Associations between the articular eminence inclination and condylar bone changes, condylar movements, and condyle and fossa shapes

Çağlayan, Fatma; Sümbüllü, Muhammed Akif; Akgül, Hayati Murat

doi:10.1007/s11282-013-0149-x

Cited by 29 publications

(35 citation statements)

References 26 publications

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“…Pontual et al and Koyama et al evaluated the images of patients with clinical symptoms of TMJ and showed the altered condyle morphology and osseous bone changes (9,14). In a previous study, Caglayan et al (16) observed a significant difference between the condyle and fossa shapes of TMD and control groups. Round condyle shape was more prominent in TMD groups whereas oval in the control group (16).…”

Section: Discussionmentioning

confidence: 87%

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Cone Beam CT Evaluations of Condyle Shape and Age-Related Associations of Articular Eminence Morphology in Female TMD Patients

Akmansoy¹,

Yalçınkaya²

2019

ERD

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Aim:The aim of this study was to assess condyle shape and the relationship between age-related associations and articular eminence (AE) inclination in a group of female patients with temporomandibular disorder (TMD).Methods: CBCT images of 64 temporomandibular joints (TMJs) of 32 female TMD patients (18-45-year-old) were evaluated sagittally and coronally. Condyle shape was assessed visually and the inclination of AE was analyzed using with bestfit and top-roof methods. AE heights were also measured. The patients were grouped into two age groups: 18 to 30 -and 31 to 45-year-old. Data were statistically analyzed with SPSS software using Mann-Whitney-U test.Results: The most frequently observed condyle shape was flattened (39,1 %) in sagittal plane and triangular (43,8 %) in coronal plane. Triangular condyle shape was seen in 31.3% of condyles on coronal sections. No statistically significant differences were seen in two different age groups comparing AE inclination and height.Conclusion: Triangular and flattened condyles were the most frequent condyle shape in female TMD patients. Although AE inclination was highest between the ages of 18-30, there was no statistical significance.

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Section: Discussionmentioning

confidence: 87%

“…The coronal plane was set parallel to the long axis of the condyle and the sagittal plane was set perpendicular to the coronal. The condyles were classified as "round", "oval" "triangular" and "flattened" both in the coronal and sagittal plane as described in previous studies (5,16).…”

Section: Methodsmentioning

confidence: 99%

Cone Beam CT Evaluations of Condyle Shape and Age-Related Associations of Articular Eminence Morphology in Female TMD Patients

Akmansoy¹,

Yalçınkaya²

2019

ERD

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“…2,9,19,28,29,[31][32][33][34][35][36][37][38]27 Katzberg and Westesson, 1 and Zabarovic et al 39 that adaptive changes might occur in the eminence and that flattening in the AE might result from this adaptation. 2,9,19,28,29,[31][32][33][34][35][36][37][38]27 Katzberg and Westesson, 1 and Zabarovic et al 39 that adaptive changes might occur in the eminence and that flattening in the AE might result from this adaptation.…”

Section: Discussionmentioning

confidence: 99%

“…Many studies in the literature used skull measurement, direct radiography, panoramic radiography, computed tomography or magnetic resonance imaging to detect the AEI. 2,9,19,28,29,[31][32][33][34][35][36][37][38] Angel, 27 Katzberg and Westesson, 1 and Zabarovic et al 39 for dentate patients. The mean AEI values in this study are consistent with those of other studies in the literature 1,27,39,40 and previous studies on this subject in the Turkish population.…”

Section: Discussionmentioning

confidence: 99%

“…The mean AEI values in this study are consistent with those of other studies in the literature 1,27,39,40 and previous studies on this subject in the Turkish population. 37,38 Although some researchers have argued that edentulousness results in increased remodelling of the glenoid fossa, degeneration and several structural changes in the TMJ, 4,6,[8][9][10][11][12][13] others have argued that there is no relationship between edentulousness and degenerative changes in the TMJ. 2,39,41,42 Similar studies to ours have evaluated the relationship between edentulousness and AEI.…”

Section: Discussionmentioning

confidence: 99%

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A radiological evaluation of the effects of edentulousness on the temporomandibular joint

