Histological observation of pulpless immature permanent teeth after pulp revascularization
ZHANG Ying-juan
WEN Chun-mei
ZHONG Xiao-yi
CHEN Wen-xia
Abstract：AIM:To observe the histological characteristics of dental pulp in uninfected pulpless immature permanent dog teeth after pulp revascularization.METHODS:Three 5 -month old dogs were used.The dental pulps of the right maxillary and mandibular incisors and canines of the dogs were removed and revascularized.The dental pulps of the left corresponding teeth were untreated as the controls.3 months later,the animals were sacrificed and the teeth were sections for histological observation by HE staining.RESULTS:Histological observation showed that ce-mentum-like tissue was found in the walls of all canals in experimental teeth.Most of the test teeth had a histological evidence of apical closure.94.5%of the canals(17/18)revealed new vital tissue.Inflammatory infiltration was found in 8 of the 18 experimental canals and/or at apex.The regenerated tissues in the root canals after revascularization were mainly cementum-like,bone-like and periodontal ligament-like tissue.CONCLUSION:Pulp revascularization of pulpless immature permanent teeth may promote tooth tissue regeneration in a manner of wound repair.
Keywords：pulpless immature permanent teetpulp revascularizationdog
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 649-653 )