Today, patients are increasingly interested in metal-free restoration. Restoration of an anterior root-filled tooth with little remaining coronal tooth tissue can use a post to retain a core enabling definitive restoration. Post material has been, until recently, primarily metal--be it cast or prefabricated. Currently, fiber-posts are promoted as being advantageous due to a favorable failure mechanism which may protect the root from fracture [1]. Endodontic posts are necessary to provide adequate retention and support when no sufficient remaining structure is available to retain the core. There are different materials and techniques to construct post-andcore, but there is no consensus about which one promotes better stress distribution on the remaining tooth structure [2]. The new ceramics used for final crowns by CAD/CAM technique associate aesthetic and good mechanical qualities, biocompatibility, and accurate marginal fit and low invasive preparation. Abstract
Esthetic Restoration of Two Severely Decayed Maxillary
Conventional techniques for construction accurate fixed prostheses have been unsuccessful in producing a prosthesis that can be inserted without intraoral occlusal adjustment. Successful oral rehabilitation requires precise fixed prostheses that are harmonious within occlusion and the stomatognathic system.
The fracture of anterior teeth can be traumatic to the patient both psychologically and socially. A fractured anterior short tooth that requires complete coverage restorations needs a metal post to ensure retention. The successful treatment of an anterior root canal treated fractured tooth depends not only on good endodontic therapy, but also on good prosthetic reconstruction of the tooth.
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