Fonseca Tavares Warley Luciano, Berto Rezende Taia Maria, Gracielle Martins da Silva Ingrid, Raimundo Corrêa José, Feitosa Henriques Luiz Carlos, Ribeiro Sobrinho Antônio Paulino
Departamento de Odontologia Restauradora, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Faculdade de Odontologia, Universidade Católica de Brasília, Brasília, Distrito Federal, Brazil.
Iran Endod J. 2019 Fall;14(4):306-312. doi: 10.22037/iej.v14i4.26018.
This study aimed to present a case series of refractory endodontic treatment leading to persistent apical periodontitis. All cases were submitted to scanning electron microscopic/energy-dispersive X-ray analysis (SEM/EDS) of the external surface of the surgically removed samples and identification of the elements present in the specimens. Carbon, oxygen and calcium were elements present in all of the cases in this study. The presence of microorganisms in close contact with the periapical surrounding tissues induced the perpetuation of the inflammation process. Despite the presence of other elements different from those normally expected in the tissues, we may not attribute any interference in the periapical response to them.
本研究旨在展示一系列因难治性牙髓治疗导致持续性根尖周炎的病例。所有病例均接受了手术切除样本外表面的扫描电子显微镜/能量色散X射线分析（SEM/EDS），并对样本中存在的元素进行了鉴定。碳、氧和钙是本研究所有病例中都存在的元素。与根尖周周围组织紧密接触的微生物的存在导致了炎症过程的持续。尽管存在一些组织中通常不会出现的其他元素，但我们不能将根尖周反应中的任何干扰归因于它们。