Erzurumlu

Çelenk

2019

J of Oral Rehabilitation

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The temporomandibular joint (TMJ) consists of a pair of symmetrical, mobile, synovial and diarthrodial joints located at the base of the head between the temporal bone and mandibular condyle.Separated into upper and lower joint spaces by a fibrous disc, 1 the TMJ allows the jaw to move in several directions and transfers the forces and loads resulting from chewing to the base of the head. 2 Recent developments in the imaging technology enabled 3D static and dynamic analysis of TMJ, thus helped better understand its biomechanics. Consequently, it is understood that mandibular morphology has wide intra-and interindividual variations.This variability depends on mutual interaction of morphology and functionality. 3 Abstract Background: The articular eminence of the temporomandibular joint is an anatomical structure exposed to functional loads resulting from masticatory forces. Tooth loss may change the biomechanics of the masticator system, and the articular eminence can be affected by this change.Objective: The aim of this study is to examine the relationship between the edentulousness and the articular eminence inclination of the temporomandibular joint. Methods:The articular eminence inclination was measured in panoramic radiographs in the right and left temporomandibular joint on a total of 100 patients (50 dentate and 50 edentulous). The articular eminence inclination of dentate and edentulous patients was compared, as well as the influence of gender and duration of edentulousness. Results:The mean articular eminence inclination value in the dentate group (42.6 ± 4.3 0 ) was higher than that of the edentulous group (35.1 ± 4.7 0 , P < .001).Although there was no significant difference between males and females in the dentate group with regard to articular eminence inclination (42.0 ± 4.7 0 and 42.9 ± 4.1 0 , respectively, P = .373), in the edentulous group, males had higher values as compared to females (37.1 ± 4.7 0 and 34.2 ± 4.5 0 , respectively, P = .003). Finally, the duration of edentulousness and the degrees of articular eminence inclination values did not show positive correlations (P = .782). Conclusion:According to the results of this study, we found that edentulous patients had lower articular eminence inclination than dentate patients, and it was more prominent in female than male patients. K E Y W O R D Sarticular eminence, edentulousness, eminence inclination, panoramic radiography, temporomandibular joint, tooth loss How to cite this article: Unal Erzurumlu Z, Celenk P. A radiological evaluation of the effects of edentulousness on the temporomandibular joint.

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Anatomical consideration of ultrasonography‐guided intraoral injection for temporal tendinitis

Kim,

Bae,

Lee

et al. 2023

Clinical Anatomy

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Temporal tendinitis is characterized by acute inflammation often resulting from mechanical stress, such as repetitive jaw movements associated with jaw opening and closing and teeth clenching. Treatment for temporal tendinitis typically involves the administration of local anesthetic or corticosteroid injections. However, the complex anatomical structure of the coronoid process, to which the temporalis tendon attaches, located deep within the zygomatic arch, poses challenges for accurate injections. In this study, we aimed to establish guidelines for the safe and effective treatment of temporal tendinitis by using intraoral ultrasonography (US) to identify the anatomical structures surrounding the temporalis tendon and coronoid process. US was performed using an intraoral transducer on 58 volunteers without temporomandibular joint disease. The procedure involved placing the transducer below the occlusal plane of the maxillary second molar. Measurements were taken for the horizontal distance from the anterior border of the coronoid process, observed at the midpoint (MP) of the US images, and the depth of the coronoid process and temporalis muscle from the oral mucosa. The anterior border of the coronoid process was visualized on all US images and classified into three observed patterns at the MP: type A (anterior to the MP, 56.2%), type B (at the MP, 16.1%), and type C (posterior to the MP, 27.7%). The temporalis muscle was located at a mean depth of 3.12 ± 0.68 mm from the oral mucosa. The maxillary second molar is an intraoral landmark for visualizing the anterior border of the coronoid process. The new location information obtained using intraoral US could help identify the safest and most effective injection sites for the treatment of temporal tendinitis.

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Associations between the articular eminence inclination and condylar bone changes, condylar movements, and condyle and fossa shapes

Cited by 29 publications

References 26 publications

Cone Beam CT Evaluations of Condyle Shape and Age-Related Associations of Articular Eminence Morphology in Female TMD Patients

Cone Beam CT Evaluations of Condyle Shape and Age-Related Associations of Articular Eminence Morphology in Female TMD Patients

A radiological evaluation of the effects of edentulousness on the temporomandibular joint

Anatomical consideration of ultrasonography‐guided intraoral injection for temporal tendinitis

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