PEEK abutment with nanoneedle interface and preparation method of PEEK abutment

Abstract

Aiming at the problem that the existing implant abutment surface modification mode is difficult to simultaneously promote soft tissue closure and resist bacteria, the invention provides the PEEK abutment with the nanoneedle interface, and the PEEK abutment comprises an abutment, and a metal coating and an FHA coating which sequentially cover the abutment, wherein the abutment is a PEEK abutment, and the metal coating is at least one of magnesium alloy coatings; the surface of the FHA coating is of a nano needle-shaped structure. Meanwhile, the invention provides a preparation method of the PEEK abutment with the nanoneedle interface, a metal coating which is uniform, high in adhesive force and high in film forming rate is prepared by using a magnetron sputtering technology, and an FHA coating with a nanoneedle structure is prepared by matching with a hydrothermal synthesis technology. A bionic interface with antibacterial and soft tissue sealing promotion functions is established on the surface of the PEEK abutment, and the antibacterial effect and soft tissue sealing capability of the implant abutment can be greatly improved.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a PEEK base platform with a nanoneedle interface and a preparation method thereof. Background technique [0002] The oral cavity is an environment with complex flora and bacteria. Insufficient soft tissue sealing effect makes bacteria easily enter the gingival cuff and soft tissue sealing area, especially the formation of plaque biofilm on the surface of the implant abutment and smooth collar, which endangers the health of the gums. In severe cases, it can lead to peri-implantitis. An abutment is an element that connects the implant to the denture to support the gingival soft tissue attachment, especially the epithelial attachment. The periodontal ligament of natural teeth is protected from bacterial attack by a strong seal of the conjunctival epithelium (JE), which is attached to the tooth surface by the basement membrane (BM). After the abutment is placed, the oral epithelium rap...

AI Technical Summary

Problems solved by technology

Further, in order to improve the antibacterial properties of implant materials, in the prior art, some studies have used DC plasma sputtering silver on the surface of titanium abutment, although it has obvious antibacterial effect, it also inhibits the activity of gingival fibroblasts, and some scholars Modification of the abutment-abutment interface by dexamethasone and minocycline-loaded liposomes (Dex / Mino liposomes) demonstrated good antibacterial and anti-inflammatory effects, but it lacked effects on gingival fibroblasts, etc. promotion

[0004] It can be seen that the existing implant abutment surface modification methods are difficult to promote both soft tissue sealing and antibacterial, resulting in a high incidence of peri-implantitis

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