The beginning of a new school year is always a serious test for a child's body. September requires a child to rapidly restructure all physiological and psycho-emotional systems. After a long summer vacation, hardening, being outdoors, and a free daily routine, a child suddenly finds himself in a high-stress environment with strict time management.

Hundreds of thousands of parents face the same problem: the child regularly brushes his teeth, uses high-quality toothpastes, limits sweets, but the dentist diagnoses caries again and again. Traditional dentistry often explains this by "bad genetics" or "insufficient hygiene". However, modern evidence-based science and microbiomics prove: caries is not a local problem of one tooth.