CHAIRSIDE ESTHETIC REHABILITATION OF ENDODONTICALLY TREATED MAXILLARY ANTERIOR TEETH WITH EXTENSIVE LOSS OF TOOTH STRUCTURE USING CAD/CAM SYSTEM: REPORT OF TWO CASES

Post-core restorations supported by root canals have been generally used for decades in rehabilitation of endodontically treated teeth have insufficient tooth structure. success of post-core restorations are closely related with post and restorative materials as well as application techniques of the restorations. with the recent development of computer aided design and computer aided manufacturing (cad/cam) technology, post-core retorations can be chairside and one-piece which fabricated from different restorative materials. using new different materials which can be milled in cad/cam devices for rehabilitation of post-core restorations is important for the success of these restorations. this technology enables the fabrication of low cost, time consuming and accurate fitted restorations which can be fabricated to ensure the long term service. in this clinical report, the restoration of endodontically treated anterior maxillary teeth with extensive loss with chairside cad/cam system. in the first case, impressions which were taken with conventional methods from the upper right central tooth was scanned in extraoral scanner and transferred to cad software. post-core and crown restorations were separately designed in virtual models, fabricated from lithium disilicate material and cemented. in the second case, digital impressions which were taken with intraoral scanner from the upper left lateral and adjacent teeth. post-core was fabricated from resin nanoceramic and the crown was fabricated from lithium disilicate material. in both two cases, time-consuming and satisfactory chairside restorations were fabricated using different cad/cam methods and materials. no complication was observed during the 1-year follow-up and the patients were satisfied.