ASPECTOS CLÍNICOS, EPIDEMIOLÓGICOS, CLASSIFICATÓRIOS E TERAPÊUTICOS DA REABSORÇÃO CERVICAL EXTERNA
ASPECTOS CLÍNICOS, EPIDEMIOLÓGICOS, CLASSIFICATÓRIOS E TERAPÊUTICOS DA REABSORÇÃO CERVICAL EXTERNA
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DOI: 10.22533/at.ed.45023221210
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Palavras-chave: Reabsorção da Raiz; Tratamento do Canal Radicular; Classificação.
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Keywords: Root Resorption; Root Canal Therapy; Classification.
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Abstract: The aim of this chapter is to review the clinical, epidemiological and therapeutic characterization of External Cervical Resorption (ECR) in the literature. ECR represents a pathological phenomenon of unknown etiology that occurs from damage to the periodontal ligament and cementum, with a rare epidemiological manifestation (0.02% - 2.38%). The main predisposing factors associated with ECR have been orthodontic treatment and dental trauma. Its classification was initially based on four classes concerning the extent of dental involvement, based on the analysis of periapical radiographs. Subsequently, it was presented a three-dimensional categorization based on its histological aspects and with the addition of the description of the bone repair stage. And more recently, it was described a classification also based on cone beam computed tomography (CBCT) images. Given the diversity of manifestations of ECR, its therapeutic approaches depend on a careful assessment of the nature and possibility of access to the lesion site, which may involve surgical approaches (trans-surgical restoration, intentional reimplantation and extraction), endodontic approaches (conventional endodontic treatment and conservative therapies) and follow-up. Literature demonstrates that hypoxia seems to compose the main aspect of the pathophysiology of teeth affected by ECR. The decision for the best treatment should be based on CBCT as the current main diagnostic and planning tool, however, in the future, other more accurate and promising diagnostic methods such as the use of biomarkers in gingival crevicular fluid may contribute to greater dental survival and greater specificity in the treatment. This chapter made it possible to add knowledge about ECR, such as its rare manifestation, progressive and diverse development, as well as its hypotheses of pathophysiological mechanisms. Additionally, this descriptive reflection can contribute to guide the clinical decision of dentists, as well as stimulate ideas for new studies to fill the knowledge gaps that still exist.
- Maria Tereza Albuquerque
- Luiz Fernando Andrade Matos
- Mariana Emi Nagata
- Juliana Yuri Nagata