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Dental apparatus for shaping and cleaning a root canal

A technology for cleaning teeth and equipment, applied in dentistry, dental drilling, dental nerve/root treatment tools, etc., can solve the problems of reduced cutting efficiency, broken root canal files, etc.

Inactive Publication Date: 2009-01-28
MICRO MEGA INT MFG SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in less efficient cutting and in severe cases can cause the file to break off inside the tooth

Method used

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  • Dental apparatus for shaping and cleaning a root canal
  • Dental apparatus for shaping and cleaning a root canal
  • Dental apparatus for shaping and cleaning a root canal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] [30] figure 1 The endodontic file 10 is shown having a mandrel 12 shaped to fit into the drill bit of a dental bur handpiece, and a tapered, helically fluted working portion 14 . The file is designed to rotate in one direction and the flutes have leading edges that cut or scrape dentin from the canal wall of the tooth. As the files turn, they cut the dentin from the tooth wall and also collect the remaining soft pulp tissue.

[0031] [31] The endodontic file is manufactured from a flexible metal alloy whereby it can bend while still being able to turn in order to follow the curve of the root canal which may follow a tortuous course. The alloy's flexibility also means that the file "coils", that is, the file twists when torque is applied to the file head and when the file portion makes frictional contact with the root canal wall. This winding of the file will cause radial expansion of the portion of the file between the portion in frictional contact with the root canal...

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PUM

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Abstract

Apparatus is disclosed for use in cleaning dental root canals using an endodontic file. The file is mounted in a drill head driven by an electric motor. The motor is normally driven in one, forward direction but periodically the motor rotation is reversed for a very short time. The duration of the motor reversal is so short that although the motor rotates in the reverse direction, the inertia and backlash in the transmission between the motor output shaft and the drill head is such that the direction of rotation of the file in the root canal is not changed.

Description

technical field [0001] [01] The present application relates to the manipulation of dental root canals, and in particular to apparatus for reshaping and cleaning root canals in preparation for filling said root canals. Background technique [0002] [02] Root canal therapy is a term used to describe root canal treatment. Root canal treatment usually involves removal of completely damaged nerve tissue or pulp and some dentine, followed by cleaning and disinfection of the canal space, followed by sealing or filling of the canal to form a seal that prevents future bacterial entry. [0003] [03] The reshaping and cleaning of the root canal is carried out with a root canal file, which can be installed in a motorized drill or can be operated manually. The file can be moved in and out of the root canal and when manually operated the file can be turned like a wrist watch in both directions and can also be turned continuously in one direction . [0004] [04] A root canal file is a v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C5/02A61C1/00A61C5/40
CPCA61C1/003A61C1/12A61C5/02A61C1/06A61C5/40A61C1/00
Inventor D·M·舒斯特
Owner MICRO MEGA INT MFG SA
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