Волгоградский государственный медицинский университет,Лаборатория моделирования патологии, кафедра терапевтической стоматологии, кафедра патологической анатомии В современной клинической практике крайне актуально изучение микроциркуляторных расстройств на фоне местного лечения различных стоматологических заболеваний. В связи с ростом числа пациентов с красным плоским лишаем слизистой оболочки полости рта, длительным хроническим течением заболевания, низкими результатами существующих методов лечения данной патологии, возможностью малигнизации процесса актуальным является поиск новых препаратов, обладающих высокой эффективностью и дающих стойкий терапевтический эффект за минимально короткое время. В данной работе с помощью лазерной допплеровской флоуметрии показана динамика функционального состояния микроциркуляции полости рта спустя 6 месяцев после лечения эрозивно-язвенных поражений различными по составу и свойствам медикаментами. Все пациенты были разделены на 3 группы: I -традиционное лечение, II -аппликации композиции тизоля с L-аргинином, III -аутогемотерапия. Доказана и обоснована эффективность включения в схему лечения инъекций тромбоцитарной аутоплазмы и композиции тизоля с L-аргинином.

Introduction — C-shaped configuration is amongst the most complicated root canal varieties requiring additional effort for successful endodontic treatment. The goal of this study was the laboratory comparison of the endodontic treatment efficiencies via XP-endo vs. Gentlefile systems for the teeth with C-shaped root canals. Material and Methods — In laboratory settings, 36 teeth with established C-shaped configuration, extracted for medical reasons (24 mandibular premolars and 12 mandibular second molars), underwent the root canal treatment by XP-endo (XP) and Gentlefile (GF) systems. Treatment quality was evaluated on the basis of dye penetration tests and examination of root dentinal surface with a scanning electron microscope. The significance of differences between the groups was assessed via Mann-Whitney U test. Results — For GF instruments, the average size of stained area in the apical third of teeth was 3.33±2.73%, while in the coronal third it amounted to 13.49±13.58%. The results of using the XP instruments demonstrated the average size of stained area in the apical third equal to 15.45±12.48%, while in the coronal third it was 37.30±14.06%. The scanning electron microscopy revealed a rougher surface of dentin and the remnants of stained layer in root canals treated with GF system. Conclusion — Thus, XP instruments exhibited a better treatment quality compared with GF system. The obtained data may justify the choice of instruments for endodontic teeth treatment in case of an intricate root canal system.

1800 pre-made cone beam computed tomograms (CBCT) were examined, of which 202 CBCT were selected. It was revealed that a prevalence of three-rooted mandibular first molar was 2,5 %, second molars – 4,5 %. First molar supernumerary root was always distolingual root (radix entomolaris). Second molar supernumerary root was distolingual root in 2,5 % (radix entomolaris), in 2 % mesialbuccal root (radix paramolaris)., The prevalence of double-root in the mandibular first premolar was 2 %, in the second premolar was 1 %, in the mandibular canines was 5 %, the bifurcation was located in the apical and middle third root canals of canine and premolar, which makes endodontic treatment of such teeth as difficult as possible.