Microscopic root canal trephine capable of controlling cutting depth

A technology of cutting depth and trephine, which is used in medical science, filling teeth, and adding protective layers. Compact, minimal root damage

Active Publication Date: 2013-11-27
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of root canal treatment, the instruments used to cut the infected dentin are sometimes broken, and the use of root canal trephine to remove a small amount of dentin around the broken instrument can make the broken instrument loose and easy to take out, but the existing root canal trephine There is no effective method to control the depth of cutting. If cutting too deep, it will easily damage the dentin. If cutting too shallow, the treatment effect will not be achieved.

Method used

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  • Microscopic root canal trephine capable of controlling cutting depth
  • Microscopic root canal trephine capable of controlling cutting depth
  • Microscopic root canal trephine capable of controlling cutting depth

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Such as figure 1 , 4 A microscopic root canal trephine that can control the cutting depth is shown, including a trephine body 1, one end of the trephine body 1 has a cutting edge 10, and the other end has a shank 11, wherein: the total length of the trephine body 1 is 34mm, effective length 21mm, outer diameter φ1.2mm, inner diameter φ0.9mm, inner hole depth 9mm. The trephine body 1 has a measurement area for measuring its depth into the root canal 20 , the distance d from a certain scribe line in the measurement area to the cutting edge 10 is consistent with the distance d from the tooth occlusal surface or edge ridge 21 to the root canal 20 .

[0021] In this embodiment: the measurement area has a plurality of ring lines 12 engraved on the trephine body 1, the ring line 12 is perpendicular to the axis of the trephine body 1, and the distance between two adjacent ring lines 12 is equal, and the ring line 12 is used as the measurement The scale of the area. Tak...

Embodiment 2

[0023] Such as figure 2 As shown: this embodiment is basically the same as Embodiment 1, the difference is that the measurement area has a plurality of color coils 13 sleeved on the trephine body 1, the color coils 13 are perpendicular to the axis of the trephine body 1, and the color coils 13 are vertical to the axis of the trephine body 1. The widths of the coils 13 are equal, and the color coils 13 are also used as the scale of the measurement area. The color coils 13 can be arranged at intervals of various colors (white, red, yellow, blue, green, black, etc.). Taking the color coil 13 with a width of 1 mm as an example, there are 10 color coils 13, that is, the scale is 10 mm. Before cutting, if the distance d between the root canal 20 and the occlusal surface of the tooth or the edge ridge 21 is 10 mm, then the trephine body 1 extends into the tooth 2 by the same 10 mm, and the cutting edge 10 is located at the root canal 20, so that the trephine body 1 is at the botto...

Embodiment 3

[0025] Such as image 3 As shown: this embodiment is basically the same as Embodiments 1 and 2, the difference is that the measurement area also has a scale ring 14 sleeved on the trephine body 1, and the scale ring 14 can move along the axis of the trephine body 1 To move, its end face is perpendicular to the axis of the trephine body 1, the edge of the end face below the scale ring 14 is used as an index line to align with the ring line 12 or the color coil 13, and the number of grids moved by the recording scale ring 14 is accurately judged. The depth of the drill body 1 cut.

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PUM

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Abstract

The invention relates to a microscopic root canal trephine capable of controlling the cutting depth. The microscopic root canal trephine comprises a trephine body, wherein a cutting edge is formed on one end part of the trephine body; the trephine body is provided with a measuring region for measuring the depth of a stretched root canal; the measuring region is sleeved with a scale ring which can move along the axial direction of the trephine body; the lower end face of the scale ring can be contacted with a tooth occlusal face or a marginal ridge. The microscopic root canal trephine capable of controlling the cutting depth, provided by the invention, is compact in structure, reliable in work and convenient to operate, can improve the treating quality, has slight damages to tooth roots, avoids accidental injuries to a patient and is applicable to controlling the cutting depth of various types of the root canal trephines.

Description

technical field [0001] The invention relates to a microscopic root canal trephine, in particular to a microscopic root canal trephine capable of controlling the cutting depth. Background technique [0002] Root canal therapy is the basic method and the best choice for endodontics and periapical diseases. The principle of root canal therapy is to use cutting instruments to expand the root canal, and after disinfection and flushing, fill the root canal with special materials or install a crown to prevent Periapical lesions occur or promote the healing of periapical lesions that have occurred. In the process of root canal treatment, the instruments used to cut the infected dentin are sometimes broken. Using a root canal trephine to remove a small amount of dentin around the broken instrument can make the broken instrument loose and easy to take out, but the existing root canal trephine There is no effective method to control the depth of cutting. If the cutting is too deep, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C3/02A61C5/02
Inventor 范兵边专
Owner WUHAN UNIV
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