恒牙外伤脱位再植后牙根外吸收的研究进展

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[中图分类号]R782.1 [文献标志码] A [doi] 10.7518/gjkq.2025034

Research progress on external root resorption after replantation of permanent teeth with traumatic avulsion ChenMengyu，LiXiangwei

Dept.oftomtologytheFfthAffiliatedHospital，unYat-senUversityZui9in

Supportedby：NaturalScienceFoundation ofGuangdongProvince （2022A1515012285）

Correspondence：Li Xiangwei，Email： lixiangwei@126.com

[Abstract]Tooth avulsion is the mostsevere typeof dental trauma，and tooth replantation is currentlythe preferred treatmentmethodfordislocatedteth.Inmostcases，patientsandtheirfamiliesfail toproperlypreservedislocatedteeth. At the time of treatment， the affected tooth has been dry and detached for more than ，and the prognosis is usually poor.Thispaperprovidesareviewoftheresearchprogressontheclasification，characteristics，pathogenesis，and pretreatment methods for tooth root resorption after complete replantation of a dislocated tooth to provide areference and guidance for exploring suitable treatment plans for delayed tooth replantation once better tooth replantation methods have been identified.

[Key Words] tooth avulsion；tooth replantation；root resorption；root surface treatment；pathogenesis

牙外伤多见于儿童和青少年，据统计，约2 5 % 的学龄儿童发生过牙外伤， 3 3 % 的成人恒牙受过外伤。（剩余15059字）