PREDICTION OF VERTICAL IMPACTION OF LOWER WISDOM TOOTH ACCORDING ORTHOPANTOMOGRAPHY OF LOWER JAW

Topic relevance. The dental surgeon often is left alone with the dilemma: to save or remove the third lower molars. The justification of indications for tooth extraction must have objective criteria. It should be noted that a patient with this problem does not always have the opportunity to receive comprehensive advice from an orthodontist. In view of this, the solution to this problem requires the search for radiological data, which are the most available today and would help to justify treatment tactics for preservation or removal of the tooth. The conditions of tooth preservation in the dentition are most favorable with a slight medio-distal inclination and a vertical position of the third lower molars. However, this does not exclude the possibility of tooth impaction, which is often accompanied by periodic inflammatory phenomena in the tissues adjacent to the tooth and motivates both the patient and the dental surgeon to solve this problem. The aim of our study was to research of radiographic indicators of orthopantomography of the mandible to predict the vertical retention of the third lower molars. Material and methods of research. The platforms of Google Scholar, Research Gate and PubMed are used for research and analysis of the scientific literature on the application of objective criteria of mandibular orthopantomography data in the prediction of vertical impaction of the third lower molars. Impaction of mandibular molars is the result of a number of factors, including heredity, racial characteristics, muscle function, the nature of the food consumed, insufficient growth of the mandible, the size of the retromolar space. The accurately determination the positions of the molars and the size of the retromolar space of the mandible by available methods of X-ray diagnosis (the most common of which is the method of orthopantomography of the jaws) are necessary to prediction of tooth retention. The accuracy of imaging and measurements on orthopantomograms of the jaws was studied by both domestic and foreign authors. The angle of inclination of lower wisdom tooth, the size of the retromolar space of the mandible and the mesiodistal size of the teeth are determined on OPTG of jaws in the vast majority of publications. The age aspect of patients is also important for prediction of tooth impaction. In particular, most researchers state the fact that up to 20 years of life there is a significant probability of changing the position of the teeth during their eruption and therefore it is quite appropriate to wait. To predict the nature of the impaction of the third lower molars, the authors provide indicators of the angle of the tooth, the structure of their roots, the degree of impact and age of the patient. The publication of Maria Mersedes Gallas-Torreira and co-authors, which compared two methods of linear measurements on OPTG – Olive-Basford’s and Olmos ’methods have greatest interest. Both methods can be used to predict of impaction of lower wisdom tooth. However, if the prognostic estimate is based on orthopantomogram data rather than cone-beam computed tomography, the Olmos` method demonstrates a lower error rate and a more plausible prediction. To substantiate the algorithm for predicting the vertical retention of third lower molar in order to improve treatment tactics for the preservation or removal of the tooth which based on the obtained search data and the results of our own clinical observations and it is planned in the future.

INFLUENCE OF THE TREATMENT AND PREVENTIVE MEASURES ON THE PHYSICAL INDICATORS OF ORAL LIQUID IN CHILDREN WITH CHRONIC CATARRHIC GINGIVITIS AND DIABETES MELLITUS

The aim of our study was to find out the effect of our proposed treatment and prevention complex, which included oral administration of «Kvertulin» complex drug, «Imupret» drops, «Pikovit» multivitamin drug and «Exodent» local irrigation of the oral cavity with a solution of tooth elixir that influence on the rate of salivation and viscosity of oral fluid in children with chronic catarrhal gingivitis and diabetes mellitus.The treatment and prophylactic measures had positive effect on the homeostasis of the oral cavity, which assisted to reduce the viscosity of the oral fluid, increase the rate of salivation, as evidenced by observation of patients for 6 months. The treatment and prevention complex are recommended to use 2 times a year, as the studied indicators deteriorate over time.

