Inflammatory periodontal diseases are characterized by non-deviant growth, are widespread among children and large groups of the population. At the same time, periodontal diseases occur in school-age children: from 30-50% - in children aged 10-12 years, 55-96% - in children aged 13-15 years. The stagnation of the gum mucosa depends on the state of the upper layer – the epithelium, which acts as a functional barrier to microflora due to the property of epithelial cells, as well as the process of constant proliferation and differentiation of cells on the gum surface
