TY JOUR TI MORPHOFUNCTIONAL DISORDERS OF THE MUSCULO OF THE ORAL CAVITY AND THEIR PREVENTION IN CHILDREN WITH DISEASES OF THE GASTROINTESTINAL TRACT IN ORTHODONTIC TREATMENT KW oral mucosa KW children KW gastrointestinal diseases KW orthodontic treatment KW cytomorphometric method JO Actual problems in dentistry AU Demchenko, D.N. AU Podoprigora, A.V. AU Komarova, Y.N. AU Kalivradzhiyan, E.S. AU Stepanov, I.V. AU Shcherbinin, A.S. PY 2020 IS 16 PB TIRAZH Publishing House