牙畸形是口腔三大主要疾病之一,严重损害人们的心理生理健康。目前,国内外对错畸形的调查尚缺乏一种可靠、客观的统一标准。由于采用的调查标准不完全相同或调查方法不一致,对正确了解错畸形的患病率、发病率及发病规律产生一定的影响。本综述针对错畸形调查中存在的一 Teeth deformity is one of the three major diseases of the oral cavity, seriously impairing people's mental and physical health. At present, there is a lack of a reliable and objective standard for the investigation of malformations at home and abroad. As the survey standards used are not the same or the survey method is inconsistent, correct understanding of the incidence of malformation deformity, morbidity and incidence have a certain impact. This review addresses one of the misconception deformities investigated