РЕНТГЕНОЛОГИЧЕСКАЯ ОЦЕНКА СТРУКТУРНО-ТОПОГРАФИЧЕСКИХ ПАРАМЕТРОВ ВИСОЧНО-НИЖНЕЧЕЛЮСТНОГО СУСТАВА ПОСЛЕ ОРТОГНАТИЧЕСКОГО ХИРУРГИЧЕСКОГО ЛЕЧЕНИЯ ЗУБОЧЕЛЮСТНЫХ АНОМАЛИЙ С ЯВЛЕНИЯМИ КОНДИЛОРЕЗОРБЦИИ

Abstract

Purpose: Using the methods of radiation diagnostics, to trace in dynamics the structural and topographic state of the temporomandibular joint (TMJ) before and after orthognathic treatment of patients with air conditioning Material and Methods: A CT analysis of the TMJ condition was carried out before and after orthodontic surgical removal of the dentofacial anomaly (skeletal form) with the effects of Candyline resorption. We used the method of Fadeev R.A. et al. to assess the TMJ parameters: height of the head of the lower jaw; anterior and posterior articular angle; the width of the joint space in the upper, anterior, posterior, mesial and lateral sections; maximum width of the head of the lower jaw; density of cortical and cancellous bones of the head of the lower jaw; height of the articular fossa; the length of the anterior slope of the articular fossa; angle of the anterior slope of the articular fossa; the length of the posterior slope of the articular fossa; angle of the posterior slope of the articular fossa. Results: Comparison of CT parameters of TMJ before and after orthognathic treatment reveals a positive trend in remodeling of the articular process of the lower jaw after surgery, as evidenced by a noticeable increase in the width of the head of the lower jaw with a slight decrease in its height. The absence of compression in the bilaminar zone of the TMJ is recorded due to an increase in the width of the joint space in the posterior section, although the width of the joint space in the upper and anterior sections still does not correspond to normal values. The preservation of a lower density of the cortical and spongy layers of the articular head in comparison with the norm is apparently associated with continued adaptation to the new position of the articular processes and changed functional loads. Conclusion: A comprehensive orthodontic and surgical approach to the elimination of dentoalveolar anomalies is effective and can be recommended in the treatment of patients with skeletal anomalies and condyloresorption, as it provides not only a significant improvement in facial aesthetic parameters, but also has a positive effect on the structural and topographic parameters of the temporomandibular joint.