Immediate replantation of maxillary incisors in rats: effefts of tooth immersion in sodium fluoride and subsequent removal of the periodontal ligament / Reimplante imediato de incisivos de maxilar em ratos: efeito da imersão do dente em fluoreto de sódio e subsequente remoção do ligamento periodontal

ABSTRACT

The advantages and disadvantages of maintaining the periodontal ligament (PDL) in immediate replantation as well as chemical treatment of the root surface have been a matter of discussion because the vitality of such tissue in surgery is always questioned. This study evaluated the effects of conserving the tooth in sodium fluoride and the removal of the PDL before replantation of incisors in rats. There was more cementum-dentin resorption, in the group with the PDL. The group without the PDL showed more discreet resorption, repair occurred through the newly formed bone tissue in the PDL space and ankylosis was more extensive than in the group with the PDL