The first symptom that a child is matured for school – the deciduous teeth are falling. That’s why there are lots of toothless children in the first forms. Still in September in our class not one friend gave a cry during the lesson: ”The tooth has just fallen”. Now all pupils have real – constant teeth, which, it is understandable, we need to preserve very much in order not to cry at the dentist, not to envy friends’ healthy, strong teeth.