Manufacturing method of upper structure of screw-retained implant

A production method and implant technology, applied in the fields of implantology, medical science, dentistry, etc., can solve problems such as difficult to achieve close precision, increased occlusal height, and poor reusability, so as to improve close precision, eliminate occlusal heightened, and ensure The effect of passive positioning

Inactive Publication Date: 2012-06-20
TONGJI UNIV
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Problems solved by technology

[0002] since Since the invention of oral implants, the upper structure of screw-retained implants has been widely used clinically because of its easy disassembly, easy cleaning, and good reusability. Obvious shortcomings such as high sealing precision
The cement-retained implant superstructure has been widely used in recent years due to its simplicity in laboratory fabrication and

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  • Manufacturing method of upper structure of screw-retained implant
  • Manufacturing method of upper structure of screw-retained implant

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0021] A method for manufacturing a screw-retained implant superstructure of the present invention comprises the following steps:

[0022] 1. Use the window-type impression method to take the impression, and fill the working model of the implant restoration of the missing tooth ( CAT No. 3912HL. Nobel Biocare, Yorba Linda, CA, USA);

[0023] Implant dentures include three indispensable components: implant nails (commonly known as implants) implanted in the upper and lower jaws, abutments connecting implants and restorations, restorations (porcelain teeth or all-ceramic teeth, used to restore The part of the patient's occlusal function is also the implant superstructure). The whole process can be roughly divided into two steps: the first step is implant surgery (the implant is implanted into the patient's jawbone by surgery); , because at th...

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Abstract

The invention discloses a manufacturing method of an upper structure of a screw-retained implant. The manufacturing method comprises the following steps of: filling a working model for implant restoration of missing teeth; fixing an abutment on an implant analog of the working model; manufacturing a wax pattern of an inner crown of a prosthesis and reserving a screw hole on a porcelain bridge surface at a butment part of the wax pattern; removing the wax pattern, embedding and casting to manufacture the inner crown of the prosthesis, and reserving the screw hole on a casting surface; performing porcelain piling on the inner crown of the prosthesis to manufacture an outer crown of the prosthesis and complete a metal porcelain bridge; and closing a screw channel on the abutment, which is communicated with the screw channel of the implant and bonding the metal porcelain bridge on the abutment for forming the upper structure of the implant. According to the manufacturing method disclosed by the invention, the manufacturing difficulty in a technician office of the upper structure of the screw-retained implant can be reduced on the basis of retaining the repeatable usability of the prosthesis, and the dovetailing precision between the upper structure and the implant can be simultaneously effectively improved.

Description

technical field [0001] The invention belongs to the field of oral implantation, and relates to a method for manufacturing an implant superstructure, in particular to a method for manufacturing a screw-retained implant superstructure. Background technique [0002] since Since the invention of oral implants, the superstructure of screw-retained implants has been widely used clinically because of its easy disassembly, easy cleaning, and good reusability. Obvious shortcomings such as high sealing accuracy. The cement-retained implant superstructure has been widely used in recent years due to its simplicity in laboratory fabrication and high sealing accuracy, but it is inconvenient to disassemble, poor in reusability, and has a tendency to be bonded during bonding. The disadvantages such as increased occlusion caused by the agent limit its application range. Although some scholars have tried to improve the retention method of the implant superstructure, the above defects have...

Claims

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Application Information

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IPC IPC(8): A61C8/00
Inventor 陈建荣
Owner TONGJI UNIV
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