Anteriorly displaced temporomandibular joint articular disk

Abstract Objective: To determine the changes in articular disk position and the temporomandibular joint (TMJ) structure in patients who had an asymmetric setback of the mandible performed by a bilateral sagittal split ramus osteotomy with manual positioning of the condyle. Materials and Methods: Twenty-two patients with skeletal Class III malocclusion being treated at Nara Medical University Hospital were evaluated using clinical examination and pre- and postoperative magnetic resonance images of their TMJs. Results: Changes in articular disk position after asymmetric setback surgery were not statistically significant, although a tendency of anterior displacement in the fossa was noted. The anterior and posterior joint spaces did not show significant changes, whereas the condyle head of the deviated or contralateral side tended to be positioned downward. Conclusion: The asymmetric setback of the mandible with intraoperative manual positioning of the condyle does not significantly change the disk position in the fossa.

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Interpositional Arthroplasty for Treatment of ATM Ankylosis

Journal of Surgery Open Access ◽

10.16966/2470-0991.226 ◽

2020 ◽

Vol 6 (6) ◽

Author(s):

Dos Santos FDB ◽

Braz E ◽

Matos MR ◽

Schmitz MO ◽

Tomazi FHS ◽

...

Keyword(s):

Literature Review ◽

Temporomandibular Joint ◽

Temporal Bone ◽

Mouth Opening ◽

Functional Disorders ◽

Condylar Fracture ◽

Temporomandibular Joint Ankylosis ◽

Articular Disk ◽

Image Test ◽

Joint Ankylosis

Introduction: The temporomandibular joint ankylosis is the union between the surface of the temporal bone in its articular portion and the complex made out of articular disk and the condyle. Its etiology is multifactorial being the trauma with condylar fracture most cited. This alteration causes several functional disorders to the patient, among them the main one is the limitation of mouth opening, which causes difficulty eating, speaking, hygiene, speech and others. The diagnosis is made through a clinic image test. The goal is to show a report of case of ankylosis as well as a literature review.

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Assessment of disk displacements of the temporomandibular joint

Brazilian Oral Research ◽

10.1590/s1806-83242005000100012 ◽

2005 ◽

Vol 19 (1) ◽

pp. 63-68 ◽

Cited By ~ 9

Author(s):

Ana Carolina Ramos Mariz ◽

Paulo Sérgio Flores Campos ◽

Viviane Almeida Sarmento ◽

Maria Olívia Dias Gonzalez ◽

Jurandyr Panella ◽

...

Keyword(s):

Temporomandibular Joint ◽

Mouth Opening ◽

Surface Coil ◽

Articular Disk ◽

Significant Difference ◽

Magnetic Field Magnitude ◽

Mri Scans ◽

Males And Females ◽

Magnetic Resonance Imaging Mri ◽

Reciprocal Clicking

The aim of the present research was to evaluate disk displacements (DDs) of the temporomandibular joint (TMJ) among patients referred for magnetic resonance imaging (MRI) scans, and analyze the type and prevalence of DD, gender, age, side distribution, reciprocal clicking, presence of pain, range of mouth opening movement, and dental condition. The sample comprised 113 patients, 12-78 years old (the age average was 36.4 ± 13.5 years), 92 females and 21 males, who underwent MRI between July 2001 and December 2002. A Signa Horizon system (GE) MRI scanner was used at a magnetic field magnitude of 1.5 T with a bilateral radiofrequency surface coil (6.5 x 6.5 cm). Twenty-three (20.4%) patients were found to be normal, whereas 90 (79.7%) presented with DD. Anterior DD (61.1%) was the most common type of articular disk displacement. Males and females were equally affected (no statistically significant difference). We did not find a statistically significant association between DD and increased age. Bilateral DD (70%) was the most common DD occurrence. We found a statistically significant association between reciprocal clicking and anterior DD with reduction. We did not find a statistically significant association between DD and pain, be it articular or facial pain, otalgia or cephalgia. We found a statistically significant association between anterior DD without reduction and mouth opening limitation. With regard to oral condition, we did not find a statistically significant association between DD and loss of teeth.

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