Antibacterial dental implant and preparation method thereof

The invention provides an antibacterial dental implant and a preparation method thereof. The antibacterial dental implant comprises an abutment and a body part which are fixedly connected, the abutment is made of a porous material; the porosity of the abutment is 20 to 40 percent; and the aperture of the base station is 10-200 [mu] m. The preparation method comprises the following steps: (1) respectively and independently placing abutment mixed powder and body mixed powder in a mold, carrying out press molding, and then carrying out machining to obtain a dental implant blank; and (2) carrying out sintering treatment on the dental implant blank, and then sequentially carrying out cooling treatment and polishing treatment to obtain the antibacterial dental implant. The structure of the antibacterial dental implant provided by the invention is divided into the abutment and the body part and is made of zirconium oxide, the abutment part is of a porous structure, and the dental implant is of a compact structure, s