Evaluation of missing-tooth effect on articular eminence inclination of temporomandibular joint

Chiang, Meng-Ta; Li, Tsung-I; Yeh, Hsiao-Wen; Su, Ching‐Hua; Chiu, Kuo-Chou; Chung, Ming-Pang; Huang, Ren‐Yeong; Shieh, Yi‐Shing

doi:10.1016/j.jds.2015.02.001

Cited by 18 publications

(26 citation statements)

References 18 publications

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“…When the patient is positioned correctly within the device, the bone components of the TMJ are clearly visible in the lateral oblique plane. 9,15 Tronje et al 24 in the AE's structure with age. 17,18 Gilboa et al 19 showed that there was a correlation between articular morphology and panoramic radiographic images, and the sagittal inclination of the articular eminence was consistently replicated.…”

Section: Discussionmentioning

confidence: 99%

“…[20][21][22][23] There are some studies that used panoramic radiography for measurement of the AEI. 9,15 Tronje et al 24 stated that angular measurements can be performed on correctly exposed panoramic films, and the values obtained Angle 27 and Wu et al 28 reported that the AEI increases with age, and other studies have reported an increase in morphological changes in the AE's structure with age. These studies also reported that this increase in morphological changes resulted in the flattening of eminence in the long term.…”

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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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

Erzurumlu

Çelenk

2019

J of Oral Rehabilitation

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“…Similarly, Hinton 9 described a decreasing depth of the glenoid fossa and flattening of the articular eminence in skulls with lost molars as compared to those with retained molars of the same 'functional age', determined by the extent of tooth wear. Chiang et al 10 examined patients with unilateral posterior edentulism and found a trend towards decreased inclination angle on the missing side in comparison with the non-missing side and no association between either age or gender and articular eminence angulation. Moreover, Levartovsky et al 11 showed that reduced molar support is the key etiological factor of the morphological osseous changes of the mandibular condyles and that the influence of age on those changes is negligible.…”

Section: Discussionmentioning

confidence: 99%

Flattening of the articular eminence is associated with the loss of occlusal support: radiological study

Oruba

Malisz

Sendek

et al. 2019

Australian Dental Journal

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Background Degenerative changes in the temporomandibular joint might be associated with ageing and/or with the loss of occlusal support. Objective The aim of the study was to evaluate whether the inclination of the posterior slope of the articular eminence changes in association with: (i) ageing in patients with maintained occlusal support zones (OSZs); and (ii) the loss of OSZs in elders. Methods In this retrospective radiological study, selected orthopantomograms were allocated into the following groups: I—age 18–35, maintained OSZs, II—age 36–60, maintained OSZs, III—age >60, at least one OSZ per side maintained, IV—age >60, loss of all OSZs. The inclination of the articular eminence was measured relative to the Frankfort plane. Results The mean values of the inclination of the slope of the articular eminence amounted 34.05° ± 5.17°, 36.68° ± 5.65°, 34.86° ± 6.26° and 26.31° ± 5.12° for group I, II, III and IV respectively. There were no significant differences between the groups I to III. Group IV differed significantly from each of the previous groups. Conclusions Flattening of the articular eminence is associated with the loss of OSZs rather than ageing.

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“…The symmetry equality between the missing and the non-missing side joint was 1.89%. This value was higher (3%) in the female group with the average of 52 years old in the range of age between 23 to 84 years old [1]. Meanwhile, based on data survey of Riset Kesehatan Dasar (RisKesDas) in 2007 the dental care condition of dentures user in Indonesia was around 4,5% [2].…”

Section: Introductionmentioning

confidence: 99%

The Correlation Between Unilateral Posterior Teeth and Articular Inclination of the Temporomandibular Using the Panoramic Radiograph

Indriastuti¹,

Dewiyani²,

Sumawinata³

et al. 2019

Proceedings of the International Conference on Environmental Awareness for Sustainable Development in Conjunction With Internat

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Alteration of Temporomandibular joint is part of the stogmatonagti. The prevalence of joint disorders is 10-70% most cases have lost mandibular molars. This research will the alteration of articular eminence inclination on temporomandibular joint between patients that loss the unilateral mandibular posterior teeth and patients with mandibular posterior teeth using panoramic x-ray. Analytic research cross-sectional study design. Data analysis was performed using an independent T-test with p-value = 0.05. T will be count as the average deviation of EA (eminensia artikularis) angle with sig value (P-Value) of 0,009 less, out of 0,05 or α

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Evaluation of missing-tooth effect on articular eminence inclination of temporomandibular joint

Cited by 18 publications

References 18 publications

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

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

Flattening of the articular eminence is associated with the loss of occlusal support: radiological study

The Correlation Between Unilateral Posterior Teeth and Articular Inclination of the Temporomandibular Using the Panoramic Radiograph

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