Morphometric features of the temporomandibular joints according to MR studies in adult patients with dislocations of the articular discs and malocclusion of the anterior teeth

Beinarovich S.V.; Filimonova O.I.

doi:https://doi.org/10.17116/stomat20209906144

Beinarovich S.V.

South Ural State Medical University of the Ministry of Health of the Russian Federation

Filimonova O.I.

South Ural State Medical University of the Ministry of Health of the Russian Federation

Morphometric features of the temporomandibular joints according to MR studies in adult patients with dislocations of the articular discs and malocclusion of the anterior teeth

Authors:

Beinarovich S.V., Filimonova O.I.

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Journal: Stomatology. 2020;99(6): 44‑47

DOI: 10.17116/stomat20209906144

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To cite this article:

Beinarovich SV, Filimonova OI. Morphometric features of the temporomandibular joints according to MR studies in adult patients with dislocations of the articular discs and malocclusion of the anterior teeth. Stomatology. 2020;99(6):44‑47. (In Russ.)
https://doi.org/10.17116/stomat20209906144

Подписка 2026 Стоматология (Stomatology)

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THE PURPOSE OF THE STUDY:

To study the morphological features of the temporomandibular joints (TMJ) according to MR studies in adult patients with impaired occlusion of the anterior teeth and dislocations of the articular discs.

MATERIAL AND METHODS

The clinical study included 51 patients aged 17 to 47 years (mean age 28.12±7.44 years): 14 men and 37 women. On the basis of a clinical examination and MR findings of TMJ in 30 patients (mean age 26.77±7.48 years; 8 men and 22 women), TMJ dysfunction in the form of dislocation of articular discs was confirmed. In 21 patients (mean age 30.05±7.12; 15 women, 6 men), TMJ dysfunction without dislocation of articular discs was confirmed. The patients measured the value of vertical incisive overlap (overbite). Analyzing data from MR studies of TMJ, we measured the following values of both TMJs of each patient: the depth and transverse size of the articular fossa, the height of the articular tubercles and the transverse size of the head of the lower jaw.

RESULTS

The examined patients with joint dislocations of TMJ had morphological features: statistically significantly deeper and narrower articular fossae, higher articular tubercles and narrower in the sagittal plane of the head of the lower jaw compared to TMJ of patients with dysfunction without dislocation of articular disks. In addition, in patients with articular disk dislocations, a statistically significant (<0.05) increase in vertical incisal overlap was noted.

CONCLUSION

TMJ in patients with dysfunction in the form of dislocations of articular discs had morphological features that allowed them to be classified as type 3.

Keywords:

TMJ dysfunction

articular disc dislocation

magnetic resonance study of TMJ

Authors:

Beinarovich S.V.

South Ural State Medical University of the Ministry of Health of the Russian Federation

Filimonova O.I.

South Ural State Medical University of the Ministry of Health of the Russian Federation

Received:

21.10.2019

Accepted:

17.01.2020

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