Histological and immunohistochemical characteristic of the gingival stroma in the portion of the third molars in children of various age.

OBJECTIVE: Aim: To evaluate the state of the gingival stromal elements in the portion of the third molars requiring extraction of these teeth due to orthodontic indications considering the stage of tooth germ formation. PATIENTS AND METHODS: Materials and Methods: The surgery to extract third molars due to orthodontic indications was performed on 95 children aged 11 to 18 years. The three groups of observation were isolated according to clinical-radiological signs: І (n=30) - children aged 11-13 years; ІІ (n=35) - children aged 13-16 years, and ІІІ (n=30) - children aged 16-18 years. During surgery, the samples of gums were taken from the adjacent areas for examination. The samples were fixed, dehydrated, paraffinized for further histological processing. Immunohistochemical methods were used according to the protocols supplied by a producer. In particular, by means of immunohistochemical method, Ki-67, CD-34 antigens and vimentin with primary antibodies against them were determined. The primary antibodies were visualized by the polymeric visualization system with diaminobenzidine giving a brown color to the places of location of the antigens examined. The data obtained were statistically processed. RESULTS: Results: The results of the study showed that specific gravity of the vascular bed in the gingival papillary layer of children was the most variable. It ranges from (12,7±0,09) % at the stage of "D" root formation to (54,8±0,17) % at the "H" stage. Lower concentrations of CD-34 antigens and vimentin are found in the endotheliocytes of children aged 13-16 and 16-18 years, compared to the children aged 11-13 years (p<0,05). No changes were found in the specific volume of the blood vessels, CD-34 antigens and vimentin in the reticular gingival layer of children from the groups of observation. CONCLUSION: Conclusions: Therefore, the conducted histological and immunohistochemical study of the connective gingival tissues in the portion of the third molars in children enables to draw a conclusion that in the process of formation of the root of this tooth a number of changes occur in the gingival stroma. They include an increase of the blood flow volume in the papillary gingival layer on the background of a decreased concentration of CD-34 genes and vimentin, a longer stage of development of the third molar root. The specific volume of the islets of neoangiogenesis of the papillary gingival layer is the largest in children aged 13-16 years.

Potential Effectiveness of Poly-Vitamins and Probiotics among Preschool Children Living within Iodine Deficiency Territory to Caries Prevention

ABSTRACT Objective: To evaluate the potential effect of poly-vitamins and probiotics use among preschool children permanently living within iodine deficiency territory on caries prevention. Material and Methods: 80 children aged 2-3 years old were randomly distributed among the study group (21 male and 19 females) and control group (20 males and 20 females). Oral fluid samples were formed from each study subject during primary examination and after 1 year of monitoring, which further were analyzed by parameters associated with mineralization potential of oral fluid. Both groups were provided with oral hygiene educational training, while the study group was also prescribed with poly-vitamin-mineral drug complex and probiotics. Results: After 1 year of monitoring, no significant changes considering caries prevalence (p>0.05) or intensity (p>0.05) values were registered among study and control groups. Difference of free calcium level, phosphate ion level and alkaline phosphatase activity was statistically approved (p<0.05) while comparing between study and control group after 12 months of monitoring. Conclusion: Caries preventive approach consisted of oral hygiene educational training and course of properly prescribed poly-vitamins and probiotics intake demonstrates positive results related to the changes within mineralization potential of oral fluid among preschool children with long-term residence over geographically associated iodine-deficient territory.

Clinical and immunologic assessment of a complex of therapeutic-preventive measures concerning chronic catarrhal gingivitis in children with comorbid diabetes mellitus.

OBJECTIVE: The aim of our study is to increase the efficacy of treatment of chronic catarrhal gingivitis in children suffering from type 1 diabetes mellitus by means of improvement of themethods of pharmacological correction on the basis of investigation of clinical-immunologic peculiarities of the disease. PATIENTS AND METHODS: Materials and methods: 2 groups of the study were formed. Children received basic insulin therapy. The treatment of chronic catarrhal gingivitis in children from the main group were suggested the antiseptic solution "Decasan"; pill of a probiotic action "BioGaia ProDentis" and the immune modulator "Imupret". Children from the comparative group were treated according to the common scheme. RESULTS: Results: The state of the oral hygiene in all the children after treatment improved considerably. According to PMA index inflammatory process was completely eliminated in children from the main group. A similar tendency was observed concerning sextants with gingival bleeding. In children dental calculus was lacking after treatment. Lysozyme activity in the oral fluid of children after treatment increased approximately 37.50% in the main group, and 16,67 % - in the comparison group. A similar tendency was found concerning sIgА level. CONCLUSION: Conclusions: Therefore, conducted course of the treatment concerning chronic catarrhal gingivitis promoted considerable improvement of the periodontal tissue in children.