3D printing step-back type jaw cyst plugging treatment device and preparation method thereof

Abstract

The invention relates to the field of auxiliary medical instruments, and particularly relates to a 3D printing step-back type jaw cyst plugging treatment device and a preparation method thereof. The 3D printing step-back type jaw cyst plugging treatment device is integrally formed and comprises a functional part, a retention part and a penetrating part connected between the functional part and the retention part, wherein the functional part is designed according to the CT data cyst cavity form of a patient, is made of an elastic material, is smaller than the cyst cavity of the patient in size and is used for protruding into the cyst cavity of the patient; and the retention part is designed according to the tooth body and gingival tissue conditions around an opening to achieve a retention effect, and a dental crown clamping and holding type and / or a mucous membrane supporting type are / is designed according to oral cavity scanning data. The 3D printing step-back type jaw cyst plugging treatment device is designed according to the CT data cyst cavity form of the patient and is smaller than the cyst cavity, meanwhile, the in-place convenience is considered, the plugging treatment device is manufactured in a 3D printing step-back mode, a doctor can design the shape and size of the plugging treatment device according to the cyst form of the patient, the manufactured plugging treatment device is more adaptive, and the manufacturing process is simpler and more convenient.

Description

technical field [0001] The invention relates to the field of auxiliary medical devices, in particular to a 3D printed step-back jaw cyst stopper and a preparation method thereof. Background technique [0002] Jaw cystic lesion is one of the common benign lesions in the oral and maxillofacial region. For large cystic lesions of the jaw, fenestration decompression is the first choice for clinical treatment. The reason is that it has less trauma and is easy to operate. Fenestration and decompression can often effectively reduce the cyst cavity, and even if a second cyst curettage is required, the damage to adjacent anatomical structures will be greatly reduced. The plug is the key device to ensure the decompression effect of window opening. Traditional plugging devices such as removable partial denture mucosa tooth support plugging device, ring lip bow type plugging device and silicone rubber drainage plugging device and so on. These stoppers need to be made on plaster mode...

AI Technical Summary

Problems solved by technology

There are several problems: one is that the model cannot accurately reflect the situation in the mouth

Because the mouth opening degree of the patient is reduced after the operation, and the opening position is not limited to the alveolar ridge, the plaster model taken may not accurately reflect the actual situation in the mouth, which ultimately affects the smooth placement of the plug

The second is the fracture residue of the impression material

Because the cavity opening is often smaller than the inner diameter of the cavity, the material is easy to break and leave the cavity when the impression is made, which increases the risk of postoperative infection

Thirdly, the production cycle of the plugging device based on the plaster model is long, which increases the risk of cyst infection and window reduction

Fourth, for large cysts with multiple directions, there is a possibility of leaving distal cysts due to premature healing of the window and premature bone formation near the opening after fenestration, resulting in failure of fenestration treatment

However, there are many aspects that need to be improved, including the early healing of the large jaw cyst near the window after fenestration, leaving a distal cyst cavity, which leads to the failure of fenestration treatment, and the inconvenience of self-rinsing for patients with deep fenestrations, etc.

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