The aim: To propose the algorithm of complex rehabilitation of patients with iatrogenic occlusal disorders combined with vertical malocclusion and prove its efficiency. Materials and methods: 55 patients with iatrogenic occlusal disorders combined with vertical malocclusion aged from 23 to 47 years old (mean age 36.1±5.2 years) including 32 females and 23 males were examined at Dental Medical Center of Bogomolets National Medical University during 2019-2021 years. All patients before and 6 months after treatment underwent clinical and laboratory examination, X-ray, electromyography, T-Scan Digital Occlusal Analysis. Results: In all 3 groups of patients we observed complete disappearance or significant reduction of complaints and symptomatic manifestations after 6 months of complex rehabilitation. Conclusions: Our study showed that the proposed algorithm of complex rehabilitation of patients with iatrogenic occlusal disorders combined with vertical malocclusion, which provides a multidisciplinary and individualized approach, improves the efficiency of orthodontic treatment of such patients and significantly reduces the duration of treatment in all 3 groups. This sequence of diagnostic and treatment measures gives the best opportunities for the patient to achieve maximum functional and aesthetic result.

Malocclusions that have not been eliminated in time can cause complications such as periodontal diseases, TMJ and muscle dysfunctions.An objective indicator of functional disorders is the change of bioelectrical activity of masticatory muscles. The aim of our study was to estimate thefunctional state of maxillodental system in order to develop the individualized treatment and achievement of high functional and aestheticoptimum in patients with associated occlusal abnormalities who need complex treatment. All examined patients had deviations of the averageamplitude of bioelectrical activity of muscles, asymmetry in muscle function, bursts of spontaneous bioelectrical activity at rest, chewing cyclefragmentations, changes in rest and activity ratio during chewing. One of the most important criteria for the transition to the next stage of treatment isnormalization of bioelectrical activity of the muscles. Such approach allows to achieve stable and long-lasting functional results of the treatment.

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Recent studies showed that regaining the occlusal contacts is oneWork objective: optimization of the diagnostic and treatment process by analyzing the dynamics of changes in T-scan indicators, which will minimize the risk of error in carrying out re-prosthetics after removal of the structures that have become a trigger factor or the cause of manifestations of functional disorders of dento-maxillofacial apparatus.

The aim of the study was to improve occlusal parameters, normalization of masticatory muscles function by correcting re-prosthetic treatment of patients with partial and total ceramic prostheses using different occlusal splints. The algorithm of re-prosthetic approach to occlusal adjustment and reconstruction of mandible position in patients with iatrogenic occlusal disorders was proposed. The clinical groups included 45 patients with iatrogenic occlusal disorders who used removable and fixed ceramic dental prostheses with simplified or detailed design of occlusal surface. The time of treatment using different occlusal splints was from 2 to 3.5 months what had been mentioned in patients' past case histories. Symptomatic and pathogenetic therapy was provided for additional correction of temporomandibular joint (TMJ) functions by anti-inflammatory drugs, vitamins C, D and calcium food supplements, kinesiotherapy and magnetotherapy. It was 73.6% rate of satisfactory results of treatment. Such algorithm of re-prosthetic treatment allows to normalize bioelectric activity of masticatory muscles, functional status of TMJ and occlusal relations of the teeth. Its efficiency was proven by X-Ray and functional diagnostics methods (electromyography of masticatory muscles, T-Scan III computerized occlusal analysis).