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目的了解邯郸地区乳牙融合牙的发生情况及分布特点,探讨乳牙融合牙对继承恒牙的影响。方法采用横断面研究方法,对邯郸市十所幼儿园3982名2～6岁儿童进行口腔检查,对其中86例乳牙融合牙患儿进行临床及X线检查,分析继承恒牙的缺失情况。结果 3982名儿童中融合牙发生率为2.16%。男女性别之间无统计差异;融合牙主要发生于下颌的前牙区。下颌占91.86%,上颌占8.14%,在86例融合牙患儿中,单侧型占80.23%,两侧型占19.77%。继承恒牙缺失率为60.94%,其中AB融合型与BC融合型发生继承恒牙缺失率无统计学意义(P>0.05)。结论乳牙融合牙有一定发生率,乳牙融合牙对继承恒牙及恒牙列有影响,儿童口腔科医生应予重视并及时处理,预防各种口腔危害的发生。
Objective To understand the occurrence and distribution characteristics of deciduous teeth in Handan and discuss the effect of deciduous teeth on the succession of permanent teeth. Methods A total of 3982 children aged 2-6 years old from 10 nurseries in Handan City were examined by the method of cross-sectional study. The clinical and X-ray examination of 86 cases of deciduous teeth were performed to analyze the loss of inherited permanent teeth. Results The prevalence of fused teeth in 3,982 children was 2.16%. There was no statistical difference between men and women; fusion teeth mainly occurred in the anterior teeth area of the mandible. The jaws accounted for 91.86%, the maxillary accounted for 8.14%, 86 cases of fusion teeth children, unilateral type accounted for 80.23%, bilateral accounted for 19.77%. Inheritance of permanent teeth missing rate was 60.94%, of which AB fusion type and BC fusion inherited loss of permanent teeth was not statistically significant (P> 0.05). Conclusion There is a certain incidence rate of deciduous teeth fusion teeth, deciduous teeth fusion teeth on the succession of permanent teeth and permanent dentition have an impact, children stomatologists should pay attention to and promptly deal with the prevention of various oral hazards.