disorders,Temporomandibular Joint Diseases,Disease, TMJ,Disease, Temporomandibular Joint,Diseases, TMJ,Diseases, Temporomandibular Joint,Disorder, TMJ,Disorder, Temporomandibular,Disorder, Temporomandibular Joint,Disorders, TMJ,Disorders, Temporomandibular,Disorders, Temporomandibular Joint,Joint Disease, Temporomandibular,Joint Diseases, Temporomandibular,Joint Disorder, Temporomandibular,Joint Disorders, Temporomandibular,TMJ Disease,TMJ Disorder,Temporomandibular Disorder,Temporomandibular Joint Disease,Temporomandibular Joint Disorder
D019224	Temporomandibular Joint Disc	A plate of fibrous tissue that divides the temporomandibular joint into an upper and lower cavity. The disc is attached to the articular capsule and moves forward with the condyle in free opening and protrusion. (Boucher's Clinical Dental Terminology, 4th ed, p92)	Articular Disk, Temporomandibular,Disk, Temporomandibular Joint,Temporomandibular Joint Disk,Articular Disc, Temporomandibular,Articular Discs, Temporomandibular,Articular Disks, Temporomandibular,Disc, Temporomandibular Articular,Disc, Temporomandibular Joint,Discs, Temporomandibular Articular,Discs, Temporomandibular Joint,Disk, Temporomandibular Articular,Disks, Temporomandibular Articular,Disks, Temporomandibular Joint,Joint Disc, Temporomandibular,Joint Discs, Temporomandibular,Joint Disk, Temporomandibular,Joint Disks, Temporomandibular,Temporomandibular Articular Disc,Temporomandibular Articular Discs,Temporomandibular Articular Disk,Temporomandibular Articular Disks,Temporomandibular Joint Discs,Temporomandibular Joint Disks