Method for modifying surface of titanium dental implant and titanium dental implant

Abstract

The invention provides a surface modification method of a titanium dental implant and the titanium dental implant. The surface modification method comprises the following steps: step 1, preparing a micro-nano titanium phosphate / titanium mixed coating on the surface of the titanium dental implant; 2, magnesium ions and strontium ions are doped to the surface of the titanium dental implant with the micro-nano titanium phosphate / titanium mixed coating formed on the surface at the same time through a hydrothermal method, and the magnesium-strontium double-doped micro-nano surface modified titanium dental implant is obtained. The surface of the dental implant is subjected to magnesium-strontium double-doped micro-nano surface modification, so that cell adhesion of BMSCs is increased, proliferation and osteogenic differentiation of the BMSCs are promoted, and the bone combining capacity of the dental implant can be improved in multiple directions. In addition, the surface modification method also has the characteristics of low cost, simplicity and easiness in operation, high reaction rate and the like. The magnesium-strontium double-doped micro-nano surface modified titanium dental implant obtained by adopting the method effectively solves the problems that the time required for bone combination of the dental implant and an alveolar bone is long, and the dental implant is difficult to be tightly combined with a bone tissue in the early stage of implantation.

Description

technical field [0001] The invention relates to the field of titanium dental implants, in particular to a method for surface modification of titanium dental implants. Background technique [0002] Denture defect is a common disease in the field of stomatology, and implant denture restoration is the best treatment method to solve dentition defect. The implant part of the implant denture is a structure that is implanted into the bone tissue to replace the natural root. Currently, the implants used clinically are mainly root-shaped structures made of titanium and titanium alloys, which have good physical and chemical properties. The cementum and alveolar bone on the root surface of natural teeth are connected by a layer of periodontal ligament. The periodontal ligament is a kind of fibrous connective tissue. One end of its main fibers is embedded in the cementum, and the other end is embedded in the alveolar bone, which fixes the tooth in the alveolar socket. It also has prote...

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Problems solved by technology

[0007] In order to solve the above problems, the present invention provides a method for surface modification of titanium dental implants and titanium dental implants. The surface of titanium dental implants is modified by magnesium-strontium double-doped micro-nano modification, which can effectively solve the problems in the prior art. It takes a long time for the dental implant to osseointegrate with the alveolar bone, and it is difficult for the dental implant to be tightly integrated with the bone tissue in the early stage of implantation, and the surface modification method of the titanium dental implant in the prior art is costly and difficult to prepare. Problems such as complex process and high energy consumption

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