Dental implant with nano antibacterial structure ring at gingival penetrating part and processing method of dental implant

Abstract

The invention relates to a dental implant with a nano antibacterial structure ring at a gingival penetrating part and a processing method of the dental implant. The gingival penetrating part of the dental implant has a three-level micro-nano composite structure, and the three-level micro-nano composite structure endows the surface of the gingival penetrating part of the implant with functions of promoting adhesion and proliferation of gingival fibroblasts and gingival mesenchymal stem cells and inhibiting adhesion and growth of various oral bacteria. The preparation method comprises the following steps: firstly, injecting bioactive, wear-resistant or corrosion-resistant C, N, Ca and P elements into the gingival penetrating part of the dental implant by a plasma injection method; and then manufacturing the three-level micro-nano composite structure at the part where the elements are injected. According to the invention, the surface with the bioactive components and the three-level micro-nano composite structure is prepared at the gingival penetrating part of the implant, so that the adhesion and proliferation of the gingival fibroblasts and the gingival mesenchymal stem cells can be effectively promoted, the adhesion and growth of various oral bacteria on the implant can be inhibited, the periodontal infection risk after the implant is implanted can be effectively reduced, and the implantation success rate is improved.

Description

technical field [0001] The invention belongs to the field of oral implants, and relates to the design of the surface structure of dental implants, in particular to a dental implant with nano-structured rings that promote gingival fibroblasts and gingival mesenchymal stem cells in the transgingival part, and at the same time inhibit the adhesion of various oral bacteria body. Background technique [0002] In recent years, with the rapid development of social modernization, people pay more and more attention to oral health. As one of the important means of treating tooth defects, dental implants are more and more widely used clinically. With the deepening of clinical practice, the concern about peri-implant infection continues to increase. After the dental implant is implanted, bacteria in the oral cavity can easily enter the periodontal tissue through the joint between the gum and the implant, causing periodontitis and even failure of the implant. Therefore, there is an ur...

AI Technical Summary

Problems solved by technology

However, the existing technologies for endowing the implant surface with antibacterial ability have obvious disadvantages. For example, the chemical grafting method can improve the antibacterial performance of the implant surface, but the related technology cannot meet the quality control, sterilization and long-term requirements in the production of medical devices. Storage and other requirements, the grafted chemical coating cannot maintain long-term efficacy in the complex environment of the oral cavity, and it is difficult to pass the regulatory approval of the current medical device registration certificate

Moreover, there are currently no implants approved for marketing in China that can prevent periodontitis and accelerate the integration of the gingiva-implant interface

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