Unlock instant, AI-driven research and patent intelligence for your innovation.

A 3D printed titanium-based composite denture

A titanium-based composite material and 3D printing technology, applied in the field of metal dentures, can solve problems such as allergies, affecting the performance of dentures, poor wear resistance, etc., and achieve good biocompatibility, short preparation cycle and good comfort

Active Publication Date: 2018-09-07
NANTONG JINYUAN INTELLIGENT TECH CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also significant deficiencies in the prior art: first, cobalt-chromium alloys and nickel-chromium alloys contain heavy metal elements (cobalt, nickel) that are harmful to the human body, and these heavy metal elements will be in the complex oral environment during denture use. Chemical and electrochemical reactions occur, and the released metal ions such as cobalt and nickel not only affect the performance of dentures, but may even cause serious adverse reactions such as allergies; secondly, although titanium and its alloys have low density, good biocompatibility, and Corrosion, fatigue resistance, high specific strength, etc., can replace cobalt-chromium alloys, nickel-chromium alloys, etc., and become ideal materials for the preparation of metal dentures. However, titanium alloys, especially pure titanium, also have disadvantages such as low hardness and poor wear resistance. , it is difficult to meet the requirements of long-term and stable use of dentures in the oral cavity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The denture is made of pure titanium powder (the composition is 0.15wt.% Fe, 0.1wt.% Si, 0.05wt.% C, 0.03wt.% N, the balance is Ti, the powder is spherical, the particle size is 5μm) and nano-Al 2 o 3 (Al 2 o 3 The mixed powder with a content of 99.2wt.% and a particle size of 10nm) is formed by printing with a 3D printer. The mass ratio of pure titanium powder to nanometer dioxide powder in the above mixed powder is 19:1.

Embodiment 2

[0022] The denture is made of pure titanium powder (the composition is 0.18wt.% Fe, 0.05wt.% Si, 0.08wt.% C, 0.06wt.% N, the balance is Ti, the powder is spherical, the particle size is 30μm) and nano TiO 2 Powder (TiO 2 The mixed powder whose content is 98.4wt.%, particle size is 30nm) is formed by 3D printer printing. Pure titanium powder and nano TiO in the above mixed powder 2 The mass ratio of powder is 199:1.

Embodiment 3

[0024] The denture is made of titanium alloy powder (composition is 6.6wt.% Al, 3.8wt.% V, 0.26wt.% Fe, 0.1wt.% Si, 0.06wt.% C, 0.04wt.% N, the balance is Ti, powder spherical, with a particle size of 50 μm) and nano-Al 2 o 3 Powder (Al 2 o 3 The mixed powder with a content of 99.5wt.% and a particle size of 20nm) is formed by printing with a 3D printer. Titanium alloy powder and nano Al in the above mixed powder 2 o 3 The mass ratio of powder is 499:1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a 3D printing titanium-based composite false tooth. The false tooth is prepared from pure titanium powder or mixed powder of titanium alloy and Al2O3 nanopowder or TiO2 nanopowder in a printing manner through a 3D printer. The 3D printing titanium-based composite false tooth has the advantages of the short preparation period, good comfort and the like of an additive manufacturing technology and also overcomes the defects of low hardness and poor wear resistance of titanium alloy (especially pure titanium). The obtained titanium-based composite false tooth has the beneficial effects of being good in biocompatibility, nontoxic and harmless to the human body, good in wear resistance and the like and is suitable for being stably used by a patient for a long time.

Description

technical field [0001] The invention relates to a metal denture, in particular to a 3D printed titanium-based composite denture. Background technique [0002] Dentures are an important method for repairing tooth defects. Metal dentures are increasingly widely used due to their beautiful color and wear resistance. The main materials are nickel-chromium alloy, cobalt-chromium alloy, titanium alloy, etc. The production of traditional metal dentures is a complete manual process. Dentures are obtained through a series of processes such as patient oral impressions, wax mold making, shell casting, shell roasting and dewaxing, casting, and trimming. The entire preparation process of dentures lasts 1 to 2 months, and there are many human factors in the preparation process of dentures. The difference in the level of doctors or technicians also causes uneven quality of finished dentures, making it difficult for patients to obtain satisfactory results. [0003] With the increase of ind...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F3/115A61C13/08
CPCY02P10/25
Inventor 岳巍
Owner NANTONG JINYUAN INTELLIGENT TECH CO LTD