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Alveolar bone augmentation support system

A stent system and alveolar bone technology, applied in medical and stomatological fields, can solve problems such as insufficient support, poor cosmetic effect, and insufficient height of new alveolar bone

Active Publication Date: 2021-07-13
NOVAPRINT THERAPEUTICS SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of existing dental implants, bone powder is usually used to fill alveolar defects, but traditional bone powder filling has the following defects: 1. High cost; 2. The shape of bone powder is poorly maintained, and it is not easy to control the formation area of ​​new alveolar bone, and Due to the shapeless characteristics of bone powder, the bone powder may overflow from the suture site when it is subjected to unexpected compression after subsequent sutures, resulting in loss of bone powder, which ultimately leads to a decrease in the filling effect; 3. The height of the new alveolar bone is insufficient, based on the shape of the bone powder itself Poor retention, insufficient support, and instability such as postoperative atrophy of the sutured surface lead to the final filling area often not reaching the desired height, which ultimately affects the stability and aesthetics of the implant; 4. For the patient Specific alveolar bone defects are not targeted, and it is difficult to carry out targeted defect repair for specific individuals, resulting in poor cosmetic results
However, the existing 3D prosthesis often improves the repair effect of the prosthesis by optimizing the material, but it is difficult to achieve a high degree of matching between the alveolar bone prosthesis and the growth of human bone tissue, making it difficult to effectively control the final repair effect. not effectively

Method used

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  • Alveolar bone augmentation support system
  • Alveolar bone augmentation support system
  • Alveolar bone augmentation support system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figure 4 The mechanical baffle 2 shown, preferably adopts the 3D printing method to print the composite material PCL (molecular weight Mn=2W):PLGA (the ratio of PLA to PGA is 50:50)=1:1 according to the defect surface of the patient and form a With a bionic structure that matches the defect surface, the above-mentioned composite material has the technical effect of degrading faster and providing sufficient mechanical support for the scaffold in the early stage of scaffold degradation. In order to further fix the above-mentioned mechanical baffle 2 on the outside of the bracket main body 1 to ensure the effectiveness of the support, the mechanical baffle 2 in the present invention has a through hole 21 whose size is suitable for matching with a degradable screw. Easy to fix with nails.

[0041] like Figure 4 As shown, under the action of the bending force F, the mechanical baffle 2 is bent from a plane configuration to a bending configuration matching the shape ...

Embodiment 2

[0044] As an alternative to the preparation method of the mechanical baffle in Example 1, in this embodiment, a shaping template 3 is used to assist in shaping the mechanical baffle 2 . Specific as Figure 5 As shown, in this embodiment, a shaping template 3 is firstly prepared, and the surface of the shaping template 3 has protrusions uniformly arranged, and correspondingly, the through holes on the mechanical baffle 2 are matched with these protrusions. In the process of preparing the mechanical baffle 2 with a curved configuration, the shaped template 3 is first bent to a curved configuration that matches the alveolar bone defect surface, and then the mechanical baffle 2 to be shaped is placed on the curved shaped template 3 inside, and make the protrusion on the shaping template penetrate the through hole on the mechanical baffle 2 to locate the mechanical baffle 2, and then place the mechanical baffle 2 fixed on the shaping template 3 in warm water, under the action of he...

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Abstract

An alveolar bone augmentation stent system, the stent system includes the following structure: a bone augmentation stent, filling the alveolar bone defect, and having a three-dimensional porous structure formed by composite polymer materials through 3D printing; a mechanical baffle , wrapped outside the bone augmentation bracket, and has a bionic structure for restoring alveolar bone defect surface; In the third area outside the second area, the diameters of pores in the three-dimensional porous structure of the above three areas are R1, R2 and R3 respectively, and R1≥R2>R3. The alveolar bone augmentation bracket system has the technical effect of highly matching the growth rate of the alveolar bone and effectively promoting the regeneration of the alveolar bone.

Description

technical field [0001] The invention belongs to the medical field, in particular, the invention relates to a 3D printed alveolar bone augmentation bracket system in the field of stomatology. Background technique [0002] In the process of existing dental implants, bone powder is usually used to fill alveolar defects, but traditional bone powder filling has the following defects: 1. High cost; 2. The shape of bone powder is poorly maintained, and it is not easy to control the formation area of ​​new alveolar bone, and Due to the shapeless characteristics of bone powder, the bone powder may overflow from the suture site when it is subjected to unexpected compression after subsequent sutures, resulting in loss of bone powder, which ultimately leads to a decrease in the filling effect; 3. The height of the new alveolar bone is insufficient, based on the shape of the bone powder itself Poor retention, insufficient support, and instability such as postoperative atrophy of the sutu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C5/20
CPCA61C5/20A61L2430/12B33Y80/00A61L27/56A61L27/50A61L27/26A61L27/46C08L67/04A61L27/222A61L27/24
Inventor 柯东旭杨熙
Owner NOVAPRINT THERAPEUTICS SUZHOU CO LTD