Individual abutment and manufacturing method thereof

A manufacturing method and abutment technology, applied in the field of biomedical engineering, can solve problems such as the inability to ensure the force direction and size accuracy of the abutment, affect the comfort of the patient's chewing effect, and make it difficult to control the manufacturing accuracy. Ideal roughness, good dimensional accuracy and high molding efficiency

Active Publication Date: 2015-11-18
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design of the abutment model based on the 3D scanning results and CAD modeling cannot guarantee the accuracy of the force direction and size of the abutment, and the manufacturing accuracy is also difficult to control, so there is still a defect of low fit, which affects Patient chewing effect and comfort of use

Method used

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  • Individual abutment and manufacturing method thereof
  • Individual abutment and manufacturing method thereof
  • Individual abutment and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The manufacturing method of a personalized base station of this embodiment includes the following steps (see the flowchart figure 1 ):

[0052] (1) Reverse modeling: CT scan the patient’s mouth to obtain a model of the patient’s jaw, including root depth, tooth inclination, and force inclination of occlusal contact. According to the jaw model, the doctor performs a computer on the jaw model. Simulate implantation of the implant, obtain the inclination angle of the implant, and perform the three-dimensional modeling of the abutment according to the implant to obtain the abutment model, such as figure 2 Shown

[0053] (2) Forward modeling: Using UnigraphicsNX as the platform, using its parametric modeling function, the geometric shape and size of each feature of the abutment model described in step (1) are expressed in variable parameters, using interactive graphics The design method realizes the parametric design process of the abutment, and realizes the intelligent and pers...

Embodiment 2

[0071] This embodiment is a method for manufacturing a personalized base station. The steps are the same as those in embodiment 1, except that:

[0072] The forming process in step (5) is as follows:

[0073] a. Lay titanium powder on the substrate, the thickness of the powder layer is 80μm, and use a scraper to evenly distribute the titanium powder layer;

[0074] b. At 0.5MPa, 20m 3 In the argon environment of / h, the high-precision scanning galvanometer is used to perform laser scanning molding (100W high-energy ytterbium-doped fiber laser) based on the path file generated by the three-dimensional model layer, and the metal titanium powder is melted by focused laser energy to form a flat The melting layer, the scanning parameters are:

[0075] The scanning speed is 10m / s; the laser beam diameter is 60μm; the repeat positioning accuracy is ±0.003mm; and the forming speed is 10ccm / h.

[0076] The method of surface treatment in step (7) is:

[0077] (i) Using the personalized base as th...

Embodiment 3

[0080] This embodiment is a method for manufacturing a personalized base station. The steps are the same as those in embodiment 1, except that:

[0081] The forming process in step (5) is as follows:

[0082] a. Lay titanium powder on the substrate, the thickness of the powder layer is 100μm, and use a scraper to evenly distribute the titanium powder layer;

[0083] b. At 1.5MPa, 30m 3 In the argon environment of / h, the high-precision scanning galvanometer is used to perform laser scanning molding (100W high-energy ytterbium-doped fiber laser) based on the path file generated by the three-dimensional model layer, and the metal titanium powder is melted by focused laser energy to form a flat The melting layer, the scanning parameters are:

[0084] The scanning speed is 5m / s; the laser beam diameter is 120μm; the repeat positioning accuracy is ±0.003mm; the forming speed is 20ccm / h.

[0085] The method of surface treatment in step (7) is:

[0086] (i) Using the personalized base as the a...

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Abstract

The invention relates to an individual abutment and a manufacturing method thereof. The manufacturing method comprises the following steps: carrying out reverse modeling through CT scanning and carrying out parametrization design on a model through Unigraphics NX, implementing precise repairing on the abutment model, carrying out simulation analysis on the abutment model by virtue of a finite element analysis method, and implementing model optimization design according to a finite element stress analysis result so as to meet the attributes of an abutment material; carrying out three-dimensional hierarchical slicing treatment on the abutment model meeting the attributes of the abutment material, and promoting the generation of a corresponding path file; and according to the path file, reasonably controlling the parameters of selective laser melting equipment and molding so as to obtain the individual abutment. The manufacturing method disclosed by the invention can be used for effectively guaranteeing the accuracy of stress direction and size of the abutment as well as the precision of molding, and the manufactured individual abutment can fit to jaw characteristics of a patient more precisely compared with the prior art, so that comfort in use is improved and the service life of the abutment is prolonged.

Description

Technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a personalized abutment and a manufacturing method thereof. Background technique [0002] Dental implants, also known as artificial roots, consist of three parts: abutment, implant and central screw. They are surgically implanted into the alveolar bone of the missing tooth. After it is combined with the alveolar bone, A device for restoring dentures is installed on the upper part (ie abutment). In 1965, the German Branemark made the first titanium nail implant in the mouth of a rabbit using pure metal titanium. Later, he conducted a 10-year functional test on dogs and achieved good results. Compared with traditional fixed bridges and movable denture restorations, dental implants have the advantages of beauty, comfort and reliability. They have become the "third teeth" that benefit patients with dentition defects and have received widespread attention. [0003] However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C8/00A61K6/033A61K6/02A61K6/838
Inventor 张弓彭忠凯梁济民罗良维陈贤帅张鹏林天赐黄达鸿
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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