错畸形是常见的口腔疾病之一。近年来，随着物质生活水平的不断提高，错畸形的防治工作日益受到人们的重视。为了解我市青少年错畸形患病情况和规律，为口腔保健工作提供临床资料，我们于1996年10－11月间对合肥市区部分中学的初中学生进行了错路畸形的流行病学调查。l对象与方 Malformation is one of the common oral diseases. In recent years, with the continuous improvement of material living standards, the prevention and control of malformations has been paid more and more attention by people. In order to understand the prevalence of adolescent malformations and laws in our city and to provide clinical data for oral health care work, we conducted a survey of the misdiagnosis epidemics of middle school students in some middle schools in Hefei from October to November in 1996. l object and party