Dental implant with nano bacteriostatic structure ring at transgingival part and machining method thereof

A dental implant, wherein a nano bacteriostatic structure ring is formed on a surface of a transgingival part;

• the nano bacteriostatic structure ring is a three-level micro-nano composite structure;
• the three-level micro-nano composite structure is formed by superposing a first-level structure, a second-level structure, and a third-level structure;
• wherein the second-level structure is distributed on a surface of the first-level structure, the third-level structure is distributed on a surface of the second-level structure;
• the first-level structure is a microgroove structure with a width of 20 μm to 60 μm and a depth of 1 μm to 2 μm;
• the second-level structure is composed of a stripe with a width of 100 nm to 500 nm and a height of 50 nm to 200 nm, or an array protrusion with a height of 50 nm to 200 nm;
• and
• the third-level structure is composed of a nano particle, a nano rod and a nano cone with submicron to nanometer dimensions.