3D-printed dental restoration precursor with support element and process of production

A 3d-printed dental restoration precursor comprising:

• at least one crown unit for a posterior or an anterior tooth, the at least one crown unit having an outer surface and an inner surface, and
• a support element extending from a build platform, the support element comprising:
• a fixation section having a first width, and a first portion having a second width greater than the first width, the support element configured to interface with the at least one crown unit at a connection region on the at least one crown unit,
• the at least one crown unit having a shape:
• for the posterior tooth, the shape comprising an occlusal top surface and side surfaces extending therefrom, or
• for the anterior tooth, the shape comprising an incisal top edge and side surfaces extending therefrom, wherein the side surfaces of the at least one crown unit are connected to each other and form a crown cervix with a crown margin surrounding a crown opening,
• the occlusal top surface or the incisal top edge defining a plane x, the plane x being essentially perpendicular to the side surfaces,
• the support element having an orientation z directed through a longitudinal dimension and geometric center of both the fixation section and the first portion of the support element, the orientation z being essentially perpendicular to the build platform,
• the support element being connected through the fixation section to the outer surface of the crown only in a region adjacent to the occlusal top surface or incisal top edge, at an angle being in a range of 20 to 80° formed by the orientation z of the support element and plane x,
• wherein the support element and the at least one crown unit each are formed from a radiation curable resin material.