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Preparation method of artificial bone tooth with PLLA/nHA (poly-L-lactic acid/nano-hydroxyapatite) surface active coating

A surface-active, artificial tooth technology, used in coatings, dentures, pharmaceutical formulations, etc., to achieve the effects of good biocompatibility, good stability, and avoidance of occlusion

Active Publication Date: 2017-07-21
NANNING YUEYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The artificial teeth prepared by this method can give full play to the excellent characteristics of PEEK composite materials and PLLA / nHA composite materials, and effectively solve the shortcomings of the current titanium-based artificial teeth with bionic coatings.

Method used

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Embodiment Construction

[0017] A kind of preparation method of the imitation artificial bone artificial tooth with PLLA / nHA surface active coating of the present invention comprises the following steps:

[0018] (1) Preparation of PEEK composite material imitating artificial bone and artificial tooth

[0019] Take 60 parts by weight of PEEK resin full-length fibers, 20-25 parts by weight of high-strength glass full-length fibers, and 15-20 parts by weight of barium glass full-length fibers, and then weave them into threads after fully mixing them, and then weave the threads into obliquely encircling twists Rope body, then put the rope body into a steel mold and heat and press to form it. The pressure is 0.5-5MPa, the temperature is 350-380°C, and the time is 10-20 minutes. Cut the PEEK composite material round bar with CAD / CAM equipment and process it into a PEEK composite material imitation artificial bone artificial tooth blank, then process the external thread and the central connecting hole, and ...

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Abstract

The invention provides a preparation method of an artificial bone tooth with a PLLA / nHA (poly-L-lactic acid / nano-hydroxyapatite) surface active coating. The preparation method comprises the steps of preparation of an artificial bone tooth blank from a PEEK (polyetheretherketone) composite, preparation of the coating of a PLLA / nHA composite and surface degradation treatment. According to the method, the artificial tooth blank is prepared from a PEEK resin and glass fiber composite; the PLLA / nHA composite is securely applied on the surface of an implantation part of the artificial tooth blank; since poly-L-lactic acid is degraded more quickly than nano-hydroxyapatite, a part of poly-L-lactic acid on the surface of the coating is degraded; more nano-hydroxyapatite particles on the surface of the coating are exposed; bone induction and synostosis are better facilitated. The artificial tooth prepared by the method can fully exert excellent characteristics of the PEEK composite and the PLLA / nHA composite; a Young modulus of elasticity of the artificial tooth is close to that of human bone; a shielding phenomenon can be avoided; the coating is good in stability; the degradation time conforms to a growth cycle of the bone; the artificial tooth can be used for a long term.

Description

technical field [0001] The invention relates to a method for preparing artificial teeth, in particular to a method for preparing artificial bone imitating artificial teeth with poly-L-lactic acid (PLLA) / nanometer hydroxyapatite (nHA) surface active coating on the implanted part, which belongs to dental medicine field of materials technology. Background technique [0002] The Swedish doctor Bremark found that titanium has good biocompatibility and can combine well with bone. It has been applied to dental implants for decades. People are used to using titanium as dental implant materials, but Titanium also has some disadvantages as a dental implant material, such as: the Young's modulus of titanium is too high, there is a shielding phenomenon, it will release metal ions and cause potential metal allergy, and it also has an annoying black color, and its biological activity is not as good as that of hydroxyapatite ( HA) etc. In order to solve these problems, a layer of hydroxy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/10A61L27/18A61L27/32A61L27/34A61L27/50A61L27/58A61C13/087A61C13/08
CPCA61C13/08A61C13/087A61L27/10A61L27/18A61L27/32A61L27/34A61L27/50A61L27/58A61L2400/18A61L2420/04A61L2430/12C08L61/16C08L67/04
Inventor 王玉元王粤凡
Owner NANNING YUEYANG TECH
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