Pure titanium dental implant and manufacturing method thereof

Abstract

The invention relates to a pure titanium dental implant, which is characterized in that a plurality of micron-sized grooves are formed in the surface of the pure titanium dental implant, and nanotubesperpendicular to the central axis of the dental implant are arranged in the grooves. A width of each groove is 50 [mu] m, a depth of each groove is 10 [mu] m, and the distance between adjacent grooves is 50-53 [mu] m. The method comprises the following steps: firstly, a middle groove in the surface of the dental implant is manufactured; then manufacturing the nanotube is manufactured on the groove so that the surface of the top of the nanotube is an inclined plane, and a contact surface between the inclined plane and a bone tissue interface and between the inclined plane and a soft tissue interface is large; the contact surface between the nanotube and a bone tissue interface and between the nanotube and a soft tissue interface is large, the micron-sized groove can induce bone tissue cells and soft tissue cells to better grow along the grooves, and the nanotube is also beneficial to adsorption of protein, oxygen and nutrients. The size of the groove is just slightly smaller than thatof the bone marrow stromal stem cells and gingival fibroblasts which are not stretched, so that the cells cannot fall into the groove, and the cells can grow along the groove. The proliferation of gingival fibroblasts and the expression of soft tissue closure related genes can be promoted, so that the effects of osteogenesis and soft tissue closure are achieved.

Description

technical field [0001] The invention belongs to a dental implant, in particular to a pure titanium dental implant and a preparation method thereof. Background technique [0002] With the development of oral implant technology and biomaterials, implanting titanium implants in the jaw has become a routine method for restoring missing teeth. Its structure is as figure 1 As shown, it has a certain downward taper as a whole, the upper end is a smooth implant collar, the lower end is threaded, the diameter is 3.5-5mm, the length is 8-13mm, and the length of the smooth part of the neck is about 2mm. Implants are implanted in the oral cavity as a substitute for natural teeth, and they form two interfaces with oral tissues: one is the implant-bone tissue interface, and the other is the implant-soft tissue interface. The success of implantation not only requires the formation of good osseointegration, but also plays a decisive role in the formation of good soft tissue closure betwee...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of unsatisfactory osteogenic effect and soft tissue sealing effect in the existing dental implant pro...

Images