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Maxillary sinus external lifting operation auxiliary guide plate and preparation method thereof

A technique for maxillary sinus surgery, applied in the field of auxiliary guide plate for maxillary sinus lifting surgery and its preparation, which can solve the problems of high risk of maxillary sinus mucosa perforation, high requirements for surgeons, and complex structure of maxillary sinus, so as to avoid maxillary sinus The risk of mucosal perforation, increasing the scope of popularization, and the effect of promoting

Pending Publication Date: 2019-01-18
PEKING UNIV SCHOOL OF STOMATOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, due to the complex structure of the maxillary sinus and the varying thickness of the sinus wall, the external lifting of the maxillary sinus is difficult, and the risk of perforation of the maxillary sinus mucosa is relatively high; in addition, the requirements for the surgeon are high and experience is necessary Rich surgeon to complete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment is a preparation method of a guide plate for auxiliary maxillary sinus lifting surgery, the preparation method includes the following steps:

[0031] (a) Using CT to obtain the scanning data of the posterior implant area and the adjacent area of ​​the implant area, and then using the imaging processing software that comes with CT to reconstruct the scanning data into three-dimensional data;

[0032] (b) Import the reconstructed three-dimensional data into the reverse engineering software Geomagic, and extract the maxillary sinus lifting operation area, and then extend the maxillary sinus lifting operation area to the palatal side of the implant area and the adjacent area of ​​the implant area;

[0033] (c) Thicken the extended maxillary sinus lifting operation area to 2 mm, and reserve an opening with the same size and shape as the fenestration hole at the corresponding position of the fenestration hole, and then lift the thickened maxillary sinus externa...

Embodiment 2

[0036] This embodiment is a preparation method of a guide plate for auxiliary maxillary sinus lifting surgery, the preparation method includes the following steps:

[0037] (a) MRI is used to obtain the scan data of the posterior dental implant area and the adjacent area of ​​the implant area, and then the scanned data is reconstructed into three-dimensional data by using the MRI's built-in imaging processing software;

[0038] (b) Import the reconstructed three-dimensional data into the reverse engineering software Imageware, and extract the maxillary sinus lifting operation area, and then extend the maxillary sinus lifting operation area to the palatal side of the implant area and the adjacent area of ​​the implant area;

[0039] (c) Thicken the extended maxillary sinus lifting operation area to 2mm, reserve 2 retention holes in the peripheral bone structure of the extended maxillary sinus lifting operation area, and reserve 2 holes at the corresponding positions of the fenes...

Embodiment 3

[0042] This embodiment is a preparation method of a guide plate for auxiliary maxillary sinus lifting surgery, the preparation method includes the following steps:

[0043] (a) CBCT was used to obtain the scanning data of the posterior dental implant area and the adjacent area of ​​the implant area, and then the scanning data was reconstructed into three-dimensional data by using the imaging processing software of CBCT;

[0044] (b) Import the reconstructed three-dimensional data into the reverse engineering software Geomagic, and extract the maxillary sinus lifting operation area, and then extend the maxillary sinus lifting operation area to the palatal side of the implant area and the adjacent area of ​​the implant area;

[0045] (c) Thicken the extended maxillary sinus lifting operation area to 1.5 mm, reserve 3 retention holes in the peripheral bony structure of the extended maxillary sinus lifting operation area, and place them at the corresponding positions of the fenestr...

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Abstract

The invention discloses a maxillary sinus external lifting operation auxiliary guide plate and a preparation method thereof. The preparation method comprises the following steps of: obtaining scanningdata of a posterior tooth grafting area, a corresponding maxillary sinus area and an adjacent area, and reconstructing the scanning data into three-dimensional data; the maxillary sinus elevation region was extracted from the reconstructed three-dimensional data and extended to the palatal side of the implantation region and the adjacent region. The extended external maxillary sinus lifting operation area was thickened, and an opening was reserved at the corresponding position of the fenestration hole, and then the boundary of the thickened external maxillary sinus lifting operation area wasfused and preserved. The maxillary sinus external lifting operation auxiliary guide plate is obtained by printing that saved data through a printing device; The method can prepare individualized auxiliary guide plate for different patients, ensure the matching between the auxiliary guide plate and different patients, and improve the accuracy of maxillary sinus external lifting operation; In addition, the method is easy to operate and low in cost, which is easy to be popularized.

Description

technical field [0001] The invention relates to the technical field of oral implantology, in particular to a guide plate for assisting maxillary sinus lifting surgery and a preparation method thereof. Background technique [0002] Due to physiological and pathological reasons such as pneumatization of the maxillary sinus cavity and alveolar bone resorption, implant surgery in the posterior maxillary region often faces the problem of insufficient vertical bone volume, which makes dental implant surgery in this area face great limitations and challenges. Maxillary sinus lift surgery is suitable for patients with severe alveolar ridge atrophy in the missing area, and the vertical bone volume between the maxillary sinus floor and the alveolar process cannot meet the implant requirements. [0003] Maxillary sinus external lift, also known as maxillary sinus open lift, is to open a window on the side wall of the maxillary sinus, peel off the maxillary sinus floor mucosa under dire...

Claims

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Application Information

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IPC IPC(8): A61C8/00B33Y80/00
CPCA61C8/009A61C8/0092B33Y80/00
Inventor 原福松梁姗姗吕培军
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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