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GF/PEEK composite artificial tooth with novel BGC coating and preparation method of artificial tooth

A composite material and artificial tooth technology, applied in coatings, dentures, medical science, etc., can solve problems such as poor mechanical properties and biocompatibility, poor osseointegration strength, and poor bonding between green bodies and coatings. Achieve biocompatibility and good osseointegration strength, inexpensive, and promote cell adhesion

Active Publication Date: 2017-05-31
NANNING YUEYANG TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of GF / PEEK composite material artificial tooth with BGC coating and preparation method thereof, to solve the gap between the body and the coating that exist in the existing titanium artificial tooth with conventional bioactive material coating Poor combination, poor mechanical properties and biocompatibility, poor osseointegration strength, etc.

Method used

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Embodiment Construction

[0017] The preparation method of the GF / PEEK composite artificial tooth with BGC coating of the present invention comprises the following steps:

[0018] (1) Preparation of GF / PEEK composite material

[0019] Take 15-20 parts by weight of alkali-free glass filaments with a length of 4-5mm and barium glass filaments with a length of 4-5mm and 60-70 parts by weight of medical-grade PEEK resin powder for stirring and mixing. Put the powder into a twin-screw extruder to extrude a round bar of φ4-φ7mm.

[0020] In this step, the processing temperature of the twin-screw extruder is set at 380-400°C, the processing pressure is set at 10-15Mpa, and a rod with a bending strength of 250-300Mpa and a bending modulus of 15-20Gpa is extruded.

[0021] (2) Preparation of new bioactive glass-ceramic powder

[0022] Get chemical analysis pure grade raw material CaO 33~60 parts by weight, P 2 o 5 11-44 parts by weight, SiO 2 22 to 42 parts by weight, 0.5 to 7 parts by weight of MgO, mix...

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Abstract

The invention provides a GF / PEEK composite artificial tooth with a novel BGC coating and a preparation method of the artificial tooth. A blank of the artificial tooth is prepared from a GF / PEEK composite; the elastic modulus and an expansion coefficient of the composite are close to those of a human bone; the toughness and the fatigue reliability of the composite are good; the blank and the novel BGC coating sprayed on the surface of an implantation part have higher cohesion and close expansion coefficients, and are securely combined. Therefore, compared with the conventional titanium artificial tooth, the mechanical property, the biocompatibility and the bone bonding strength of the artificial tooth are better; the coating cannot easily fall. The novel BGC coating is sprayed on the surface of the implantation part of the artificial tooth, and a micro / nano porous groove structure and an exposed nano hydroxyapatite particle rough surface are presented, so that cell adhesion can be facilitated; early repair of the bone is accelerated. The artificial tooth is low in material price, simple in preparation technology, easy to produce, cheap and fine, and is worthy of popularization.

Description

technical field [0001] The present invention relates to an artificial tooth and a preparation method thereof, in particular to a glass fiber (GF) / polyetheretherketone (PEEK) composite artificial tooth with a novel bioactive glass ceramic (BGC) coating on the surface of the implant site and its preparation method. The preparation method belongs to the technical field of dental medical equipment. Background technique [0002] Thirty years ago, my country pioneered a bioactive glass-ceramic (BGC) that is easy to produce and can be sintered without high pressure. It has good biocompatibility, stable chemical properties, high strength and high hardness. The material passed the provincial appraisal in September 1986. It has been proved by a large number of animal tests and clinical trials that the material has a fast bone formation speed, good bonding stability with bone, and a higher bonding strength than similar artificial bone materials. Therefore, this material is used as It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/087A61C13/083A61L27/18A61L27/10A61L27/32A61L27/50A61L27/56
CPCA61C13/083A61C13/087A61L27/10A61L27/18A61L27/32A61L27/50A61L27/56A61L2430/12C08L61/16
Inventor 王玉元王粤凡
Owner NANNING YUEYANG TECH
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