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目的:了解4～6岁幼儿乳前牙重度内倾型深覆发病及与人工喂养的关系。方法:选取4～6岁幼儿637名,检查乳前牙覆,计算乳前牙重度内倾型深覆发病率;以配对问卷方式调查幼儿喂养情况,并进行人工喂养相对危险度分析。结果:4～6岁幼儿乳前牙重度内倾型深覆发病率为5.81%,是幼儿常见牙畸形,人工喂养方式与乳前牙重度内倾型深覆有一定关系。结论:人工喂养为乳前牙重度内倾型深覆的后天致病因素之一。
Objective: To study the relationship between the incidence of severe over-lying deep overburns in 4 ~ 6-year-old children and artificial feeding. Methods: 637 children from 4 to 6 years old were selected to examine the incidence of severe overvintage in the anterior teeth of prenatal teeth. The feeding of young children was investigated by questionnaire and the relative risk of artificial feeding was analyzed. Results: The prevalence of severe over-tilt type deep overburden in children aged 4 ~ 6 years old was 5.81%. It was a common deformity in children. CONCLUSION: Artificial feeding is one of the pathogenetic factors of acquired poliomyelitis in infants with severe ITP.