Load-bearing capacity of 3D-printed incisor partial-coverage crowns made from zirconia and composite.

Purpose: This study investigated the fracture resistance of 0.5-mm-thick restorations for minimally invasive therapy. Anterior partial-coverage crowns composed of three-dimensional (3D)-printed 3-mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP; Lithacon 3Y210, Lithoz) and 3D-printed composite (Varseo Smile Crown plus, Bego) were compared with a control group made from milled 3Y-TZP (Cercon ht, DentsplySirona).

Fit of anterior restorations made of 3D-printed and milled zirconia: An in-vitro study.

Objectives: To evaluate the fit of zirconia veneers made by either 3D printing or milling.

Methods: A typodont maxillary central incisor was prepared for a 0.5-mm-thick veneer and was reproduced 36 times from resin.

Strength and reliability of zirconia fabricated by additive manufacturing technology.

Objectives: To test strength and reliability of 3D printed compared to milled zirconia.

Methods: Cylindrical specimens were fabricated from milled (group G1; e.max ZirCAD LT) and from 3D printed (group G2; LithaCon 3Y 230) 3-mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP).