Drill set used on tooth thread planting clamp having self threading function

Abstract

A drill set for adjusting an implant hole for a self-tap dental screw implant fixture comprises a first drill 2 with a diameter d2 at the point of a cutting blade equivalent to a diameter D3 Of the tip end of the fixture, a diameter d1 at the back end of the blade equivalent to the maximum root diameter of a first male screw 1e or smaller, and a length l1 of the blade larger than the entire length L1 of the fixture 1, and the second drill 3 with a diameter d5 at the point of a tapered tip end cutting blade 3b equivalent to the diameter D3, and a diameter d3 at the back end of a tapered back end cutting blade 3a equivalent to the maximum root diameter of the first male screw 1e and being smaller than the maximum crest diameter thereof, both the blades 3a, 3b forming two-step taper shape.

Description

technical field [0001] The invention relates to a drill set, which is used for a tooth thread planting jig with self-tapping function. When dental implants are used to replace missing teeth with fabricated dentures to restore lost function, a drill set is used to create and eventually adjust implant holes in the jawbone where the missing teeth are, with self-tapping threads at the end A functional dental threaded implant fixture is implanted in it. Background technique [0002] As denture techniques for missing teeth, techniques using bridges and techniques using trays are common. [0003] However, in the technique using a bridge, healthy natural teeth on both sides of the missing tooth are cut to form a bridge pier, and the denture at the missing tooth is fixed between metal parts that are joined and fixed to the pier between. Therefore, not only healthy natural teeth must be cut in order to provide dental abutments, but there is also the disadvantage that occlusal press...

AI Technical Summary

Problems solved by technology

Therefore, in the case where the implant hole is formed by a drill bit, the drilling depth thereof is approximately equal to the implant length of the dental thread implant jig with self-tapping function, and the tapered portion at the end of the dental thread implant jig with self-tapping function Does not come into contact with the jawbone and therefore does not ensure stability during fixation

On the other hand, in the case where the implant hole has a length corresponding to the starting point of the tapered portion of the end of the dental implant jig with self-tapping thread, it has the disadvantage that the amount of time provided at the end of the dental implant jig with self-tapping thread is increased. The amount of cutting of the jawbone by the cutting edge of the tapered part not only prevents the chips of the jawbone from being accommodated in the concave part continuously provided with the cutting blade piece, but also exerts a large load on the uncut jawbone, Also, the stability of the fixation cannot be ensured by applying an appropriate load to the collagen of the jawbone

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