Abstract
ABSTRACTEndodontically treated teeth may be moved, as endodontic treatment is not a contraindication for orthodontic treatment. Apical periodontal repair begins when the periapical or pulp lesion has completely resolved. This may happen immediately after treatment if the filling material causes little or no irritation of periapical tissues, and particularly if the material is fully contained within the canal. When it leaks, a foreign body granuloma forms and persists for some months or indefinitely, depending on the composition of the filling material. Materials containing calcium hydroxide with no resin components undergo phagocytosis and disappear in some months, as macrophages gradually remove them. Materials containing resins, silicone, ionomers, zinc oxide-eugenol, bioceramics or gutta-percha remain in the site and induce the formation of foreign body granulomas. Although this does not preclude tooth movement, patients should be followed up every three months using periapical images to control the position of the material in relation to the tooth apex. “Pseudo” overfilling may be avoided if permanent filling is delayed until the time when orthodontic treatment is completed.
Highlights
Os dentes tratados endodonticamente podem ser movimentados, e não representam contraindicação para o tratamento ortodôntico
One of the issues that raises the most questions and uncertainties in the orthodontic and endodontic clinical practice is the time at which a tooth may be moved after the completion of an endodontic procedure
Induction of cellular stress in the periodontal ligament by orthodontic forces promotes a greater release of mediators, those associated with bone resorption, such as some cytokines and prostaglandins
Summary
Orthodontic forces, very differently from the forces of occlusion and dental trauma, are characteristically very light, dissipating and applied to tissues slowly. Even the orthodontic forces classified as heavy, severe or intense are lighter than those of dental and occlusal trauma. Occlusal forces are abrupt, have moderate intensity and short duration, but are very repetitive. 2. Forces of dental trauma, which are very intense, abrupt and have an extremely short duration, are highly damaging to periodontal and tooth tissues. 3. Orthodontic forces are not comparable with those of occlusal and dental trauma in all aspects and parameters. Orthodontic forces are not comparable with those of occlusal and dental trauma in all aspects and parameters They are markedly lighter and dissipating, even though they might be called heavy or intense in an orthodontic context or environment
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