artificial tooth root implant structure

Abstract

This invention relates to an artificial tooth implant structure, comprising a bolt seat, a tooth implant, and a crown abutment. The bolt seat has a central tubular connecting portion with internal threads on its inner side. Four symmetrical limiting slots are located at the lower end of the tubular connecting portion. Radial support plates are located beside each limiting slot. A first positioning bolt and a second positioning bolt are respectively inserted into the four limiting slots of the tubular connecting portion, arranged in a cross configuration with the first positioning bolt below and the second positioning bolt above. The lower bend of the first positioning bolt and the upper bend of the second positioning bolt interlock, causing the first... The positioning parts of the first and second positioning bolts are inserted into the limiting slots of the tubular connecting part, and the root implant system is connected to the bolt seat. The crown abutment is provided with a threaded part below it. The threaded part is screwed into the threaded part inside the tubular connecting part of the bolt seat, so that the crown abutment is screwed onto the bolt seat. By means of the two sharp points of the first and second positioning bolts in the bolt seat, when the root implant is placed into the alveolar socket on the alveolar bone, the crown abutment is rotated and the positioning bolts are pressed down, so that the sharp points are slightly inserted into the alveolar bone, so that the root implant can be stably fixed in the alveolar socket on the alveolar bone.

Claims

1. An artificial tooth root implant structure, comprising a bolt seat, a tooth root implant, and a crown abutment; the bolt seat has a tubular connecting part at its center, with internal threads on the inner side of the tubular connecting part; four symmetrical limiting slots are provided at the lower end of the tubular connecting part, each limiting slot having a circular hole above it; radial support plates are provided on the sides of each limiting slot of the tubular connecting part, each support plate having a U-shaped groove at its bottom; the tubular connecting part and the bottom of each support plate are connected by a base plate, with a recess at the base plate at the bottom of the tubular connecting part; a first positioning bolt and a second positioning bolt are respectively inserted into the four limiting slots of the tubular connecting part; the first positioning bolt is bow-shaped, with spikes at both ends and a downward bend in the middle, with narrower positioning portions on both sides of the downward bend; the second positioning bolt is bow-shaped, with... It has a spiked part, and the middle part has an upward bend. On both sides of the upward bend, there are positioning parts with a narrower width. When the first positioning bolt and the second positioning bolt are inserted into the lower end of the tubular connecting part, they pass through the circular holes on the limiting slots. They are in a cross shape with the first positioning bolt below and the second positioning bolt above. The lower bend of the first positioning bolt and the upper bend of the second positioning bolt are hooked together, so that the positioning parts of the first positioning bolt and the positioning parts of the second positioning bolt are placed into the limiting slots of the tubular connecting part. The root implant system is connected to the bolt seat and its upper edge is flush with the upper edge of the root implant. The root implant and the U-shaped grooves of the bolt seat support plates are provided with through holes. The crown abutment has a threaded part below it. The threaded part is recessed on the lower end face of the threaded part. The threaded part is screwed into the threaded part of the tubular connecting part of the bolt seat, so that the crown abutment is screwed onto the bolt seat.

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