The problems related to the prevention of dental anomalies are very complex. They include the health care for the expectant mother and become evident above all if one considers the long period of development during which the dentition must be protected against adverse causative effects. The developmental phases of the orofacial system from birth to the time at which the permanent anteriors begin to erupt are set forth and measures are deduced that may contribute to the reduction of malformations. It is emphasized that orthodontic prophylaxis will be efficient only if the causative relationships, the conditions of development and the efficiency of the measures taken are realized correctly and evaluated according to high standards.
与预防牙齿异常相关的问题非常复杂。这些问题包括对准妈妈的医疗保健，并且如果考虑到牙列必须在很长的发育时期内受到保护以免受不利致病因素影响的话，问题就尤为明显。阐述了从出生到恒牙前牙开始萌出这段时间口面部系统的发育阶段，并推导了可能有助于减少畸形的措施。需要强调的是，只有正确认识致病关系、发育条件以及所采取措施的效果，并按照高标准进行评估，正畸预防才会有效。