CONDITIONAL TISSUE CONDITION IN PATIENTS WITH PROSTHETIC DENTISTS IN THE PROCESS OF ORTHOPEDIC TREATMENT WITH PROSTHESES MODIFIED BY NANOMATER

The main cause of prosthetic stomatitis belongs to the chemical and toxic action of the residual monomer of the prosthesis base, which is a protoplasmic poison. Occurrence of prosthetic stomatitis depends not only on quality of production of prosthesis in laboratory though at non-observance of technology indicators of residual monomer can reach 2-5%, but also at individual intolerance at its minimum concentration in a prosthesis after polymerization - 0,2-0 .5%. The aim of our study was to increase the effectiveness of orthopedic treatment of patients with prosthetic stomatitis by coating the plastic of removable prostheses with nanoscale materials. Materials and methods. To solve this goal, we studied the condition of the tissues of the prosthetic place of patients with prosthetic stomatitis with prosthetic removable prostheses with modified plastic. Orthopedic dental treatment of 50 people was examined and performed, including 25 people (the second group, prostheses were not covered with nanoparticles) and 25 people (the third group, prostheses were covered with nanoparticles). The first control group consisted of 10 people without signs of pathology. Prior to treatment, all patients had removable acrylic plastic dentures. The reason for seeking orthopedic care was a violation of masticatory function and the inability to use previously made prostheses due to the development of pain in the soft tissues of the prosthetic place. Complaints of pain were observed in all patients of varying intensity, impaired fixation and stabilization of the prosthesis due to swelling of the mucous membrane of the soft tissues of the prosthetic place, heartburn and dryness were observed in 90% of patients. Complaints were also about speech and aesthetic defects. Patients of III group after two weeks of using prostheses were coated with the inner surface of the prosthesis, which is in direct contact with the mucous membrane of the prosthetic place with molecules of fullerene C60, by magnetron sputtering. For this purpose, the prostheses were removed from the patients for several days and returned after the coating with the nanomaterial, after which the observation was continued. The results. After coating the prostheses in patients of group III with Fullerene C60, we observed the disappearance of inflammation of the mucous membrane under the prosthesis and patients noted the absence of discomfort. Рatients in II group had a negative dynamics in 80% and had diffuse inflammation of the mucous membrane under the prosthesis. Within 3 months of use, 18 patients (72%) in II group reported that they stopped using removable dentures during the day, due to unpleasant pain under the prosthesis, and used only during meals and during conversations. In contrast to II group, patients in III group did not notice discomfort when using plate prostheses. Conclusions. Obtained in the course of the work convincingly prove the effectiveness of the use of removable plate prostheses with nanocoating for the treatment and prevention of prosthetic stomatitis in patients. This is evidenced by the data of objective examination and the disappearance of complaints from patients.

DYNAMICS OF INDICATORS OF DECIDUOUS TEETH CARIES IN CHILDREN 3-5 YEARS OLD

Children's dental health has always been and remains an extremely important issue in modern society. According to the WHO, the incidence of dental caries in different countries and among different contingents ranges from 80% to 98%. In recent decades, there has been a growing trend among children. Of particular concern is the significant incidence of early dental caries in children, which is up to two years 62%, and at three years 70.3%. Effective prevention programs and early treatment of caries can improve the quality of children's dental health, and consequently the quality of their general physical health. The aim of our study was to study the dynamics of caries of deciduous teeth (prevalence, intensity, treatment necessity of deciduous teeth, the level of dental aid) in 3-5 years old aged children (observation during the year). All children were examined for the prevalence (%) and intensity of caries of deciduous teeth by the DEF-index and their increase was found in all age groups. The increase in caries for each age group is from 0.2 to 0.3 teeth. The prevalence of caries was studied at each age. 3-year-old children had a caries prevalence of 36.0 ± 6.85%. One year after the first examination, the prevalence of caries in 4-year-old children was now 42.0 ± 7.05%, which is 6% more than a year ago. The same trend is observed in children in the period from 4 to 5 years. The increase in the prevalence of caries in this group for the year is 6.7%. And in the group 5-year-old children the increase in the prevalence of caries per year was 3.1%. Comparison of children 4-year-old, but different groups did not reveal a significant difference. And at the age of 5 a probable difference in the prevalence of caries was revealed. Children with preventive work had a prevalence of 44.0 ± 5.77% against a group of children who were not provided with recommendations for maintaining dental health (65.3 ± 4.91%). In general, in children 3-5-years-old during first examination, the prevalence of caries was 49.1 ± 7.21%. During the year, the increase in the prevalence of caries in the same group of children, but 4-6-years-old, is only 4.9%. The intensity of caries indicates a slight increase in the number of teeth with caries in each group of children. But a comparison of this indicator in children of the same age of different periods of the survey revealed a probable difference at the age of 5 years (1.9 ± 0.35 teeth) (children who were recommended) against 2.7 ± 0.33 teeth (examined 1 year ago).The treatment necessity of deciduous teeth is 54% and the level of dental aid is 13%. Carrying out preventive work with children and their parents on selection of subjects and means of hygiene, regular care of an oral cavity, observance of a healthy food, necessity of sanitation of an oral cavity gave the chance to increase quantity of fillings at children of 4-6 years in comparison with 3-5 years and reducing the number of removed teeth due to complicated caries. Effective prevention programs and early treatment of caries can improve the quality of children's dental health, and consequently the quality of their general physical health. Timely and planned oral hygiene is a common and effective method of prevention of caries and periodontal disease in young patients. That is why a significant place in the prevention of caries in children is occupied by hygienic education and upbringing of children and their parents.

