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Three-dimensional-printing-technology-based alveolar bone restoration method

A technology of three-dimensional printing and restoration method, which is applied in the field of medical treatment and dental implantation, which can solve the problems of long operation time for bone powder implantation, difficult accumulation of bone powder, and easy infection, etc., and achieves adjustable internal porosity, reduces secondary infection, Restoring the effect of alveolar bone resorption

Inactive Publication Date: 2016-04-20
REGENOVO BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a personalized alveolar bone preparation and repair based on biological three-dimensional printing technology in view of the shortcomings of the existing alveolar bone repair methods, such as long operation time for bone powder implantation, complicated operation, easy infection, and difficult accumulation of bone powder. method

Method used

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  • Three-dimensional-printing-technology-based alveolar bone restoration method
  • Three-dimensional-printing-technology-based alveolar bone restoration method

Examples

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Effect test

Embodiment 1

[0032] A periodontal specialist examination was performed on a 42-year-old patient with periodontal disease, and the probing depth (PD), attachment loss (CAL), looseness, bleeding index (BI), and root furcation level penetration depth of alveolar bone defect teeth were recorded (HPD) and other periodontal index, and full-mouth CBCT examination (1-3), such as figure 1 As shown, the patient was found to have a periodontal bone defect in the subosseous pocket of the three walls, and periodontal tissue-guided regeneration surgery could be performed.

[0033] Such as figure 2 As shown, based on the medical image data obtained by CBCT, through the image processing algorithm or medical image processing software, such as Mimics, the three-dimensional image of the tooth is reconstructed (4), and the three-dimensional module of the alveolar bone defect tooth is segmented and reconstructed (5), Determine the shape, size and position of the alveolar bone defect based on the image resolu...

Embodiment 2

[0037] A periodontal specialist examination was performed on a 44-year-old patient with periodontal disease, and periodontal probing depth (PD), attachment loss (CAL), looseness, bleeding index (BI), and root furcation level penetration depth (HPD) were recorded. Index, and a full-mouth CBCT examination, found that the patient had a periodontal bone defect in the subosseous pocket of the second wall, and guided periodontal regeneration surgery could be performed.

[0038] Such as image 3 As shown, based on the medical image data obtained by CBCT, use image processing algorithms or medical image processing software, such as Mimics, to reconstruct the three-dimensional image of the tooth (7), segment and reconstruct the three-dimensional module of the tooth with alveolar bone defect (8), based on Determine the shape, size and position of the alveolar bone defect with image resolution and imaging layer thickness, and design a personalized alveolar bone defect repair module (9) t...

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Abstract

The present invention discloses a three-dimensional-printing-technology-based alveolar bone restoration method. A defective alveolar bone is analyzed positioned preoperatively according medical image data of a patient with moderate-severe alveolar bone defects caused by chronic periodontitis for determination of shape and size of the defective alveolar bone for establishment of a three-dimensional model, a biodegradable osteanagenesis-induction biocompatible material is selected, and the defective alveolar bone model is printed for molding by a three-dimensional biological printing technology. By accurate measuring of size and volume of an alveolar bone restoration module, bone meal addition amount calculation errors caused by human factors can be reduced; due to changes in bone meal particle formation traits, a bone defect repair form produced by an implant not only can effectively fill the defects in the bone, but also can stably improve a vertical osteanagenesis promotion material piling height, repairs part of horizontal alveolar bone absorption, and improves alveolar bone regeneration capacity; by use of rapid forming technology, alveolar bone restoration modules required for different patients can be formed, the internal porosity rate is adjustable, and the forming efficiency is high.

Description

technical field [0001] The invention relates to the field of medical treatment and dental implantation, in particular to a method for repairing alveolar bone based on three-dimensional printing technology. Background technique [0002] Periodontal disease is one of the two major diseases of the human oral cavity. The incidence rate in my country is as high as 80%. It is the main cause of tooth loss in adults and a major disease that endangers human teeth and general health. The ideal treatment of periodontal disease is not only to remove the pathogenic factors and eliminate inflammation to control the development of the disease, but also to restore the original structure and function of the periodontal tissue destroyed by the disease, that is, to realize the periodontal tissue (gingiva, alveolar bone, periodontal ligament and cementum) regeneration. The traditional periodontal disease treatment method mainly uses scaling to remove the plaque in the periodontal sac mechanica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/36B33Y10/00B33Y50/00
CPCA61L27/3608A61L2430/02
Inventor 王玲徐铭恩周永勇雷丽红陈莉莉罗莉
Owner REGENOVO BIOTECH
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