Etiological factors in the development of dental anomalies are divided into congenital and acquired causes. Congenital anomalies of intrauterine development, hereditary syndromes, defects in the development of the dental-maxillary system, past infections during pregnancy. Acquired - transferred diseases in the childhood period, violations of nasal breathing, artificial feeding, early removal of milk teeth, bad habits (sucking nipples, fingers, lips, objects), one-sided chewing, bruxism. All these problems can be diagnosed in a child at an early age, because problems of breastfeeding, neurological manifestations, such as poor sleep, regurgitation, restless behavior, are signs of a violation of the correct development of the skull and the position of the bones of the facial skeleton. These manifestations after childbirth can be revealed by osteopaths and corrected by soft manual techniques. But parents will not turn to a dentist with such a question, and not everyone knows that with these problems you need to seek help from an osteopath. And after all, it is in such children, without treatment, that the bite anomalies will develop, as they will have a skeletal cause - the wrong position of the jaws relative to the base of the skull. In this connection, pediatricians and pediatric dentists, those doctors who first see and examine children at the regular medical check-up, when enrolled in preschool children’s institutions, should understand and see the diagnostic signs of a child’s skull deformity, improper swallowing, and oral breathing, to detect harmful habits and timely refer to the appropriate specialists.