MINIMAL INVASIVE SURGICAL METHODS FOR TREATMENT OF CHRONIC PERFORATED SINUSITIS

The main factors of the odontogenic maxillary sinuses inflammation are perforation of the maxillary sinus bottom during teeth removal, anatomical and physiological features of the maxillary sinus structure when the root or roots are located in the cavity of the maxillary sinus, which is independent of the dental surgeon in any case, a perforation of the maxillary sinus bottom during teeth removal, as well as more complex chronic processes in periodontium, which form resorption of bone tissue within the bottom of the maxillary cavity, and clinical cases with the root penetrating the cavity of the maxillary sinus or the foreign body penetrating the genyantrum. Difficulties appear in the operation of removing the upper jaw teeth, which are located near the bottom of the maxillary cavity or in the genyantrum cavity, and in the presence of inflammation, accompanied by bone resorption. Therefore, in order to prevent complications of perforated sinusitis, there is a need to develop new non-invasive methods of prevention and treatment of perforation of the bottom of the maxillary cavity. One can state with certainty that traditional traumatic surgical interference, such as Caldwell-Luc radical antrostomy, is less frequently used in clinical practice. Nowadays many authors offer less traumatic methods for treating perforations and maxillary sinus fistula. We also offer our options of surgical interference using the domestic bone and plastic material (Kergap), GAP “Biomin”. In the case of the foreign body penetrating the maxillary sinus cavity, under the conduction anesthesia, a mucosal flap from the vestibular side is formed, and, if necessary, another one may be formed from the palatine side. We extend the bone hole to the necessary size so that it is possible to get the foreign body out through it, use a curettage spoon to remove the pathologically altered mucous membrane of the maxillary cavity till a healthy bone, then cover the bone hole with the osteoplastic material and cover it with the mu- cous flap, fix it and suture with the “Vikril 3,0” material. In case of maxillary cavity perforation during teeth removal operation, which roots break through the bottom of the maxillary sinus, which does not depend on the experience and qualifications of the dental sur- geon, the edges of the perforated hole are smoothed with a cutter or bone forceps in such a way that there are no sharp perforation eminences. Be sure to wash the sinus with a warm solution of antiseptic. We cover the bone joint between the maxillary and the oral cavity (with Kergap), GAP Biomin. After that, cover the maim with the cut bone flap and suture with the “Vikril 3.0” material. In more complex clinical cases, such as chronic long-term inflammatory processes without exacerba- tion of pathological processes in the genyantrum sinus of odontogenic origin, when a foreign body pene- trates the maxillary cavity, we decided to modify extreme maxillary sinusotomy using the Caldwall-Luc method, which became the goal of our research. Description of surgical interference: under local anesthesia, we simultaneously carry out an operation for removing the causative tooth and make a trapezoidal incision in the area of the maxillary sinus transi- tional wall. After that, we make a bone hole on the anterior wall of the maxillary sinus, do not sculpt the pathologically altered mucus, remove the foreign body through the bone hole. Antiseptic treatment is carried out during surgical interference. If there is a route between the maxillary sinus and the lower nasal passage, we do not form another one. After applying antiseptic, we put the bone flap onto the place and fixed with non-absorbing sutures, sew the removed tooth well with a pre-closed perforation aperture using osteoplastic material (Kergap), GAP Biomin. After that, we irradiate the surgical wound with a helium-neon laser, which provides a gentler healing period of the wound after surgery. Seams are removed on the 8th-12th day after surgery. The patients were examined both in the short term and in the long-term, after a year or more. No relapses of the oronasal route were found, bone wound healed in the period of 6-8 months, and contrast Rg-scans showed no regression of polyposis and granulation dilatations. In our opinion, this is the result of etiopathological treatment aimed at eliminating the cause. Thus, according to our research treatment and prevention of perforated sinusitis requires etiopathological treatment. The formation of an oronasal route during the causative tooth removal of odontogenic sinusitis re- quires the closure of this route with osteoplastic material (Kergap), GAP Biomin, while suturing the tooth. In the case of a foreign body entering the maxillary cavity, the traditional method opens the maxillary cavity in order to remove the foreign body through the anterior wall of the maxillary sinus and treats it with the solution of antiseptics without making a route with the lower nasal passage. It can be combined with the causative tooth removal and the tight suturing of the mucous flaps, which is less a traumatic surgical interference than the extreme Caldwall-Luc method of sinusotomy. Eliminating the inflammation cause of the maxillary sinus in combination with the osteoplastic closure of the oronasal route with tight suturing is a thorough treatment compared to the traditional technique. The regularities discovered as a result of clinical and X-ray quality assessment of non-invasive surgical methods for the treatment of chronic perforated sinusitis require further long-term studies and evaluation of other factors that influence the success of chronic perforated sinusitis treatment.

