Artificial implant tooth root based on shape memory alloy porous microstructure

Abstract

The invention relates to the technical field of artificial implant tooth roots, and discloses an artificial implant tooth root based on a shape memory alloy porous microstructure. The artificial implant tooth root comprises a tooth root core body, the tooth root core body is wrapped with a tooth root shell, and the periphery of the tooth root shell is provided with an external thread; the tooth root core body comprises a base and a porous microstructure which is in butt joint with the bottom of the base and has shape memory, and a threaded hole with an opening in the top is formed in the base;the periphery of the base is sleeved with an elastic backing ring, and the elastic backing ring is embedded into the inner side wall of the tooth root shell and abuts against the inner side wall of the shell from top to bottom; after the tooth root core body is subjected to longitudinal acting force, the porous microstructure is compressed and deformed, the porous microstructure is deformed and expanded, the side acting force applied to the tooth root shell is applied, and stress stimulation with a certain magnitude is performed on alveolar bone, so that the alveolar bone and an artificiallyimplanted tooth root have good biological material compatibility; the osteoporosis phenomenon caused by the stress shielding effect is avoided, and the possibility of failure caused by loosening and falling of the implant can be greatly reduced.

Description

technical field [0001] The patent of the present invention relates to the technical field of artificial implant root, in particular, it relates to the artificial implant root based on the porous microstructure of shape memory alloy. Background technique [0002] With the continuous development of additive manufacturing technology, more and more advanced technologies and materials are applied to medical devices, including alloy materials with shape memory properties. [0003] Porous microstructures are ubiquitous in nature, and often exist in inorganic substances and living organisms. Taking living organisms as an example, many biological tissues in nature, such as wood and bones, constitute their porous microstructures due to their composite shapes. Organized in layers, they are functional and have specific mechanical properties to suit the environment in which they are used. [0004] Shape memory alloys (SMAs) are new smart materials with shape memory function, which exhib...

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Problems solved by technology

[0007] The purpose of the present invention is to provide artificial implant roots based on the porous microstructure of shape memory alloys, aiming to solve the problem in the prior art that artificial implant roots cannot eliminate the stress shielding effect

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