上颌单侧磨牙区非综合征性多生牙1例报告及文献复习  

Non-syndromic supernumerary teeth in maxillary unilateralmolars area:A case report and literature review

作　　者：李欣怡 张可鹏 刘心雨 张皓岩 胡志强 朱宪春[1] LI Xinyi;ZHANG Kepeng;LIU Xinyu;ZHANG Haoyan;HU Zhiqiang;ZHU Xianchun(Department of Orthodontics,Stomatology Hospital,Jilin University,Changchun 130021,China)

机构地区：[1]吉林大学口腔医院正畸科,吉林长春130021

出　　处：《吉林大学学报（医学版）》2023年第6期1610-1614,共5页Journal of Jilin University：Medicine Edition

基　　金：吉林省卫健委地方标准项目(DB22/T3251-2021)。

摘　　要：目的:分析非综合征性多生牙(NSMST)患者的临床资料,探讨多生牙可能的发生机制、诊断标准和治疗方法,提高临床医生对该病的认识。方法:收集1例NSMST患者的临床资料,根据专科检查和相关文献回顾,分析多生牙的发生原因、诊断要点和治疗原则。结果:患者,男性,19岁,因自觉颜面左右不对称就诊,否认系统性疾病和遗传病史。口内检查可见4颗多生牙,均为磨牙形态;锥形束计算机断层扫描(CBCT)显示已萌出的4颗多生牙牙根发育完整,另外18腭侧根方可见1颗埋伏多生牙,似前磨牙形态且牙根发育完成,其远中根方见1个牙冠钙化影,未见牙根形成。X线头影测量,SNB角较正常值小,下颌骨发育不足;FH-MP角较大,患者下颌平面陡,高角型。上颌右侧磨牙区共6颗多生牙,诊断为NSMST。建议转外科拔除多生牙,采用正畸-正颌联合治疗,恢复正常面型和牙列形态。患者因个人原因未行治疗。结论:NSMST患者临床上需通过影像学检查确诊,治疗方法以手术拔除为主,应在早期发现和治疗以减小对患者颜面部及牙列的影响。Objective:To analyze the clinical data of the patients with non-syndromic supernumerary teeth(NSMST),and to explore the possible mechanism of occurrence of supernumerary teeth,diagnostic criteria,and treatment method,and to enhance the comprehension of the clinicians about this disease.Methods:The clinical data of one patient with NSMST were collected.Based on the specialist examination and relevant literature review results,the causes,diagnostic points and treatment principles of the supernumerary teeth were analysed.Results:The patient,a 19-year-old male,checked in the clinic due to his subjective feeling of facial asymmetry,denying any systemic disease or history of genetic disorders.The intraoral examination results showed 4 supernumerary teeth,all of them showed the resembling molars morphology.The cone beam CT(CBCT)results showed that the roots of 4 erupted supernumerary teeth were fully developed.One impacted supernumerary tooth could be seen on the palatal root side of tooth 18,resembling a premolar,with fully developed roots,and there was a calcified crown shadow being observed distal mesially,and no root formation could be seen.The X-ray cephalometric analysis results showed a smaller SNB angle than the normal value,indicating the deficiency in the mandibular development;a larger FH-MP angle indicated a steep mandibular plane and high-angle pattern.There were a total of6 supernumerary teeth on the right maxillary molar area,so the diagnosis was NSMST.The surgicalextraction of the supernumerary teeth was recommended,followed by combined orthognathic-orthodontictreatment to restore normal facial morphology and dental arch form.The patient did not undergo treatmentdue to his personal reasons.Conclusion:The NSMST patients needs to be definitely diagnosed through theimaging examinations clinically,the surgical removal is the principle treatment method,and earlydiscovery and treatment can minimise the impact on the patient’s facial region and dentition.

关 键 词：非综合征性多生牙 多生牙 磨牙区 成人 牙列 

分 类 号：R783.5[医药卫生—口腔医学]