Changes in the TMJ disc-condyle-fossa relationship following functional treatment of skeletal Class II Division 1 malocclusion: A magnetic resonance imaging study

Arat, Z. Mirzen; Gökalp, Hatice; Erdem, Dilek; Erden, İlhan

doi:10.1067/mod.2001.110245

Cited by 33 publications

(24 citation statements)

References 15 publications

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“…Yet others, like Baltromejus et al (5) and Güner et al (2), used cephalometric tracing. Many others, such as Arat et al (25), preferred to use several methods to increase the accuracy of the results.…”

Section: Discussionmentioning

confidence: 99%

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: Discussionmentioning

confidence: 99%

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

Ivorra-Carbonell¹,

Montiel-Company²,

Almerich‐Silla³

et al. 2016

Med Oral

View full text Add to dashboard Cite

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“…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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“…7,12 The space in the TMJ joint, which includes the disk, is located between the fossa and the condyle. The joint space reflected the position of the disk and the condyle directly.…”

Section: Discussionmentioning

confidence: 99%

“…It is also of limited value if there is a need to remove odontogenic lesions or teeth. 7 The aim of this study was to present a functional surgery to remove root fragments displaced into maxillary sinus using piezosurgery, associated with the use of endoscopy if necessary, and maintain the integrity of the lateral wall of the maxillary sinus using a replaceable bony window after their removal if the bone lid was large, which not only preserved the alveolar bone but also had minimal complications.…”

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confidence: 99%

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Changes in the Temporomandibular Joint Space After Functional Treatment of Disk Displacement With Reduction

Xie²,

Chen³

et al. 2015

Journal of Craniofacial Surgery

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This study aimed to evaluate the changes of temporomandibularjoint (TMJ) space in the treatment of disk displacement with reduction (DDWR) for class II cases. Forty-two adolescent patients with unilateral DDWR, who were successfully treated by functional appliance, were selected in this study. Magnetic resonance imaging scans were used before treatment (T1), at the start of treatment (T2), and after functional treatment (T3). Compared with the normal joint, the change of joint space index was calculated. The anterior, posterior, and superior joint spaces were analyzed on the largest sagittal plane among T1, T2, and T3. Student's t-test was used for statistical analysis. The mean treatment period was 10 months (6-16 mo). Functional appliance was effective in eliminating pain and clicking. During the phase of T1, the value of the joint space index of DDWR was significantly higher than that of the control (P < 0.05). There was a significant decrease in the anterior space and an increase in the postsuperior space at T2 (P < 0.01), and then the contrary changes occurred at T3. However, there was a significant increase in the postsuperior space and no significant decrease in the anterior space when T1 and T3 were compared. This study indicates that the TMJ space is well distributed after disk repositioning with functional treatment of DDWR. It is also suggested that the adaptive remodeling in TMJ occurs via functional treatment.

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Changes in the TMJ disc-condyle-fossa relationship following functional treatment of skeletal Class II Division 1 malocclusion: A magnetic resonance imaging study

Cited by 33 publications

References 15 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

Changes in the Temporomandibular Joint Space After Functional Treatment of Disk Displacement With Reduction

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