OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int J Prosthodont JT - The International Journal of Prosthodontics IS - 1942-4426 (Electronic) IS - 0893-2174 (Print) IP - 6 VI - 35 PST - ppublish DP - 2022 PG - 815-823 LA - en TI - A Total of 1,132 All-Ceramic Single-Tooth Restorations Show Acceptable Survival Rates up to 15 Years in a Non-University Setting LID - 10.11607/ijp.7986 [doi] FAU - Offer, Kathinka AU - Offer K FAU - Kohorst, Philipp AU - Kohorst P FAU - Linsen, Sabine AU - Linsen S CN - AB - Purpose: To evaluate the long-term survival of IPS Empress 2 and IPS e.max (Ivoclar Vivadent) restorations in a non-university setting. Materials and methods: A retrospective study design was used to evaluate the survival rate of 1,132 Empress 2 and IPS e.max restorations placed in 251 patients with regard to patient age, gender, tooth type, tooth vitality, material, restoration form (inlay vs partial crown vs crown), cementation mode (self-adhesive vs non-self-adhesive), and bruxism activity. Kaplan-Meier and regression analyses were used for statistical analyses. Results: Of the 1,132 restorations, a total of 15 (IPS e.max = 3, Empress 2 = 12) failed. The overall survival rate for all restorations was 98.7% after 15.4 years. A significantly reduced survival rate was found for nonvital teeth (P = .002), patient age > 60 years (P = .002), crowns (vs inlays and partial crowns; P = .002), and self-adhesive resin materials (P = .018). Conclusion: Within the limitations of this study, glass-ceramic single-tooth restorations made of Empress 2 and IPS e.max show good survival rates up to a period of 15 years. AID - 3822201