title: SEM evaluation of the apical external root surface of teeth with chronic periapical lesion.
abstract: The aim is to verify, under scanning electron microscopy, the occurrence of apical root resorption in anterior and posterior teeth with chronic and radiographically visible periapical lesions. Thirty-two teeth were extracted, the apical thirds (n = 39) were removed, and prepared to analyse the external apical root surface. All specimens presented irregular areas of root resorption with different depths, located mainly around the apical foramen. Teeth with chronic periapical lesions present areas of external apical root resorption with irregular surface and different depths located mainly around the apical foramen. Root resorptions may show different configurations and destroy the apical root structure more or less extensively.
authors: School of Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. wtfelippe@hotmail.com
authors: Wilson Tadeu
authors: WT
authors: Felippe
authors: Maica Fritzen
authors: MF
authors: Ruschel
authors: Gabriela Santos
authors: GS
authors: Felippe
authors: Maria Helena
authors: MH
authors: Pozzobon
authors: Mara Cristina Santos
authors: MC
authors: Felippe
mesh_terms: D002908:Chronic Disease; D003739:Dental Cementum / Q000648:ultrastructure; D003804:Dentin / Q000648:ultrastructure; D004577:Electron Probe Microanalysis; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010483:Periapical Diseases / Q000473:pathology*; D012391:Root Resorption / Q000473:pathology; D019227:Tooth Apex / Q000648:ultrastructure*; D014092:Tooth Root / Q000648:ultrastructure*