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Modified dental implant and preparation method thereof

A technology for dental implants and implants, applied in dentistry, chemical instruments and methods, dental implants, etc., can solve the problems of insufficient strength of titanium substrates, implant failures, poor osseointegration, etc., to improve the strength and bone integrity. The ability to combine, improve the success rate of planting, and promote the effect of mutual penetration

Active Publication Date: 2021-06-11
天琪(广东)科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Metal titanium has good wear resistance and corrosion resistance, and has no reaction with human body fluids and no stimulation to body tissues. It is an ideal human tissue replacement material, but it is suitable for anterior tooth implants with thin alveolar bone width, or Some dental implants with dental bone defects caused by trauma, disease, aging, etc. often have the risk of fracture due to insufficient strength of the titanium base material during use. After implantation of titanium and titanium alloys into the bone, there may be The poor osseointegration around the implant will eventually lead to the failure of the implant, so it is urgent to improve the strength of the titanium implant so that it can be widely used in clinical diagnosis and treatment

Method used

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  • Modified dental implant and preparation method thereof
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preparation example Construction

[0043] The embodiment of the present invention also provides a method for preparing the modified dental implant as described above, comprising the following steps:

[0044] 1) Print the implant base material through a 3D printer and set aside;

[0045] 2) Mixing the modified graphene and nano-titanium oxide, adding a dispersant, drying and ball milling to obtain the modified graphene-nano-titanium oxide composite coating;

[0046] 3) Evenly spin-spray the modified graphene-nano-titanium oxide composite coating on the surface of the implant base material, and after it is naturally dried, the modified dental implant is obtained;

[0047] 4) The modified dental implant is placed in a muffle furnace for calcining, then cooled, cleaned and dried to obtain a finished implant.

[0048] In the embodiment of the present invention, the mass ratio of modified graphene to nano-titanium oxide in the step 2) is (1-5):7.

[0049] In the embodiment of the present invention, the calcination ...

Embodiment 1

[0052] Take graphene oxide and bombard its surface with plasma, the plasma treatment power is 120W, and the treatment time is 20min; the graphene oxide bombarded by plasma is added to the rutin aqueous solution, and the concentration of graphene oxide and rutin aqueous solution The mass ratio is 0.5:10, disperse evenly, and let stand; filter the mixed solution, take the filter residue and vacuum-dry to obtain modified graphene; mix titanium oxide, basalt fiber and silicone oil in a mass ratio of 3:1:6 and stir evenly , transferred to an autoclave, and treated at 180°C for 3 hours to obtain a mixed slurry; the mixed slurry was dried for 2 hours at a drying temperature of 220°C to obtain a mixed dry material; the mixed dry material was ultrasonicated at a power of 800W Treat for 30 minutes, and then ball mill for 6 hours to obtain nano-titanium oxide; choose medical titanium alloy, print the implant base material by 3D printer, and set aside; mix modified graphene and nano-titani...

Embodiment 2

[0054] Take graphene oxide and bombard its surface with plasma, the plasma treatment power is 120W, and the treatment time is 20min; the graphene oxide bombarded by plasma is added to the rutin aqueous solution, and the concentration of graphene oxide and rutin aqueous solution The mass ratio is 0.5:10, disperse evenly, and let stand; filter the mixed solution, take the filter residue and vacuum-dry to obtain modified graphene; mix titanium oxide, basalt fiber and silicone oil in a mass ratio of 3:1:6 and stir evenly , transferred to an autoclave, and treated at 180°C for 3 hours to obtain a mixed slurry; the mixed slurry was dried for 2 hours at a drying temperature of 220°C to obtain a mixed dry material; the mixed dry material was ultrasonicated at a power of 800W Treat for 30 minutes, and then ball mill for 6 hours to obtain nano-titanium oxide; choose medical titanium alloy, print the implant base material by 3D printer, and set aside; mix modified graphene and nano-titani...

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Abstract

The invention is applicable to the technical field of dental implant, and provides a modified dental implant which comprises an implant base material and a modified graphene-nano titanium oxide composite layer coated on the surface of the implant base material. The invention also provides a preparation method of the modified dental implant, graphene oxide is bombarded by plasma, and rutin is combined to change the activity of functional groups on the surface of graphene, so that the adsorption combination effect between layered graphene molecules is reduced, the acting force between adjacent molecules is improved, and the firmness is improved; the titanium oxide is subjected to nano modification treatment, the network crosslinking degree of the nano titanium oxide is effectively improved, pores are reduced, interpenetration of the nano titanium oxide and the modified graphene is promoted, the modified graphene and the nano titanium oxide are compounded and uniformly coated on an implant base material, and the base material is completely coated by a composite layer; the implant base material ensures excellent biological activity, greatly improves the strength and bone combining capacity, and effectively improves the planting success rate.

Description

technical field [0001] The invention relates to the technical field of dental implants, in particular to a modified dental implant and a preparation method thereof. Background technique [0002] Biomedical composite materials in biomaterials are mainly used to replace damaged or missing human tissue structures to achieve the purpose of restoring tissue shape and performance. During the implantation process of this material, the issue of biocompatibility needs to be considered, and the mechanical compatibility requires that the mechanical properties of the implanted material be adapted or matched with human tissues. If the strength is too low, the material will be fractured and unstable, and if it is too high, it will cause damage to the surrounding tissue, making it difficult for the implanted site to heal for a long time, that is, the "stress shielding" effect. [0003] Dental implant materials can also be called artificial tooth roots, which are surgically implanted into ...

Claims

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Application Information

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IPC IPC(8): A61L27/06A61L27/30A61L27/42A61C8/00C01B32/194
CPCA61C8/0012A61L27/06A61L27/306A61L27/427A61L2420/04A61L2430/12C01B32/194
Inventor 罗滔
Owner 天琪(广东)科技发展有限公司
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