CAJ | 학술논문

目的：了解上海市松江区10~16岁中小学生恒牙畸形中央尖的患病情况和分布特点。方法2013年10月~2013年12月对上海市松江区10所学校9184名10~16岁中小学生进行恒牙畸形中央尖调查，诊断依据为《牙体牙髓病学》(第3版)。结果恒牙畸形中央尖的患病率为4.95%(455/9184)，女性(5.51%)显著高于男性(4.46%)，差异有统计学意义(P<0.05)；总患牙数为946颗，下颌多于上颌，左右无明显差异；右下颌恒第二前磨牙畸形中央尖发生率最高(2.43%)，其次为左下颌恒第二前磨牙(2.36%)；此外，下颌恒尖牙、上颌恒侧切牙、右下颌恒中切牙各检出畸形中央尖7、11、1颗。结论上海市松江区中小学生恒牙畸形中央尖的患病率较高，当地牙防部门应当予以重视并积极开展孕期保健工作，同时联合学校和家长做好该类畸形牙早期发现、早期预防性治疗工作，减少或避免畸形中央尖及其并发症的发生。
목적：료해상해시송강구10~16세중소학생항아기형중앙첨적환병정황화분포특점。방법2013년10월~2013년12월대상해시송강구10소학교9184명10~16세중소학생진행항아기형중앙첨조사，진단의거위《아체아수병학》(제3판)。결과항아기형중앙첨적환병솔위4.95%(455/9184)，녀성(5.51%)현저고우남성(4.46%)，차이유통계학의의(P<0.05)；총환아수위946과，하합다우상합，좌우무명현차이；우하합항제이전마아기형중앙첨발생솔최고(2.43%)，기차위좌하합항제이전마아(2.36%)；차외，하합항첨아、상합항측절아、우하합항중절아각검출기형중앙첨7、11、1과。결론상해시송강구중소학생항아기형중앙첨적환병솔교고，당지아방부문응당여이중시병적겁개전잉기보건공작，동시연합학교화가장주호해류기형아조기발현、조기예방성치료공작，감소혹피면기형중앙첨급기병발증적발생。
Objective To investigate the prevalence and distribution of permanent teeth with dens evaginatus in the primary and secondary school students aged from 10 to 16 years old in the Songjiang District of Shanghai City. Meth-ods A survey of permanent teeth with dens evaginatus for 9184 primary and secondary school students who were be-tween 10 to 16 years old in 10 schools was conducted during October 2013 to December 2013.The diagnosis of dens e-vaginatus was based on Operative Dentistry and Endodontics of the third edition. Results The prevalence of dens evagi-natus in permanent teeth was 4.95% (455/9184), and female was significantly higher than male (5.51% vs 4.46%, P<0.05). A total number of permanent teeth with dens evaginatus was 946. The number of maxillary abnormal teeth was less than mandibular abnormal teeth, while there was no differences between left and right side. Second premolar in the right mandibula was the most common (2.43%), followed by second premolar in the left mandibula (2.36%). Further-more, mandibular canine, maxillary lateral incisor and right mandibular incisor were found 11, 7 and 1 cases, respec-tively. Conclusion The prevalence of permanent teeth with dens evaginatus in the Songjiang District is high, so dental centers should work with teachers and parents to reduce or prevent the incidence of dens evaginatus and its complica-tion by pregnancy health, early discovery and prophylactic treatment.