DEPENDENCE OF CHANGES IN THE HYGIENIC CONDITION OF THE ORAL CAVITY AND PERIODONTIUM IN CHILDREN WITH MALIGNANT TUMORS ON THE DURATION OF POLYCHEMYTHERAPY AND QUANTITIES OF CYTOSTATIC DRUGS

It is known that the course of cancer and chemotherapy adversely affect the components of homeostasis of the oral cavity, which causes stomatotoxicity. However, scientific publications have not yet provided generalized results of research on the pathogenetic mechanisms of the dental pathology formation during chemotherapy, which constitutes the relevance of this publication. The aim of the research was to study the effect of different regimens of the second course of chemo- therapy on the hygienic condition of the oral cavity and periodontium in children with malignant tumors of the abdominal cavity. The dissatisfaction with our results obtained after the first course of chemotherapy on various regimens prompted us to further research. A survey of two previously formed clinical groups was performed. All of them resumed the treatment in the oncohematology department of the Poltava Children's City Clinical Hospital following a 3-4 week break between courses. Each patient was treated according to an individual program but in the absence of dental care. The dental status was assessed using the Green-Vermillion, Papillary-Marginal-Alveolar (PMA), and Pa- pilla Bleeding Index. The study of cytograms from the surface of the gingival margin of the frontal part of the mandible was carried out taking into account the methodology developed by our department's staff. The calculation was per- formed in 10 visual fields. Statistical processing was performed according to standard conditions. Research results and their discussion. It should be noted that in the comparative aspect, the indexes of Green-Vermillion, PMA, and RВI at the end of the first year were 1,8, 1,3, and 1,6 times worse than in the second observation group which received more cytostatic drugs. At the end of the second course of chemotherapy, the dryness of the mucous membrane accompanied by a decrease in oral fluid, which became viscous, was observed in 14 children (70,0%) of the first and 18 of the second group (85.7%). In addition, 15 people in the first group (75,0%) and 19 in the second one (90,4%) complained of pain and bleeding gums, which worsened when eating. At the same time, all children noted pain in the muscles that are adjacent to the lower jaw and involved in articulation. On external examination, only 2 children of the first (10,0%) and 1 of the second group (5%) had a red normal-coloured lip border, while the rest had exfoliation, cracks, and angular cheilitis. The oral mucosa mostly looked pale and pasty, except for 7 people of the second group (35,0%), who had manifestations of erythema. Localized erosions covered with fibrinous plaque were detected in 4 of these patients (20,0%) on the background of erythema. In addition, 12 children (60,0%) of the first group and 19 children of the second one (85.7%) showed swelling and redness of the gingival marginal edge, and the probing of the gingival sulcus provoked bleeding in all children of both groups. Green-Vermillion indexes increased by 1,5 and 1,7 times in the first and second groups, PMA increased by 1,4 times in both groups, and RВI was 1,4 and 1,5 times higher in the respective compared groups. The examination of cytograms revealed more pronounced changes in the second group where the epithelium with signs of intermediate stages of the differentiation prevailed. There was increased desquamation of the superficial layer of the gums and the increased number of peripheral blood elements, especially destroyed neutrophils. Thus, the generalization of the results obtained at the end of the second course of chemotherapy showed that the Green-Vermillion index was 1,8 times higher, and PMA and SВI indices were 1,4 times higher in the second observation group which received more cytostatics. That is, the severity of the manifestations of dental status disorders is directly proportional to the severity of the regimen. Conclusion. The prolongation of the second course of chemotherapy in children with abdominal malignant tumors provoked a significant deterioration of dental status. Major changes occurred in the group of children who received more cytostatic drugs simultaneously, which requires a balanced approach to designing differentiated treatment plans and prevention measures depending on the complexity of antitumor therapy regimens. Prospects for further research. The obtained results indicate the need to develop a set of differentiated treatment and prevention measures aimed at eliminating or improving changes in children that occur in the oral cavity under the influence of polychemotherapy.

