The invention relates to a
ceramic abutment for a
dental implant. The
ceramic abutment comprises a substrate with a countersunk head through hole, wherein a central countersunk head screw of which the external threads are matched with an
implant threaded hole is formed in the countersunk head through hole; a
reducer connection ring is arranged at the lower end of the substrate; a bulged edge which extends outwards is arranged on the middle part of the substrate; a
metal bottom layer is wrapped on an excircle of the upper part of the substrate; the bottom end of the
metal bottom layer expands outwards along the upper surface of the bulged edge; a
casting ceramic layer is wrapped outside the
metal bottom layer; and the appearance of the
casting ceramic layer is matched with that of a concave hole at the bottom of a ceramic crown. A manufacturing method comprises the following steps of: manufacturing a metal bottom layer
wax mold and a
sprue on the substrate, fixing the metal bottom layer
wax mold and the
sprue in a
casting ring, and pouring embedding material mixed liquid into the casting ring for embedding;
roasting an embedding body, melting the
wax mold, pouring wax liquid, melting a
metal alloy, pouring the
molten metal alloy into an embedding
body cavity from the
sprue, and clearing an embedding material after casting to obtain the substrate wrapped with the metal bottom layer; manufacturing a wax mold of which the shape is matched with that of the casting ceramic layer and a sprue, fixing the wax mold and the sprue in the casting ring, and pouring the embedding material mixed liquid into the casting ring for embedding;
roasting an embedding body, melting the wax mold, pouring wax liquid, melting casting ceramic, pouring the molten casting ceramic into a cavity of the roasted embedding body from the sprue, and clearing an embedding material after casting to obtain an initial finished product; and
polishing the initial finished product and modifying.