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Telescopic crown retainer based on 3D printing and manufacturing method thereof

A technology of 3D printing and manufacturing methods, which is applied in the fields of additive manufacturing, medical science, filling teeth, etc., and can solve problems such as incompatibility and complexity

Active Publication Date: 2021-05-18
CHENGDU DT DENTALLAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent application is actually mainly aimed at the design of the removable denture of the clasp retainer, while the telescopic crown retainer has a more complicated structure, so there are still some problems when using this method for design and manufacture. The most important problem is that the telescopic crown not only plays a retaining role through the combination of the inner and outer crowns to ensure the stability and position accuracy of the denture, but also undertakes the normal functions of the teeth. The design method of dentures cannot take both aspects into consideration

Method used

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  • Telescopic crown retainer based on 3D printing and manufacturing method thereof
  • Telescopic crown retainer based on 3D printing and manufacturing method thereof
  • Telescopic crown retainer based on 3D printing and manufacturing method thereof

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Embodiment Construction

[0064] The present invention is further described below.

[0065] The method for manufacturing a telescopic crown based on 3D printing disclosed by the present invention comprises the following steps:

[0066] First-level crown treatment: obtain a three-dimensional digital model including the first-level crown, and determine the common seating path of all first-level crowns. The three-dimensional digital model includes a digital working model, an opposing jaw model, and an occlusal relationship;

[0067] Design the secondary crown: Edit the shoulder line of the primary crown as the edge line of the secondary crown;

[0068] Generate the gap space between the secondary crown and the primary crown;

[0069] Set the minimum thickness of the secondary crown axial surface, the thickness of the secondary crown edge and the thickness transition angle;

[0070] According to the set secondary crown parameters, a full crown shape with natural tooth shape is generated on the primary cr...

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Abstract

The invention belongs to the field of prosthodontics and repair processes, and discloses an integrated telescopic crown retainer based on 3D printing and a manufacturing method thereof. According to the manufacturing method of the telescopic crown retainer, a full-crown form is firstly generated according to set secondary crown parameters, and then the secondary crown is formed through back-cutting so that ceramic layers on the secondary crown and the subsequent secondary crown have enough thickness and better forms, the accuracy and the stability of combination of the primary crown and the secondary crown are ensured, the pre-designed full crown form is also beneficial to subsequent processing and manufacturing, and the final telescopic crown retainer finished product can better produce normal functions of teeth; and the secondary crown is designed firstly, and then a telescopic crown retainer bracket is designed so that the accuracy of the relative position and the connection stability of the telescopic crown retainer bracket and the secondary crown can be ensured.

Description

technical field [0001] The invention belongs to the field of oral restoration and restoration technology, in particular to a 3D printing-based integrated telescopic crown and a manufacturing method thereof. Background technique [0002] Tooth defect is a common problem in the field of oral restoration. Dentition defect destroys the integrity of oral dentition, which makes the periodontium of remaining teeth bear extra force and suffer further damage, thus generating new dentition defect. Defects are controlled. Telescopic crown restoration technology is one of the most important treatment methods for repairing dentition defects. It is widely used in clinical oral restoration because of its advantages of comfort and beauty. The telescopic crown is composed of an inner crown and an outer crown. The inner crown is bonded to the abutment, and the outer crown is placed on the inner crown. The outer crown and the inner crown are tightly fitted to form a retention force, which pro...

Claims

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Application Information

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IPC IPC(8): B22F10/28B22F10/80A61C5/77A61C13/00B33Y10/00B33Y50/00B33Y80/00
CPCA61C5/77A61C13/0004B33Y10/00B33Y50/00B33Y80/00Y02P10/25
Inventor 周小锋
Owner CHENGDU DT DENTALLAB CO LTD
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