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a dental implant

An implant and body technology, used in implants, dentistry, prosthetics, etc., can solve the problems of slow and weak osseointegration, and achieve the effect of promoting adhesion, uniform friction and increasing friction.

Active Publication Date: 2020-05-26
CHONGQING RUNZE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of dental implant helps osseointegration, it still has the problem of slow and weak osseointegration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An artificial dental implant consists of a head 1 and a body 2. The body 2 includes a mandrel 2-1, a sleeve 2-2, and an anchoring part 2-3. The sleeve 2-2 is sleeved on the mandrel 2-2. 1, the inner surface of the sleeve 2-2 is attached to the outer surface of the mandrel 2-1, such as figure 2 As shown, the outer periphery of the cross-section of the mandrel and the inner periphery of the sleeve 2-2 are regular octagons, the anchoring part 2-3 and the end 2-1-1 of the mandrel 2-1 are fixed by threaded connection, and the sleeve 2 -2 is fixed in the axial direction by the head 1 and the anchoring part 2-3, the anchoring part 2-3 has a threaded outer surface, and a wire mesh sleeve body made of cold-drawn titanium wire with a diameter of 0.1mm is selected, which is porous The pore diameter of titanium is 220 μm, and the pores are interpenetrated. Take 10 three-dimensional bodies of the same size with a volume not greater than 1 cubic millimeter on the porous titanium, we...

Embodiment 2

[0028]This embodiment is similar to Embodiment 1, except that the outer periphery of the cross section of the mandrel 2-1 and the inner periphery of the sleeve 2-2 are ellipses, and the ratio of the major axis to the minor axis of the ellipse is 1.2:1. The porous metal material of the sleeve is made of niobium, and the sleeve 2-2 is prepared by an additive manufacturing process. The aperture of the porous niobium is 140±5 μm, and the protruding edge length on the outer surface of the sleeve 2-2 is 60 μm-70 μm (the length of the edge is the aperture 43%-50%), the additive manufacturing process is: use niobium powder with a particle size of 5μm-10μm, use CAD software to shape, make a square shape with an edge of 140μm, a edge diameter of 60μm, and a unit of 12 edges The frame-shaped porous material model, import the porous material model into the laser additive manufacturing system, scan according to the CAD software modeling, the scanning speed is 200mm / min, the laser power is 9...

Embodiment 3

[0031] This embodiment is similar to Embodiment 1, except that the outer periphery of the cross section of the mandrel 2-1 and the inner periphery of the sleeve 2-2 are regular 12-sided, and the porous metal material of the sleeve is made of tantalum. Sleeve 2-2 was prepared by material manufacturing process, the pore diameter of porous tantalum was 150±5μm, and the protruding edge length on the outer surface of sleeve 2-2 was 57μm-63μm (the length of the edge was 38%-42% of the pore diameter), additive manufacturing The process is: use tantalum powder with a particle size of 5 μm-10 μm and a purity of 99.99%, use CAD software to model, and make a square frame-shaped porous material model with an edge of 150 μm, a edge diameter of 50 μm, and a unit of 12 edges. , import the porous material model into the laser additive manufacturing system, scan according to the CAD software modeling, the scanning speed is 260mm / min, the laser power is 1500W, and the laser beam completes the sc...

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Abstract

The invention provides an artificial dental planting body, which consists of a head part and a body part, wherein the body part comprises an inner side part, an outer side part and an anchoring part;the inner side part is a mandrel; the outer side part is a porous metal material sleeve and sleeves the mandrel; the anchoring part is fixed at one end of the mandrel; holes of the porous metal material of the sleeve are uniform; the length of projected ribs of the outer side surface of the sleeve is 30 to 50 percent of the pore diameter; the increase of friction between the surface of the porousmetal material and the peripheral bone tissue can be facilitated; the friction is uniform; the bone tissues are stimulated, and are promoted to uniformly grow into the porous metal material; the mandrel and the anchoring part prepared by the nanometer porous metal are favorable for the cell adhesion, differentiation and migration; and the storage of many growth factors and medicine is facilitated.The artificial dental planting body has the advantages that the uniform combination of the sleeve and the bone tissues can be realized; the fixation is firm; and the bone combination time is reduced.

Description

technical field [0001] The invention relates to the field of dental implants, in particular to an artificial dental implant. Background technique [0002] In recent years, one of the main repair methods for missing and defective dentition is dental implant, which is to anchor the dental implant on one or more edentulous parts in the patient's dentition, and generally screw or press the dental implant into the In cavities, holes are drilled in the mandible or maxilla in the patient's edentulous region. Compared with other traditional restoration methods such as complete dentures, partial removable dentures, and fixed dentures, dental implants have obvious advantages: first, they have strong functions and can restore tooth functions well, and their chewing function is much better than other traditional dentures; If you don’t grind your teeth, you can rely on your own artificial tooth root for repair. You don’t need to grind the healthy teeth next to it, and there is no harm t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00
Inventor 叶雷
Owner CHONGQING RUNZE PHARM CO LTD
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