Temporomandibular joint adaptations following two‐phase therapy: an MRI study

Wadhawan, Neeraj; Kumar, Shailesh; Kharbanda, OP; Duggal, Ritu; Sharma, Radha

doi:10.1111/j.1601-6343.2008.00436.x

Cited by 36 publications

(48 citation statements)

References 85 publications

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“…According to Wadhawan et al (15), the anterior repositioning of the condyle in the glenoid fossa caused by functional appliances results in stretching of the retrodiscal tissue that could lead to changes in the shape of the disk or its posterior displacement, which agrees with the study by Chavan et al (16). However, Aidar et al (1) found no significant changes in disk position after treatment with the Herbst appliance.…”

Section: Discussionsupporting

confidence: 79%

Impact of functional mandibular advancement appliances on the temporomandibular joint - a systematic review

Ivorra-Carbonell¹,

Montiel-Company²,

Almerich‐Silla³

et al. 2016

Med Oral

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BackgroundAlthough many orthodontists have no doubts about the effectiveness of functional appliances for mandibular advancement, the impact on the temporomandibular joint (TMJ) is still in dispute. The objective of this systematic review is to examine the main effects on the TMJ of using functional appliances, both in healthy patients and in patients with a pre-existing disorder.Material and MethodsA systematic review of the literature was conducted in accordance with the PRISMA guidelines. Only systematic reviews, meta-analyses, randomized clinical trials (RCTs), case-control studies and cohort studies were included. A detailed language-independent electronic search was conducted in the Pubmed, Scopus, Cochrane Library and Embase databases. All studies published between 2000 and 2015 were included.ResultsA total of 401 articles were identified. Of these, 159 were duplicates and were excluded. On reading the title and abstract, 213 articles were excluded because they did not answer the research question, leaving a total of 29 articles. These articles were read and assessed. Following critical reading of the full text, eight articles were excluded: seven because they were considered of low quality and one because it published redundant data. As a result, 21 articles were included.ConclusionsAfter treatment with functional appliances, the condyle was found to be in a more advanced position, with remodelling of the condyle and adaptation of the morphology of the glenoid fossa. No significant adverse effects on the TMJ were observed in healthy patients and the appliances could improve joints that initially presented forward dislocation of the disk. Key words:Temporomandibular joint, TMJ, orthodontic appliances, functional, mandibular advancement, herbst appliance, bionator.

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Section: Discussionsupporting

confidence: 79%

Impact of functional mandibular advancement appliances on the temporomandibular joint - a systematic review

Ivorra-Carbonell¹,

Montiel-Company²,

Almerich‐Silla³

et al. 2016

Med Oral

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show abstract

“…In orthodontic literature, temporomandibular joint (TMJ) adaptations following functional therapy have been visualized by various techniques like cephalograms, 1-3 panoramic radiographs, 4,5 computed tomography, 6,7 and magnetic resonance imaging. [8][9][10] However, there are many limitations to image acquisition of the TMJ using conventional techniques.…”

Section: Introductionmentioning

confidence: 99%

Condylar response to functional therapy with Twin-Block as shown by cone-beam computed tomography

Yıldırım

Karaçay

Erkan

2014

The Angle Orthodontist

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Objective: To evaluate the condylar changes through cone-beam computed tomography (CBCT) images in patients treated with Twin-Block functional appliance. Materials and Methods: In this retrospective study, CBCT images of 30 patients who were treated with the Twin-Block appliance were used. Mandible was segmented and pretreatment and posttreatment (T0 and T1) condylar volume was compared. The angle between sella-nasion-Point A (SNA), angle between sella-nasion-Point B (SNB), angle between Point A-nasion-Point B (ANB), midfacial length (Co-A), mandibular length (Co-Gn), and the distances from right condylion to left condylion (Co R -Co L ) were also measured on three-dimensional images. Differences were analyzed with Wilcoxon signed rank tests, and Mann-Whitney U-tests were used to compare the scores of male and female participants. Significance was set at P , .05. Results: In this study, a decrease in SNA and ANB (P , .05 and P , .01, respectively) and an increase in SNB (P , .01) were found. Additionally, Co R -Co L , Co-Gn, and condylar volume increased at both the left and right sides (P , .01). However, increase at Co-A was not statistically significant (P . .05). Comparison of differences by sex was not statistically significant for all measurements (P . .05). Conclusion: Twin-Block appliance increases condylar volume, mandibular length, and intercondylar distance by stimulating growth of condyle in an upward and backward direction.

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“…However, the literature provides limited data regarding the importance of the position of the MF and its interrelation with the craniofacial structures in the development of malocclusion. On the other hand, the application of orthopedic or orthodontics therapies has been described to produce some effects in the position or morphology of the MF [4,11,26,31,33,37,44,47,49,50,52].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the position of the mandibular fossa using 3D CBCT in different skeletal frames in human caucasic skulls

Basili

Costa

Sasaguri

et al. 2009

J. Stomat. Occ. Med.

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Temporomandibular joint adaptations following two‐phase therapy: an MRI study

Abstract: Forward relocation of the C-GF complex seems to be one of the mechanisms of action of functional appliances, while the internal anatomic arrangement within the temporomandibular joint (TMJ) complex normalizes to its pre-treatment position.

Cited by 36 publications

References 85 publications

Impact of functional mandibular advancement appliances on the temporomandibular joint - a systematic review

Impact of functional mandibular advancement appliances on the temporomandibular joint - a systematic review

Condylar response to functional therapy with Twin-Block as shown by cone-beam computed tomography

Comparison of the position of the mandibular fossa using 3D CBCT in different skeletal frames in human caucasic skulls

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