Porous structure titanium implant for dental implant

Abstract

The invention discloses a porous structure titanium implant suitable for dental implants. The porous structure titanium implant comprises an upper section, a middle section and a lower section. The upper section is a dense body, and the upper part of the outer layer of the upper section is provided with tapered threads inclined from the bottom to the inside; The lower part of the outer layer of the upper section is provided with a threaded tooth crest center concave to form a W-shaped sectional locking thread for increasing the initial stability of the implant. The inner core of the middle section is a dense body, the outer layer of the middle section is a communicating porous layer, and the porous layer provides a support for bone tissue growth and a bioactive coating. The lower section is a dense body, the outer layer of the lower section is provided with a self-tapping thread, and the end of the lower section is a flat end, and the end is provided with a cut with cutting function and intersects with the self-tapping thread. The invention effectively reduces the implantation difficulty, improves the implantation efficiency, the implantation success rate and the initial stabilityof the implantation.

Description

technical field [0001] The invention relates to the technical field of medical bioimplantation, in particular to a titanium implant with a porous structure suitable for dental implantation. Background technique [0002] Dental implants are the mainstream technology for tooth restoration. Currently, the commonly used clinical implants are dense. The implant materials are usually made of titanium and titanium alloys, which are biologically inert materials. There are the following technical problems: lack of active support during osseointegration It usually takes 3-6 months to form osseointegration, and the integration time is long; the elastic modulus of dense titanium (110GPa) is higher than that of bone (2GPa-18GPa), and its mechanical properties do not match those of surrounding bone, making it easy to Stress concentration and stress shielding effects occur at the implant interface, which is not conducive to the long-term stability of the implant; the bonding strength betwe...

AI Technical Summary

Problems solved by technology

[0002] Dental implants are the mainstream technology for tooth restoration. Currently, the commonly used clinical implants are dense. The implant materials are usually made of titanium and titanium alloys, which are biologically inert materials. There are the following technical problems: lack of active support during osseointegration It usually takes 3-6 months to form osseointegration, and the integration time is long; the elastic modulus of dense titanium (110GPa) is higher than that of bone (2GPa-18GPa), and its mechanical properties do not match those of surrounding bone, making it easy to Stress concentration and stress shielding effects occur at the implant interface, which is not conducive to the long-term stability of the implant; the bonding strength between the active coating on the implant surface and the matrix is ​​not high, and it is easily damaged by implant shear force, resulting in coating failure

However, the above-mentioned technical solution also has technical problems such as high difficulty in implantation, low efficiency, and poor initial stability of the implant.

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