Morphology of the mandibular fossa and inclination of the articular eminence in patients with internal derangement and in symptom-free volunteers

Sülün, Tonguç; Cemgil, Taylan; Duc, Jean-Marc Pho; Rammelsberg, Peter; Jäger, L.; Gernet, Wolfgang

doi:10.1067/moe.2001.114621

Cited by 67 publications

(51 citation statements)

References 15 publications

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“…It is usually thought that morphological changes owing to function may occur in the eminence structure with advanced age and this situation results in the differentiation of bone contours and flattening of the eminence in the long term. 10,11 In the present study, we observed that the value of eminence inclination was lower in patients aged 16-20 years, reached its highest value in patients aged 21-30 years and decreased in patients aged over 30 years in the control group. By contrast, we could not find any significant association between advanced age and eminence anatomy for either eminence height or inclination in the patient group.…”

Section: Discussionmentioning

confidence: 49%

“…Consequently, it has been noted that studies performed with only a single slice or with transcranial or panoramic radiographic examinations where no slices are made may not depict a true measurement of eminence inclination. 11 The view of the eminence in the central slice is the steepest part of the eminence and it gives the best representation of eminence inclination, 18 which is why we chose the central sagittal slice of the condylar process for measurements.…”

Section: Discussionmentioning

confidence: 99%

“…The first was the best-fit line method that was the angle between Ebf and Frankfort horizontal ( Figure 2); the second was the top-roof line method that was the angle between Etr and Frankfort horizontal ( Figure 3). [7][8][9][10][11][12][13][14][15][16] The eminence height was established by the measurement of the perpendicular Figure 1 Lines and angles used in the study. Ebf, eminence inclination best-fit line; Etr, eminence inclination top-roof line; Eh, eminence height distance between the lowest point of the articular eminence and the highest point of the fossa ( Figure 4).…”

Section: Measurementsmentioning

confidence: 99%

“…The inclination of articular eminence varies among people and it dictates the path of condylar movement as well as the degree of rotation of the disc over the condyle. 1,2 Many methods are used to examine the inclination of articular eminence, such as measurements on dry skulls, [3][4][5] conventional radiography 6 and tomography, 1,7 MRI [8][9][10][11] and CT. [12][13][14] However, CT machines have limitations in dentistry because of their high cost, large footprint and high radiation exposure. Cone beam CT (CBCT) has recently been developed as an alternative to conventional CT for dental and maxillofacial diagnostic osseous tasks.…”

Section: Introductionmentioning

confidence: 99%

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Radiological examination of the articular eminence morphology using cone beam CT

Sumbullu¹,

Çağlayan²,

Akgül³

et al. 2012

Dentomaxillofacial Radiology

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Objective: The purpose of the present study was to investigate the articular eminence inclination and height according to age and gender in patients with temporomandibular joint (TMJ) dysfunction and healthy controls using cone beam CT (CBCT). Methods: The measurements were performed on CBCT records of 52 TMJ dysfunction patients (11 males and 41 females) and 41 control patients (17 males and 24 females). The eminence inclination and height were measured on the CBCT images. Results: The eminence inclination and height values were higher in males than in females in both TMJ dysfunction patient and control groups; however, these differences were not statistically significant (p . 0.05). While no statistically significant differences were found in the eminence inclination and height values between the age groups (p . 0.05) in the TMJ dysfunction patient group, there were statistically significant differences in the control group. The eminence inclination was highest between the ages of 21 and 30 years and showed a decrease after the age of 30 years. Additionally, the eminence inclinations of the control patients were statistically higher than those of the TMJ dysfunction patients. Conclusion: There were no statistically significant differences in eminence inclination and height according to gender. The eminence inclination reaches its highest value between the ages of 21 and 30 years and shows a decrease after the age of 31 years in healthy patients. The eminence inclination was steeper in healthy control patients than in patients with TMJ dysfunction.

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Section: Discussionmentioning

confidence: 49%

Section: Discussionmentioning

confidence: 99%

Section: Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Radiological examination of the articular eminence morphology using cone beam CT

Sumbullu¹,

Çağlayan²,

Akgül³

et al. 2012

Dentomaxillofacial Radiology

View full text Add to dashboard Cite

show abstract

“…Although articular eminence morphology was stated as an aetiological factor in the development of TMJ ID in several articles (Hall et al, 1985;Sato et al, 1999;Sülün et al, 2001), there are authors who did not support these results too (Galante et al, 1995;Ren et al, 1995;Kinniburgh et al, 2000;Kurita et al, 2000a.). Additionally, it is argued that articular eminence flattening can be a result of internal disorders (Kurita et al, 2000b;Emshoff et al, 2003).…”

Section: Introductionmentioning

confidence: 86%

Evaluation of Articular Eminence Morphology and Inclination in TMJ Internal Derangement Patients with MRI

et al. 2012

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SUMMARY: Articular eminence morphology and inclination are reported to be two predisposing factors for the internal derangement (ID). The purpose of this study is to investigate the relationship between the inclination and morphology of the articular eminence and ID. The study included 70 temporomandibular joints with ID in 35 patients: 51 joints had disc displacements with reduction (DDWR) and 19 joints had disc displacements without reduction (DDWOR). All subjects underwent bilateral high resolution magnetic resonance imaging scans which were performed in the sagittal and coronal planes with mouths closed and opened. Articular eminence morphology was characterized as box, sigmoid, flattened, or deformed. Articular eminence inclination was measured at three positions: steep (from 60° to 90°), moderate (from 30° to 60°) and shallow (from 15° to 30°). The images were divided into two; DDWR and DDWOR, and these two criteria were compared. The images of the two groups were compared; while flattened form was occurred with the highest incidence in the DDWOR group, sigmoid form was the most frequent in the DDWR group and articular eminence inclination was found steeper than it was for the DDWOR group. The steepness of the articular eminence may not have a predisposing effect on the development of disc displacements.

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Arthroscopy for temporomandibular disorders

Cardoso

Rigon

Bortoluzzi

et al. 2007

Cochrane Database of Systematic Reviews

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Morphology of the mandibular fossa and inclination of the articular eminence in patients with internal derangement and in symptom-free volunteers

Cited by 67 publications

References 15 publications

Radiological examination of the articular eminence morphology using cone beam CT

Radiological examination of the articular eminence morphology using cone beam CT

Evaluation of Articular Eminence Morphology and Inclination in TMJ Internal Derangement Patients with MRI

Arthroscopy for temporomandibular disorders

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