Healing of a tooth with an overinstrumented apex, extensive transportation and periapical lesion using a 5 mm calcium hydroxide apical plug: an 8-year follow-up report

Brazilian Dental Journal

Ronaldo Araújo Souza²  Yara T. Corrêa Silva-sousa²  Suely Colombo¹  Maurício Lago¹  Marco Antonio Hungaro Duarte¹  Jesus Djalma Pécora¹ 

[1] ,University of Ribeirão Preto Dental School Graduate DepartmentRibeirão Preto SP ,Brazil

关键词: necrotic pulp;    open apex;    overinstrumentation;    apical plug;   

DOI  :  10.1590/S0103-64402012000500024

来源: SciELO

【 摘 要 】

Besides the risk of filling material extrusion throughout the apex, a satisfactory apical seal can be difficult to achieve in canals with open apices or iatrogenic enlargements of the apical constriction. These situations pose a challenge to root canal filling. This paper describes the root canal filling of a maxillary right canine with an overinstrumented apex, complete loss of the apical stop, extensive canal transportation and apical periodontitis. A 5 mm calcium hydroxide apical plug was placed before root canal filling. The plug was made by soaking paper points with saline, dipping the points in calcium hydroxide powder and then applying it to the apex several times, until a consistent apical plug was obtained. The canal was then irrigated with saline in order to remove any residual calcium hydroxide from the root canal walls, dried with paper points and obturated with an inverted #80 gutta-percha cone and zinc oxide-eugenol based sealer by the lateral condensation technique. An 8-year radiographic follow-up showed formation of mineralized tissue sealing the apical foramen, apical remodeling and no signs of apical periodontitis.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License