年轻恒牙嵌入性脱位的X线追踪观察分析  

X-ray Film Follow-up Observation and Analysis of Intrusive Luxation Immature Permanent Teeth

作　　者：鄢思思 王虎[2] 刘媛媛[2] 廖岚[1] YAN Sisi;WANG Hu;LIU Yuanyuan;LIAO Lan(Department of Prosthodontics 2, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330000, China;Department of Radiological, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.)

机构地区：[1]南昌大学附属口腔医院修复二科,江西南昌330000 [2]四川大学华西口腔医院放射科,四川成都610041

出　　处：《口腔医学研究》2020年第2期177-180,共4页Journal of Oral Science Research

摘　　要：目的:通过对年轻恒牙嵌入性脱位的X线片进行回顾性研究,观察患牙复位、牙根发育和牙根吸收情况,并分析其影响因素。方法:收集2013年1月~2019年3月发生嵌入性脱位的年轻恒牙病例,分析其X线片,了解患牙复位、牙根发育及牙根吸收情况。结果:所有患牙基本复位,牙根继续发育占66.7%,发生替代性吸收占25%;嵌入程度较轻的患牙利于牙髓存活(P=0.008);自然再萌的患牙可减少替代性吸收(P=0.005);牙髓存活的患牙牙根可发育,且无替代性吸收(P<0.001)。结论:嵌入性脱位的年轻恒牙牙髓可存活,且牙根可继续发育。牙髓存活的患牙利于牙根发育、减少替代性吸收。重度嵌入的年轻恒牙可有萌出潜力。Objective:To follow up and have a detailed review of the X-ray film of intrusive luxation immature permanent teeth.And to observe tooth restoration,root development as well as root resorption,and analyze the associated factors.Methods:By collecting the diagnosis and treatment data of intrusive luxation immature permanent teeth which were admitted from January 2013 to March 2019,X-ray films,teeth restoration,and root development and resorption were analyzed.Results:All teeth were finished restoration,in which root development accounted for 66.7%and replacement resorption accounted for 25%.Mild intrusion was beneficial to reduce pulp necrosis(P=0.008)and re-eruption could reduce replacement resorption(P=0.005).The root of tooth with survived pulp continued to grow,without the sign of replacement resorption(P<0.001).Conclusion:The pulp of immature permanent tooth with intrusive luxation can survive,with its root continuing to grow.Pulp survival is beneficial for root development,reducing the replacement resorption.However,in severe intrusion immature permanent tooth,there is a potential eruption.

关 键 词：嵌入性脱位 年轻恒牙 牙根吸收 X线片 

分 类 号：R78[医药卫生—口腔医学]