DETERMINATION OF NORMATIVE CEPHALOMETRIC PARAMETERS ACCORDING TO THE STEINER METHOD FOR UKRAINIAN YOUNG MEN AND YOUNG WOMEN WITH DIFFERENT FACE TYPES

In Ukrainian young men (n=49) or young women (n=76) with orthognathic occlusion with different face types, numerous reliable and tendencies of differences of cephalometric parameters by the Stainer method were established. Among the indicators belonging to the second group (indicators of the upper and lower jaws according to the Steiner method), significant differences were found only between young women with a very wide face and other types of faces. Among the indicators belonging to the third group (indicators by the Steiner method that characterize the position of each individual tooth relative to each other, cranial structures and soft tissue profile of the face), more pronounced differences are also found between young women with very wide faces and other facial types; among young men – with representatives with a wide face compared to the middle and narrow face types. Among the cephalometric parameters belonging to the second group of indicators, the expressed manifestations of sexual dimorphism of cephalometric parameters are established only for linear indicators; among the parameters belonging to the third group of indicators, the manifestations of sexual dimorphism are established for both linear and angular indicators.

THE PREVALENCE OF MALOCCLUSIONS IN CHILDREN AGED 6-13 YEARS LIVING IN KYIV AND KYIV REGION

For many years, malocclusions have remained one of the most common dental pathologies in the world. Malocclusions are found in every second child and teenager in the world, and their prevalence does not change depending on the stage of the bite. Having polyetiological causes, malocclusions affect most body systems, which are closely related to the functions of respiration, chewing, swallowing, and speech. Our goal was to obtain up-to-date data on the prevalence of malocclusion in children during the period of mixed and early permanent occlusion. In this study, we examined 674 children aged from 6 to 13 years (with the mean age of 9.2). The examined patients' occlusion was assessed in three planes: sagittal, vertical, and transverse. In the sagittal plane, the occlusion was assessed according to Angle’s classification, children were divided into three groups according to this criterion: class I, class II, class III. The overbite was estimated in the vertical plane. Children were divided into three groups: normal group, overbite, open bite. The overlap in the lateral areas was estimated in the transverse plane. Children were divided into three groups according to this criterion: normal group, bilateral crossbite, unilateral crossbite. In 94.51% of all children aged from 6 to 13 years, living in the city of Kyiv and Kyiv region, there was a malocclusion in one of the three planes, regardless of the gender. Only 5.49% of children did not have a malocclusion. Among the total number of children examined, class I was observed in 324 children, class II in 296 children, class III in 54 children. Among all examined children aged from 6 to 13 years, overbite was diagnosed in 57.27% (386 children). The open bite was determined least often, with the incidence rate of 9.64% (65 children) among the examined 674 children. Unilateral crossbite was observed in 58 children (8.61%) among 674 subjects. In most cases, namely, in 43 children (74.14%) out of 58 children, unilateral crossbite was accompanied by the midline displacement. Bilateral crossbite was detected in 163 children (24.18%) among the total number of respondents. Bite anomalies in sagittal and vertical planes were observed in 444 children (65.88%), 91 children (13.5%) in the sagittal and transverse planes, 43 children (6.38%) in the vertical and transverse planes, and 59 children (8.75%) in all planes. Developing a strategy for early prevention and treatment of malocclusion in children, as well as eliminating bad habits are important factors in combating the growing number of patients with orthodontic pathologies. Our data indicate a high prevalence of malocclusion among children and teenagers and the need to review the prevention management and early treatment of children of this age group.

