[Conceptions and facts on difficult primary dentition (author's transl)].

The appearance of the first teeth is often regarded as a particular effort of the child and associated with various complications. On the basis of clinical observations and histological investigations the statements and conceptions were looked into and the process of growth followed up closely for the purpose of clarifying physiological and pathological events, thus also differentiating facts from opinions and assumptions. Appropriate modes of behaviour are recommended.