OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int J Periodontics Restorative Dent JT - International Journal of Periodontics & Restorative Dentistry IS - 1945-3388 (Electronic) IS - 0198-7569 (Print) IP - 1 VI - 41 PST - ppublish DP - 2021 PG - 135-140 LA - en TI - Computer-Aided Crown Design Using Digital Scanning Technology for Immediate Postextraction Single-Implant Restorations Supported by Conical Indexed Abutments FAU - Albiero, Alberto Maria AU - Albiero A FAU - Benato, Renato AU - Benato R FAU - Momic, Stefano AU - Momic S FAU - Degidi, Marco AU - Degidi M CN - AB - Conical retention with antirotational features (Acuris abutment) has been recently proposed for restorations of healed single implants. The conometric abutments use the retentive force of the coping-abutment system to retain the prosthetic crown without the use of cement or screws. This retentive force must be overcome to obtain detachment of the relined provisional crown in immediate restorations. The present article describes the use of digital scanning technology to virtually plan computer-guided implant placement and restoration with conical indexed abutments in postextraction sites. Importing the scan data of both matrix and patrix abutments that are seated on the definitive cast into the computer-aided design software provides a workflow to preoperatively mill a crown that perfectly fits the abutment into the postextraction site. This technique simplifies the provisional crown relining onto the conometric indexed abutment and reduces the intraoperative time. AID - 967535