Connecting and sealing structure of oral implant-base

Abstract

The invention provides a novel connecting structure of an oral implant-base. A neck part of an implant is provided with an upper columnar hole, a middle taper hole, a positioning hole, and a lower thread hole from top to bottom; a sealing ring with the thickness of 0.1-0.5 mm is arranged between the upper columnar hole and the base. The sealing ring is made of medical high polymer material (polytetrafluoroethylene, silicon rubber, natural rubber, and the like); the neck part of the implant is connected with the base to remove a microgap between the base and the implant and stop the stress transmitting to the neck part of the implant directly; therefore, the structure has the function of adjustable stress transmission and distribution, the intensity of directly transmitting the implant stress to a cortical bone can be reduced, the absorption of the cortical bone can be removed or decreased; the structure is beneficial to reconstructing the physiology of bone organizations around the implant; meanwhile, with the adoption of the structure, the negative effects of the microgap between the implant and the base, and the metal grinding are avoided; the problems of atrophic cortical bone and bred microorganisms are effectively avoided.

Description

technical field [0001] The invention relates to an oral implant-abutment connection sealing structure, which belongs to the field of medical instruments. Background technique [0002] The oral implant device is the main part of the current oral implant denture. At present, the main problems in the field of oral implant include: 1. Bone resorption at the implant-abutment interface: According to previous research, the implant-abutment interface will occur vertically 1-2mm and horizontally about 1.5mm one year after implantation 2. Implant-abutment interface micro-gap: Although modern processing technology is increasingly advanced, there is inevitably a micro-gap at the interface between the implant and the abutment. On the one hand, it provides a channel for microbial leakage inside and outside the implant, and on the other hand, it causes micro-movement of the implant components; 3. Mechanical grinding of the implant-abutment interface: the micro-motion between the implant c...

AI Technical Summary

Problems solved by technology

At present, the main problems in the field of oral implant include: 1. Bone resorption at the implant-abutment interface: According to previous research, the implant-abutment interface will occur vertically 1-2mm and horizontally about 1.5mm one year after implantation 2. Implant-abutment interface micro-gap: Although modern processing technology is increasingly advanced, there is inevitably a micro-gap at the interface between the implant and the abutment. On the one hand, it provides a channel for microbial leakage inside and outside the implant, and on the other hand, it causes micro-movement of the implant components; 3. Mechanical grinding of the implant-abutment interface: the micro-motion between the implant components causes the implant surface and the abutment to fret. External mechanical grinding, when the abutment is stressed, metal fines may be "pumped out" of the implant-abutment interface and enter the surrounding soft tissue, causing discoloration of the soft tissue and other problems; 4. Soft and hard tissue inflammation around the micro-gap: implants Microorganisms that may exist in the cavity enter the soft and hard tissues around the implant through the micro-gap under the action of the "pump effect", causing inflammation of the soft tissue around the implant, and even induce bone resorption

However, this patent application does not specify the depth and width of the tiny gap

In this case, the inventor found that in the shallow and wide gap, there may be gingival tissue or bone cells entering, but under the condition of long-term large stress, this type of tissue cannot exist stably for a long time; and In deep or narrow gaps, blood vessels cannot grow in, and soft tissue and bone tissue cannot exist stably for a long time

Therefore, whether the above-mentioned patent application can achieve the stated effect cannot be predicted by its disclosure content.

At the same time, the implant device provided in this patent application still has a gap, which not only cannot avoid the problems of fretting, grinding and microbial growth between the implant and the abutment, but also causes the cortical bone to shrink due to long-term stress-free action

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