Abstract
ABSTRACTIntroduction: The epithelial rests of Malassez (ERM) represent a group of cells in the periodontal ligament classically consisting of latent or quiescent structures associated with pathological processes. However, recent evidence shows that these structures cannot be considered only as cellular debris. The ERM is a major tissue structure, with functions in maintaining the homeostasis of periodontal tissue, including the maintenance of orthodontic movement. Objective:The present literature review aims at presenting the potential functions of ERM, with emphasis on orthodontic movement and the functional structure of the periodontium. Conclusion: ERM cells have a functional activity in modulation of orthodontic movement, trough their potential for differentiation, maintenance functions and the capacity of repairing periodontium.
Highlights
The epithelial rests of Malassez (ERM) represent a group of cells in the periodontal ligament classically consisting of latent or quiescent structures associated with pathological processes
Over the last 50 years, studies have gradually revealed the participation of ERM in the synthesis of mediators linked to the maintenance of periodontal homeostasis.[1,2]
The functional aspects of ERM are affected by mechanical forces in periodontal tissues during orthodontic tooth movement
Summary
The epithelial rests of Malassez (ERM) represent a group of cells in the periodontal ligament classically consisting of latent or quiescent structures associated with pathological processes. Introdução: os remanescentes epiteliais de Malassez (REM) se configuram como um grupo de células epiteliais presentes no ligamento periodontal, classicamente consideradas estruturas latentes ou quiescentes, associadas a processos patológicos. Entretanto, ao longo dos anos, esse paradigma vem sendo rompido e hoje não mais são consideradas apenas como restos celulares, mas sim uma importante estrutura tecidual, com funções na manutenção da homeostase do periodonto, inclusive durante a movimentação ortodôntica. Objetivo: na presente revisão da literatura, buscou-se apresentar as funções dessas estruturas, com ênfase nelas durante a movimentação ortodôntica, rompendo o conceito errôneo de que são meros restos celulares, e defendendo sua compreensão como uma estrutura funcional do periodonto. » Patients displayed in this article previously approved the use of their facial and intraoral photographs
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