Accurate mold taking method and device for multi-tooth implantation

An accurate and tooth-positioned technology, applied in the field of accurate impression taking of multi-dentate implants, can solve the problems affecting the accuracy of impression taking and the time-consuming time of taking impressions, and achieve the effect of increasing the scope of popularization, improving speed and efficiency, and accurate assembly

Active Publication Date: 2020-11-10
PEKING UNIV SCHOOL OF STOMATOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a method and device for taking accurate impressions for multi-dental implants, so as to solve the prob

Method used

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  • Accurate mold taking method and device for multi-tooth implantation
  • Accurate mold taking method and device for multi-tooth implantation
  • Accurate mold taking method and device for multi-tooth implantation

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Experimental program
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Embodiment 1

[0048] see Figure 1~5 , a method for accurately taking impressions for multi-dental implants provided by the present invention, comprising the following steps:

[0049] 1) Take a number of implant impression bars 100, the number of implant impression bars 100 corresponds to the number of teeth to be implanted, and install one end of the implant impression bars 100 on the implant (not shown) in the oral cavity through screws (not shown). icon);

[0050] 2) Using an intraoral scanner to scan and obtain the three-dimensional point cloud data of each implant impression post 100 and the three-dimensional point cloud data of oral tissues around the implant impression post 100;

[0051] 3) Edit and model the 3D point cloud data obtained in step 2) by using the software supporting the intraoral scanner to obtain an arc-shaped 3D fixed block model corresponding to the shape of the dental arch in the oral cavity, and the 3D fixed block model Several fixing holes 11 are arranged at in...

Embodiment 2

[0088] The end face of the internal fixed impression facing the three-dimensional tray model is provided with several guide bolts 18 at intervals along the circumference of the internal fixed impression; and / or, the end face of the external fixed impression facing the three-dimensional tray model is along the circumference of the internal fixed impression Some guide bolts 18 are arranged at intervals; the inner bottom surface of the bracket 22 of the three-dimensional tray model is convexly provided with guide bolts 24 matched with the guide bolts; the three-dimensional tray model is coated on the three-dimensional fixed block model, and the guide The plug body 24 is inserted into the guide bolt channel 18 to form the guidance and positioning between the three-dimensional tray model and the three-dimensional fixed block model.

[0089] The cooperating design of the guide bolt channel 18 and the guide bolt body 24 can accurately realize the precise docking of the tray 2 and the ...

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Abstract

The invention relates to an accurate mold taking method and device for multi-tooth implantation. The method comprises the following steps: 1) mounting an implantation impression rod in an implant in an oral cavity; 2) performing scanning by using an intraoral scanner to obtain three-dimensional point cloud data; 3) carrying out editing and modeling by utilizing software to obtain a three-dimensional fixed block model, and forming a fixed hole in the surface of the three-dimensional fixed block model; 4) performing editing and modeling by utilizing software to obtain a three-dimensional tray model, wherein the three-dimensional tray model comprises a supporting block; a supporting groove formed in the surface of the supporting block; and a fixed inserting hole formed in the bottom surface of the supporting groove; 5) performing 3D printing on the three-dimensional fixed block model to obtain a fixed block, and performing 3D printing on the three-dimensional tray model to obtain a tray;and 6) sleeving the implantation impression rod with the fixed block through the fixing hole, injecting an impression material into the supporting groove, coating the fixed block with the supporting groove, and taking down the impression material after the impression material is solidified, thereby finishing mold taking. According to the mold taking method, the three-dimensional digital acquisition technology, the digital design and the advanced manufacturing technology are combined, and accurate, rapid and efficient mold taking operation can be achieved.

Description

technical field [0001] The invention belongs to the technical field of dental implants, and in particular relates to an accurate impression-taking method for multi-dental implants. Background technique [0002] Dental implant refers to a method of restoring missing teeth based on the underlying structure implanted in bone tissue to support and retain the upper tooth restoration. [0003] The key (or first step) to successful implant restoration is obtaining an accurate impression. For multi-dentate implants, when taking restorative impressions, it is necessary to maintain the stability of multiple implant impression bars to obtain accurate positional relationships of the implants, which increases the complexity of impression taking clinically. [0004] At present, in order to maintain the stability of multiple implant impression posts in the process of taking impressions, manual methods are mainly used to install the implant impression posts of multiple tooth positions in t...

Claims

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Application Information

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IPC IPC(8): A61C8/00A61C9/00B29C64/10B29C64/393B33Y10/00B33Y50/02
CPCA61C8/0089A61C9/0053A61C9/0006B29C64/10B29C64/393B33Y10/00B33Y50/02
Inventor 原福松刘云松梁姗姗
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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