METHOD OF HEALTHY TEETH EXTRACTION IN ORTHODONTIC TREATMENT

In the treatment of orthodontic patients, the most difficult and controversial is the question of removing healthy teeth. The aim was to evaluate the 30-year orthodontic clinical experience of the staff of the Postgraduate Education Department of Orthodontists for the use of medical methods of removal of individual healthy teeth in the treatment of dental anomalies. The aim of our study is to evaluate 30 years of orthodontic clinical practice of the staff of the Postgradu- ate Education Department of Orthodontists for the use of medical removal of individual healthy teeth in the treatment of dental anomalies. 1340 dental outpatient cards of orthodontic patients who underwent orthodontic treatment and completed it with a positive result were reviewed at two clinical bases of the Postgraduate Education Department of Orthodontists. The analysis of selected outpatient cards was performed taking into account the age and sex of patients, as well as depending on the type of pathological occlusion (according to Angle) and the type of teeth removed. Cards of patients with Angle's class I and II pathology were selected for scientific analysis. 241 patient underwent tooth extraction at both bases in total in terms of treatment, which is 17.99%. The number of patients with removed temporary teeth was 59.39% (143/241), patients with removed permanent teeth - 40.7% (98/241). Permanent teeth were removed 1.45 times more often at the clinic "Orthodontist", which is explained by the higher frequency of requests for orthodontic care from adults and adolescents. On the basis of the Postgraduate Education Department of Orthodontists, patients with deciduous teeth predominate - 69% (51/74) against 45% (75/167) in the clinic "Orthodontist". This is due to the fact that the main contingent of patients who seek help from the department are patients in the age of variable occlusion, which means that the Hotz method and the author's method of corrective removal of temporary molars are used more often. A detailed analysis of the documentation of patients was performed at the base of the Postgraduate Edu- cation Department of Orthodontists who were treated with the use of individual teeth extraction by periods of occlusion. Children in the period of the first half of the variable occlusion accounted for 39.19% (29/74), chil- dren in the second half of the variable occlusion - 25.67% (19/74), and patients older than 13 years - 35.14% (26/74). In female patients, regardless of age, tooth extraction is performed 13% -15% of cases more often than in men, which is due to a more attentive attitude to the appearance of girls by their parents. Among patients with various types of pathological occlusions treated with the method of removal of individual healthy teeth, children, adolescents and adults with Angle class I occlusion pathology accounted for 53.94% (130/241). Assessing the frequency of application of the method of extraction of healthy teeth by age, we can say that in pathology of class II according to Angle most often the method is used in patients with permanent occlusion in 38.73% (43/111). In the treatment of pathology of class I according to Angle, the removal of healthy teeth is twice as often performed in alternating occlusion than in permanent. In the treatment of pathology of class II according to Angle, the method of removing individual teeth is more often used in patients with permanent occlusion. Research on the consequences of removing individual healthy teeth in orthodontic treatment is relevant and timely. Both in the private sector of orthodontic care and on the clinical basis of the Postgraduate Education Department of Orthodontists, about a fifth of patients of any age and any orthodontic pathology are treated orthodontically using the clinical method of removing individual healthy teeth.

TELERADIOGRAPHIC INDICATORS IN YOUNG MEN AND YOUNG WOMEN WITH ORTHOGNATHIC OCCLUSION DETERMINED ACCORDING TO THE BJORK METHOD

When comparing the cephalometric parameters used in the Bjork method, between Ukrainian young men (n=49) and young women (n=76) with orthognathic occlusion in young men, significantly (p<0.05-0.01) greater values of distances Ii-Is and Wits; and in young women – significantly (p<0.05-0.01) larger values of the angles NSL/ML and NL/ML and Pr-N-A, OLs/NL and OLf/NSL. The following differences in cephalometric parameters proposed as normative indicators for residents of European origin according to the CFT-Bjork method were established: Ukrainian young men and young women had significantly (p<0.05-0.001) higher values of S-N-A, S-N-Pog, S-N-B, CL/ML and ILs/ILi and significantly (p<0.01-0.001) smaller values of an- gles A-N-Pog, A-N-B, NSL/ML, NL/ML, ML/RL, OLs/NL, OLi/ML, OLf/NSL and distances Is-NSL; only in Ukrainian young men significantly (p<0.05) larger values of the angle NSL/NL; only in Ukrainian young women significantly (p<0.05) larger values of the angle Pr-N-A and significantly (p<0.01) smaller values of the distance Is-OLf.