Resumo

KIRCHHOFF, Alison Luís; VIAPIANA, Raqueli  e  RIBEIRO, Rodrigo Gonçalves. Periapical repercussion of pulpal necrosis. RGO, Rev. gaúch. odontol. (Online) [online]. 2013, vol.61, suppl.1, pp. 469-475. ISSN 1981-8637.

Dental pulp illnesses are a consequence of the actions of mainly bacteriological, but also chemical and physical factors. The results of these actions can be reveled after short or long time periods, showing characteristic signals and symptoms of each pathology. Pulp necrosis occurs when the pulp's vital functions are interrupted, starting a degenerative process. If this degenerative process is not promptly treated it will result in bacterial dissemination into the alveolar bone producing periapical bone lesions. These periapical lesions related to pulp necrosis result from the same etiologic factors, but they present particular clinical and radiographical features and diverse symptoms that are important to differentiate the diagnosis that will determine the treatment. According to the clinical and radiographical features, the periapical lesions can be classified as follows: Apical pericementitis, Periapical Abscess, Periapical Granuloma, Periapical Cyst and Condensing Osteitis. The objective of this study was to expose and discuss, through a review, the etiological factors and histological, clinical and radiographical features of the periapical illnesses resulting from necrosis.

Palavras-chave : Periapical abscess.; Periapical radicular.; Endodontics.; Periapical granuloma.; Dental pulp necrosis.; Periapical periodontitis..