Stomatology(8):717-7217172023年8月第43卷第8期口腔医学815颗儿童上颌多生牙的回顾性分析陈云，曹灵'，王雅欣²，于剑南[摘要]目的研究儿童上颌前部多生牙的三维特征，分析其对恒牙的影响。方法基于临床及CBCT资料回顾性分析594例儿童815颗上颌前部多生牙病例的年龄、性别、部位、数目、形态、萌出情况及对恒前牙的影响。结果594例患者共815颗多生牙，患者的平均年龄7.98岁，男女比例为3.37：1；上颌前部多生牙中以1颗多生牙最常见（63.97%）；形态以锥形多见；位置分布上，正中多生牙84.54%，冠在聘侧占大部分（78.28%）；方向上440颗倒置（53.99%），其次是正向。儿童上颌前部多生牙大部分未萌或阻生，已萌多生牙占20.61%。对恒前牙影响中，多生牙中错验畸形555例，发生率高达68.10%，囊性变23例，恒牙牙根吸收14例。结论儿童上颌前牙区多生牙易引发错验畸形，需及时拔除。【关键词］多生牙；CBCT;错验畸形；回顾性分析[中图分类号]R783.5【文献标识码]1A[文章编号]1003-9872(2023)08-0717-05[doi]10.13591/j.cnki.kqyx.2023.08.009Aretrospectivestudyon815maxillarysupernumeraryteethinchildrenCHENYun,CAOLing,WANGYaxin,YUJiannan.(DepartmentofPediatricandPreventiveDentistry,TheAffiliatedStomatologicalHos-pitalofNanjingMedicalUniversity,JiangsuProvinceKeyLaboratoryofOralDiseases,JiangsuProvinceEngineeringResearchCenterofStomatologicalTranslationalMedicine,Nanjing210029,China)Abstract:ObjectiveTostudythethree-dimensionalcharacteristicsofanteriormaxillarysupernumeraryteethinchildrenandtheireffectsonpermanentteeth.MethodsBasedonclinicalandCBCTdata,retrospectiveanalysiswasconductedinaspectsoftheage,gender,location,number,shape,eruptionandeffectonpermanentanteriorteethof815maxillarysupernumeraryteethfrom594chil-dren.ResultsTherewere815supernumeraryteethintheanteriormaxillain594children,whoseaverageagewas7.98,andthemaletofemaleratiowas3.37:1.Onesupernumerarytoothwasmostcommon(63.97%).Conicalshapewasmuchmorethanothers;84.54%amongthemweremesiodens,andthecrownslocatedatthepalatalsideaccountedfor78.28%.Atotalof440supernumeraryteethwereininverteddirection(53.99%).Mostsupernumeraryteethwereuneruptedorimpacted,andtheeruptionratewas20.61%.Therewere555super...
