A retrospective study on pulpal tissue prognosis of avulsed permanent teeth in children

VernacularTitle:儿童恒牙全脱出牙髓组织预后的回顾性研究
Author: Jie BAI ; Man QIN ; Yuming ZHAO
Publication Type:Journal Article
Keywords: Tooth avulsion; Dental pulp necrosis; Tooth replantation; Prognosis; Child
From: Journal of Peking University(Health Sciences) 2015;(1):140-144
CountryChina
Language:Chinese
Abstract: Objective:To analyze the pulpal prognosis of replanted permanent teeth in children and to examine the associated factors .Methods:The samples consisted of 67 children with 81 avulsed perma-nent teeth treated in Peking University Hospital of Stomatology from 2000 to 2012 .Their clinical data of the replanted teeth were collected , and the follow-up period was no less than 12 months.The pulpal prognosis was classified as pulp necrosis and pulp non-necrosis .Results: The replantation within 30 minutes after avulsion led to the most significant increase in pulpal healing (P<0.05).The dental pulp of 80% ( 4/5 ) young permanent teeth replanted within 30 minutes remained vital , while all the teeth replanted after 30 minutes developed pulp necrosis within 60 days after replantation .Conclusion: The extra-alveolar period significantly affects the prognosis of pulp in immature permanent teeth after replanta-tion.When the extra-alveolar period is more than 30 minutes, the chance of pulp revascularization after replantation is very low , therefore pulp extirpation should be performed .