Recently, sanitary and educational work for the prevention of dental diseases in children is widely implemented, but the problem of awareness and oral hygiene in young and middle-aged people remains quite relevant. Nowadays, the range of dental items and hygiene products is quite wide, so a person who does not receive the recommendations of a dentist is quite difficult to understand what and why it should be used. Therefore, the aim of the study was to study the preventive knowledge of ordinary passers-by of young and middle age and their awareness of additional subjects and hygiene products. Object and methods of research. To achieve this goal, 100 passers-by in the center of Poltava were interviewed. According to the age classification of the World Health Organization: the young age is from 25 to 44, middle age is 44-60, elderly age is 60-75, senile age is 75-90 and long-livers are after 90. Two age groups were selected for the results: young and middle-aged, as these groups are the most common. Age was determined by survey. 50 people aged 25-44 years and 50 people aged 44-60 years were elected. The gender was not taken into account when choosing a contingent. Passers-by were asked 5 simple questions that characterized both the preventive habits of the respondents and knowledge about hygiene items and products. Research results and their discussion. Analyzing the answers to the questions, we found that young people (25-44 years) are more aware of the rules of oral care than middle-aged respondents (44-60 years). Answering the first question - "How often do you visit the dentist?" respondents answered as follows: only 5 young people visit the dentist as needed, while among middle-aged people this number is seven times higher. When answering the second question - "Do you pay attention to the composition of toothpaste when choosing?" respondents answered as follows: 42% of young people always pay attention to the composition, twice as many people - buy what the dentist advises, and the rest respondents were not interested in the components of the paste. The results of the second group were significantly worse. The third issue concerned the frequency of toothbrush changes, which is very important for the quality of oral hygiene and cleaning efficiency. The results of the survey showed that people from the older age group of the study are less aware of this issue. The answers to the fourth and fifth questions also showed a lower level of knowledge in middle-aged people. Thus, after analyzing the answers of the respondents, it is clear that people of the younger age group (25-44 years) are more aware of oral hygiene and prevention of dental diseases. In our opinion, this situation is associated with the introduction of health education at different levels, available information on the Internet and various social platforms, more responsible attitude to their health and awareness of preventive measures. It is necessary to pay attention to the education of middle-aged people regarding oral hygiene, as it is an integral part of the prevention of dental diseases.

Dental fluorosis is caused by ingesting too much fluoride while the teeth are developing. Poltava region belongs to Buchach fluorine hydrogeological province which ground waters are characterized by a high content of fluorine. Such districts as Myrgorod, Lubny, Gadyach, Globino, Mashivka, Shyshaky and Novy Sanzshary have fluoride concentration in drinking water from 2,5 tо 7 mg/l. It is known that the overdose of fluoride has deleterious effect on enamel development, generating a hypomineralized porous subsuperfacial enamel. Mild fluorosis transforms into moderate fluorosis with brown pigmentation over time and increasing the severity of fluorosis is associated with increasing the patient`s dissatisfaction. There are a few different ways that dental fluorosis can be treated. Local remineralisation therapy is the most careful way to reduce or eliminate fluorosis spots. Enamel microabrasion removes the outer porous enamel with pumice after it has been partly demineralized by the acid; topical fluoride that remineralized the enamel follows microabrasion. A teeth whitening can return teeth to their former glory in a single visit. Infiltration technique is the novel approach to fluorosis management which masks white spots. Veneers or crowns are the next option that restores teeth gleaming appearance. Unfortunately, previous reviews that have analyzed contemporary methods of fluorosis treatment didn’t determine their indications depending on the disease severity and the enamel maturation. Purpose of the study was to systematize the methods of dental fluorosis management offered last years and to determine the indications for their use depending on the severity of the disease and the maturity of the tooth enamel. Searching strategy for identification of scientific publications published between the years 2009 - May 2019 was conducted by reviewers independently through Google. The search strategy included keywords "dental fluorosis management", «teeth whitening», «teeth microabrasion», «infiltration for fluorosis treatment» and it was complementated by checking references of the relevant review articles and the eligible studies for additional useful publications. Over the last 10 years few articles were dealt with minerals, vitamins, adaptogens, antitoxicants prescription for fluorosis management. Such tooth pastes as «R.O.C.S» and «Novyi zhemchuh calcium» showed efficacy in local remineralisation therapy of fluorosis in children. Infiltration technique was used for mild fluorosis management and in combination with whitening for moderate fluorosis treatment in children. Different tooth whitening techniques were offered and only some of them include local remineralisation therapy that can stabilize clinical result. Carbamide and orthophosphoric acid were utilized for whitening of immature fluorosis teeth. Microabrasion in children's teeth was effective in combination with following fluoridation, for example Tooth Moose. Direct and indirect restorations are considered the treatment of choice for moderate to severe cases of fluorosis given the optimum aesthetics, wear resistance, biocompatibility, and long-term results. Whereas veneers and crowns are indicated in mature fluorosis teeth, choice of direct composite restorations doesn’t depend on tooth maturity. Treatment of fluorosis of various severities in children should include endogenous use of medicines that increase the enamel remineralisation. Local remineralisation therapy is indicated for mild fluorosis in immature teeth and for moderate fluorosis in combination with bleaching and microabrasion. Infiltration technique is recommended for mild fluorosis management and in combination with whitening for moderate fluorosis treatment in children. In the case of inefficiency of minimally invasive methods or severe fluorosis, direct or indirect restorations are conducted. Promising direction in fluorosis treatment is the development of new methods for fluorosis management, including general and local remineralization therapy, as well as infiltration technique.

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The aim: To study the prevalence of odontoglyphic variants of the first permanent molars of the lower jaw in children 6-7 years old, as well as the frequency of caries lesions in molars with the most common types of patterns on their chewing surface. Materials and methods: We studied 1092 mandibular molars in 564 children without background pathology at the age of 6-7 years. The dynamics of the occurrence of fissure caries was studied in 347 first permanent molars of the lower jaw for 2 years and 246 molars in 155 children from among those observed during 3 years of the study. Results: In the children examined by us, the most common types of the chewing surface of the first permanent molars of the lower jaw were Y5- and + 5 patterns. We did not find a difference in the frequency of occurrence of these types in the surveyed girls and boys (p > 0.05). Our study showed that most often the first permanent molars of the lower jaw were affected by caries in the first 2 years of follow-up. The incidence of affection of the lower molars, which had a more complex structure of the occlusal surface (type Y5 and +5), was significantly higher than that of molars with the type of chewing surface +4. Conclusions: It has been established that in children 6-7 years old, the first permanent molars of the lower jaw have a more complex structure of the chewing surface, and the intensity of their caries damage is maximally high in the first two years after eruption and require active additional preventive measures in the early terms after their eruption. KEY WORDS: odontoglyphic, fissure caries, prevention, intertubercular fissures Wiad Lek. 2021;74(6):-