Browsing by Author "Tkachenko, I."
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Item The microflora of the oral cavity with gingivitis in children with cystic fibrosis(2017) Tkachenko, I.; Shevchuk, D.; Vincente, MaurelioItem The relationship between the condition of the oral cavity and the use of tobacco products in different age groups(2024-05) Moroka, R.; Povaliaiev, V.; Tkachenko, I.; Fomenko, Yu.; Babai, O.; Mikulinska-Rudich, Yu.; Iskorostenska, O.; Borisenko, Ye.; Nazaryan, R.; Gargin, V.Understanding the harmful effects of using tobacco products (cigarettes, electronic cigarettes (e-cigarette) or vape, IQOS, hookah, etc.) by various segments of the population is one of the important ways to improve the condition of the tissues of the oral cavity, since smoking is an important risk factor for the occurrence of chronic destructive periodontal diseases.Item The treatment of chronic generalized catarrhal gingivitis in children with somatic disease(Asfendiyarov Kazakh National Medical University, 2017-04) Tkachenko, I.; Shevchuk, D.; Nazaryan, R.Item Wear resistance of dental materials which are used for anterior teeth restorations(Aluna Publishing, 2020) Yanishen, I.; Tkachenko, I.; Skrypnikov, P.; Hasiuk, P.The aim of this study was to compare the wear resistance of such restorative materials as composite resin, feldspathic ceramic, leucite glass ceramic with intact enamel and to draw an analogy with some similar researches. Materials and methods: In this research 20 extracted human teeth (maxillary incisors) without fillings and carious cavities were used as samples. All samples were disinfected and stored in saline in order to prevent dehydration. Teeth roots were cut off for the measure of fixation on an organic glass plate using chemically polymerizable resin. If necessary, the teeth were also cut on their lateral sides in order to give them equal size. The samples were placed in a frame-holder, located on the lever of the machine MI-2, which determines abrasion resistance under slipping. Results: The research has revealed that the average wear resistance of natural teeth was 122,67±4.9 J/mm3 (Tab 1). The archived result overcomes dental composite resin twice more (62.8±1.21 J/mm3), feldspathic ceramic 6.5 times more (16.32±1.2 J/mm3) and leucite ceramic over the half (73.79±3.12 J/mm3) Conclusion: Thus, according to this performed research and the analysis of the relative literature sources it can be stated that dental composite resin and leucite ceramics may be proposed as the materials of choice for anterior restoration of teeth. They have shown the good wear resistance and tolerance to antagonizing natural teeth.