A single-piece ceramic dental implant is provided, with a distal enossal threaded region, a gingival intermediate region and a proximal region. A thread is arranged in the threaded region and has a core radius and an outer radius of the thread. A proximally accessible insertion geometry for screwing the threaded region into a bone tissue is arranged in the intermediate region, wherein the insertion geometry is designed as a non-rotationally-symmetrical outer structure. The proximal region includes at least one structure for fastening a single-part or multi-part attachment element. An implant diameter in every section perpendicular to the implant axis, in the intermediate region is equal to or larger than the double of the core radius of the thread. Thus each implant diameter through the insertion geometry is equal to or larger than the double of the core radius of the thread.
