Restoration of endodontically treated teeth with prefabricated posts
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The restoration of endodontically treated teeth is a common task for the clinician. After completing endodontic treatment the tooth must be restored to fulfill clinical function. The necessity of restoration of an endodontically treated tooth must be taken under consideration even before starting endodontic procedure. Endodontically treated teeth have usually lost a major part of dental tissues due to caries and endodontic procedures. The use of a root post and core does not contribute to increased mechanical stability, as it was believed in the past. On the contrary the use of root posts may further weaken the existing tooth structure because of further dentine removable. The main clinical objective in the use of posts and cores is to ensure proper retention for a core material in order to allow prosthetic restoration of the remaining tooth. Endodontic posts are classified according to their fabrication procedure to refabricated and individually constructed. From a material point of view they can be divided to metallic, ceramic, carbon-fiber and glass-fiber posts. Another classification of the prefabricated root posts is based on the shape of the posts as conical, cylindrical etc. According to the mode of retention in the root dental walls posts can be classified as cement-retained or screw-retained. The aim of this article is to emphasize the factors that must be considered in the restoration of endodontically treated teeth and present the clinical stages in three clinical cases.
Dentistry not elsewhere classified