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A dental implant with high biocompatibility and stability

A biocompatible and stable technology, used in the field of stomatology, can solve the problems of loose central bolts, failure of restoration, affecting dental implants, etc., to improve performance and service life, prevent loosening and fracture, and prevent movement and wear. Effect

Active Publication Date: 2017-11-10
CHENGDU BESMILE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Oral health problems have always been an important issue in the medical field. Tooth loss accounts for a large part of oral health problems. Traditional dentures can no longer meet the requirements of patients with tooth loss due to their troublesome wearing, unsightly appearance, and easy breeding of bacteria.
When dental implants are engaged in occlusal, chewing and other actions, due to the long-term force from different directions, it is not safe to simply fix them with the central bolt, and it is easy to cause the central bolt to loosen, thereby affecting the realization of the function of the dental implant. In severe cases, it may even cause Food residues enter the alveolar bone through the loosened gap, causing inflammation or other diseases, and damaging human health
The washer described in the patent 201320731527.2 appears in the prior art to prevent the central bolt from breaking, but the washer is set with a flat pad, which mainly plays a fastening effect, and cannot buffer the force on the central bolt well, so in The effect of preventing fracture is not obvious
[0005] Moreover, the prior art zirconia porcelain block is white, which is different from the color of natural teeth, and cannot meet the aesthetic requirements of patients.
In order to ensure the imitation of tooth color, the traditional method is to use opaque porcelain and increase the thickness of veneer porcelain, but this requires an increase in the amount of denture preparation
In addition, due to the low bonding strength of the base porcelain and the veneer porcelain, porcelain chipping is prone to occur, resulting in restoration failure

Method used

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  • A dental implant with high biocompatibility and stability
  • A dental implant with high biocompatibility and stability
  • A dental implant with high biocompatibility and stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh ZrO 2 : 94.919 copies, Y 2 o 3 : 5 parts, CeO 2 : 0.01 parts, Fe 2 o 3 : 0.05 parts, Pr 6 o 11 : 0.001 parts and Er 2 o 3 : 0.02 parts, add to the mixer and mix thoroughly, and dry at 65°C for 24 hours;

[0041] Add 2 parts by weight of polyvinyl alcohol solution binder, mix well, and granulate with a 50-mesh sieve;

[0042] Then add the granulated powder into the mould, and dry press at 30Mpa under the hydraulic press, and the press is 100T;

[0043] The dry-pressed product is isostatically pressed at 160Mpa for 2 minutes, and the isostatic-pressed product is pre-sintered at 850°C for 5 hours;

[0044] Soak the pre-sintered zirconia green body in a dyeing container that keeps the height of the dyeing solution at 1 mm, and soak for 2 minutes; the weight percentage of the dyeing solution used is: polyethylene glycol 5%, erbium oxide 2%, oxide Praseodymium 1%, the balance is ultra-pure water; the liquid level of the dyeing solution is guaranteed by replen...

Embodiment 2

[0048] Weigh ZrO 2 : 93.138 copies, Y 2 o 3 : 6 parts, CeO 2 : 0.05 parts, Fe 2 o 3 : 0.01 part, Pr 6 o 11 : 0.002 parts and Er 2 o 3 : 0.8 parts, add to the mixer and mix thoroughly and dry at 65°C for 18 hours for use;

[0049] Add 2 parts by weight of polyvinyl alcohol solution binder, mix well, and granulate with a 50-mesh sieve;

[0050] Then add the granulated powder into the mould, and dry press at 50Mpa under the hydraulic press to form;

[0051] After dry pressing, the product is isostatically pressed at 180Mpa for 2 minutes;

[0052] The product after isostatic pressing is pre-sintered at 1100°C and kept for 3 hours;

[0053] Soak the pre-sintered zirconia body in a dyeing container that keeps the height of the dyeing solution at 0.5 mm for 3 minutes; the weight percentage of the dyeing solution used is: polyethylene glycol 3%, erbium oxide 0.2%, praseodymium oxide 5%, the balance is ultrapure water;

[0054] After soaking, dry at 100°C for 3 hours; then...

Embodiment 3

[0057] Weigh ZrO 2 : 92.39 copies, Y 2 o 3 : 7 parts, CeO 2 : 0.01 parts, Fe 2 o 3 : 0.05 parts, Pr 6 o 11 : 0.05 parts and Er 2 o 3 : 0.5 parts, add to the mixer and mix thoroughly and dry at 80°C for 24 hours for use;

[0058] Add 4 parts by weight of polyvinyl alcohol solution binder, mix well, and granulate with a 50-mesh sieve;

[0059] Then add the granulated powder into the mould, and dry press at 30Mpa under the hydraulic press to form;

[0060] The product after dry pressing is isostatically pressed at 160Mpa for 2 minutes, and the product after isostatic pressing is pre-sintered at 900°C and kept for 5 hours;

[0061] Soak the pre-sintered zirconia body in a dyeing container that keeps the dyeing solution at a height of 3 mm for 1 minute; the weight percentage of the dyeing solution used is: polyethylene glycol 5%, erbium oxide 0.5%, praseodymium oxide 10 %, the balance is ultrapure water;

[0062] After soaking, dry at 130°C for 2 hours; final sinter the...

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Abstract

The invention relates to the field of oral medical instruments. The purpose is to provide a highly biocompatible and stable dental implant with good structural strength and wear resistance. The technical solution adopted is: a dental implant with high biocompatibility and stability. The lower part of the abutment is inserted into the large-sized part of the upper part of the positioning installation hole, and a stepped inner hole is arranged inside the abutment, and the central bolt is inserted into the lower part of the positioning installation hole in the implant through the stepped inner hole to form a threaded fit. The abutment includes a base body and a gingival part made of zirconia ceramic block. A spring washer is arranged between the head of the central bolt and the stepped surface of the stepped inner hole, and the central bolt locks the spring washer and the abutment to the implant. The invention strengthens the structural strength and wear resistance of the dental implant, and effectively prevents the problem that the central bolt is easy to loosen and break in the prior art.

Description

technical field [0001] The invention relates to stomatology, in particular to an implant structure and material for dental restoration. Background technique [0002] Oral health has always been an important issue in the medical field. Tooth loss accounts for a large part of oral health problems. Traditional dentures can no longer meet the requirements of patients with tooth loss due to their troublesome wearing, unsightly appearance, and easy breeding of bacteria. Therefore, the dental implant restoration method has appeared. Compared with the traditional denture restoration, the dental implant restoration method is to implant the implant (that is, the artificial tooth root) into the alveolar bone, then install the abutment on the implant, and finally install the abutment on the abutment. Restoration of the tooth is achieved by installing the crown part on the table. Dental implant restoration has strong retention and stability, and can be rooted in the patient's mouth like...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00
Inventor 王昌健冯崇敬
Owner CHENGDU BESMILE BIOTECH
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