The relationship between temporomandibular joint disk displacement and mandibular asymmetry in skeletal Class III patients

Choi, Hyung-Joo; Kim, Tae Woo; Ahn, Sug-Joon; Lee, Shin-Jae; Donatelli, Richard E.

doi:10.2319/091210-532.1

Cited by 27 publications

(30 citation statements)

References 32 publications

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“…Facial asymmetry (FA) might arise from some pathological conditions that affect TMJ, such as congenital disorders, 14 internal derangements, 15 rheumatoid arthritis 16 and osteoarthritis 17 . For this reason, the relation between TMJ disorders and craniofacial morphology has been extensively studied 18‐23 . FA refers to a state of lack of equity between the right and left side structures, divided by the median sagittal plane, 24 which may impact facial aesthetic and attractiveness.…”

Section: Introductionmentioning

confidence: 99%

Are temporomandibular disorders associated with facial asymmetry? A systematic review and meta‐analysis

Marques

Lima

Oliveira

et al. 2020

Orthod Craniofacial Res

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ObjectiveTo assess scientific evidence of the association between temporomandibular joint (TMJ) disorders and facial asymmetry (FA).MethodsA systematic review was performed in accordance with the PRISMA checklist. A search strategy was developed in electronic databases including MEDLINE, Scopus, Web of Science, Virtual Health Library and Cochrane Library until January 2020. Eligibility criteria included observational studies that investigated the occurrence of FA among patients with and without signs and symptoms of TMJ disorders. Risk of bias of individual studies was analysed after study selection and data collection processes according to Fowkes and Fulton guidelines. Four meta‐analyses (MA) were performed to evaluate the association between TMJ disorders and linear/angular menton deviation, subgrouping the studies into unilateral and bilateral cases. The evidence was certainty‐tested using the GRADE approach.ResultsThe search retrieved 2371 studies, 31 of which were eligible for full‐text reading. Seven cross‐sectional clinical studies met the eligibility criteria and were included in the qualitative synthesis, comprising a total of 621 subjects (345 with TMJ disease and 276 in control group), four of which were classified as being methodologically sound. Five studies were eligible for quantitative synthesis. Linear and angular menton deviation was greater in individuals with unilateral TMJ disorders than controls (MD = 2.41 [0.33, 4.50] P = .02; I2 = 86% and MD = 2.68 [0.99, 4.38] P = .002; I2 = 0%, respectively).ConclusionsDespite the low certainty in evidence, the present study indicated that unilateral TMJ disorders are associated with FA. However, longitudinal studies with greater certainty of evidence should be conducted to achieve a stronger estimate of this association.

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Section: Introductionmentioning

confidence: 99%

Are temporomandibular disorders associated with facial asymmetry? A systematic review and meta‐analysis

Marques

Lima

Oliveira

et al. 2020

Orthod Craniofacial Res

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“…Unilateral TMJ ID displays a deviation of mention to the affected side [ 28 , 29 , 31 ]. And reverse examination study also demonstrated positive correlations between short ramus and condyle as well as deviated mention being associated with TMJ disc displacement and derangement [ 32 , 33 ]. Thus, the severity of TMD and disc displacement can lead to mandibular hypoplasia or facial asymmetry [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Orthognathic surgery and temporomandibular joint symptoms

Jung

Kim

Park

et al. 2015

Maxillofac Plast Reconstr Surg

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The aim of this article is to review temporomandibular joint symptoms as well as the effects of orthognathic surgery(OGS) on temporomandibular joint(TMJ). The causes of temporomandibular joint disease(TMD) are multifactorial, and the symptoms of TMD manifest as a limited range of motion of mandible, pain in masticatory muscles and TMJ, Joint noise (clicking, popping, or crepitus), myofascial pain, and other functional limitations. Treatment must be started based on the proper diagnosis, and almost symptoms could be subsided by reversible options. Minimally invasive options and open arthroplasty are also available following reversible treatment when indicated.TMD manifesting in a variety of symptoms, also can apply abnormal stress to mandibular condyles and affect its growth pattern of mandible. Thus, adaptive developmental changes on mandibular condyles and post-developmental degenerative changes of mandibular condyles can create alteration on facial skeleton and occlusion. The changes of facial skeleton in DFD patients following OGS have an impact on TMJ, masticatory musculature, and surrounding soft tissues, and the changes of TMJ symptoms. Maxillofacial surgeons must remind that any surgical procedures involving mandibular osteotomy can directly affect TMJ symptoms, thus pre-existing TMJ symptoms and diagnoses should be considered prior to treatment planning and OGS.

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“…6 Concurrently, temporomandibular disorders have been demonstrated to induce mandibular asymmetry. [7][8][9][10] A study conducted by Emshoff et al, 11 has shown that TMJ disc displacements without reduction and osteoarthrosis are important determinants of mandibular backward positioning. Disc displacement might induce skeletal changes in facial morphology.…”

Section: Introductionmentioning

confidence: 99%

Posteroanterior cephalometric changes in subjects with temporomandibular joint disorders

Almășan

Băciuţ²,

Hedeșiu³

et al. 2013

Dentomaxillofacial Radiology

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Objectives: The aim of the study was to establish the changes in posteroanterior cephalometric variables in subjects with temporomandibular joint disorders (TMDs). Methods: Posteroanterior cephalograms of 61 subjects (age range 16-36.6 years, standard deviation 4.88 years) were used to determine cephalometric differences. Subjects were classified according to the Research Diagnostic Criteria for Temporomandibular Joint Disorders into three groups: unilateral TMD, bilateral TMD and no TMD. 14 linear and angular measurements were assessed on the posteroanterior cephalogram. For assessing facial asymmetry, the asymmetry index for bilateral measurements was calculated between the right and the left side. In cases with unilateral TMD, the asymmetry index was calculated using the difference between the unaffected and affected side. The differences among multiple groups were analysed using the one-way analysis of variance test and Scheffé post hoc test. Results: 47 subjects were females (77%) and 14 were males (23%). 19 subjects had unilateral TMDs and 16 subjects had bilateral TMDs. The asymmetry index of the distance from the horizontal plane to the antegonion was higher in subjects with unilateral TMD than in patients with bilateral or no TMD (p , 0.05). Also, the asymmetry index of the distances from the vertical plane to the condyle (p 5 0.05), gonion (Go) (p 5 0.0004), antegonion (p 5 0.002) and chin (Ch) (p 5 0.02) was higher in subjects with unilateral TMDs. The asymmetry index of the O point-Go-Go9 and O point-Ch-Ch9 angles differed significantly in subjects with unilateral TMDs (p , 0.05). Conclusions: Unilateral TMDs are associated with changes in posteroanterior cephalometric measurements. The assessment of posteroanterior cephalometric variables could be used as a key factor for evaluating the presence of TMDs.

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The relationship between temporomandibular joint disk displacement and mandibular asymmetry in skeletal Class III patients

Cited by 27 publications

References 32 publications

Are temporomandibular disorders associated with facial asymmetry? A systematic review and meta‐analysis

Are temporomandibular disorders associated with facial asymmetry? A systematic review and meta‐analysis

Orthognathic surgery and temporomandibular joint symptoms

Posteroanterior cephalometric changes in subjects with temporomandibular joint disorders

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