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Dental bur

A kind of bur and dental technology, applied in dentistry, dental prosthesis, dental tools, etc., can solve the problems of not being able to effectively meet high speed, weak structural stability, complex process, etc., to improve practicability and service life, and improve combination performance effect

Pending Publication Date: 2021-11-19
SHANGHAI KEFU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the manufacturing process mainly includes electroplating method and sintering method, which have the defects of poor production control, complicated process, high cost and weak structural stability, and cannot effectively meet the demand for high speed

Method used

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  • Dental bur

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Its raw material of the solder of the brazing layer of the dental bur in the present embodiment comprises, by mass fraction, 45 parts of copper, 9 parts of silver, 30 parts of zinc, 2.8 parts of nickel, and particle diameter is 0.5 parts of graphene powder material of 80 microns. parts, 0.2 parts of magnesium carbonate, and 0.95 parts of rosin.

[0022] The preparation method includes: light material treatment: spread the graphene oxide powder in the reaction chamber, and after vacuuming to 5Pa, feed a mixed gas of methane and Ar gas, wherein the volume ratio of methane is 5%, and the volume ratio of methane is controlled. The flow rate is 40sccm, the mixed gas pressure is adjusted to 100Pa, and then the working temperature is raised to 600°C. After reaching the working temperature, the RF power is turned on, and the RF power is adjusted to 150W. After processing for 17 minutes, cool with the furnace, and then mix with magnesium carbonate powder and rosin powder Finally...

Embodiment 2

[0026] Its raw material of the solder of the brazing layer of the dental bur in the present embodiment comprises, by mass fraction, 55 parts of copper, 12 parts of silver, 25 parts of zinc, 2.3 parts of nickel, and particle diameter is the graphene powder material 1 of 200 microns Parts, 0.28 parts of magnesium carbonate, 0.85 parts of rosin.

[0027] The preparation method includes: light material treatment: spread the graphene oxide powder in the reaction chamber, and after evacuating to 5Pa, feed a mixed gas of methane and Ar gas, wherein the volume ratio of methane is 10%, and control the volume ratio of methane The flow rate is 30sccm, the mixed gas pressure is adjusted to 500Pa, and then the working temperature is raised to 700°C. After reaching the working temperature, the RF power is turned on, and the RF power is adjusted to 160W. After processing for 15 minutes, it is cooled with the furnace, and then mixed with magnesium carbonate powder and rosin powder Finally, it...

Embodiment 3

[0031] Its raw material of the solder of the brazing layer of the dental bur in the present embodiment comprises, by mass fraction, 50 parts of copper, 8 parts of silver, 40 parts of zinc, 2.5 parts of nickel, and particle diameter is the graphene powder material 0.7 of 100 microns. part, 0.3 part of magnesium carbonate, and 0.9 part of rosin.

[0032]The preparation method includes: light material treatment: spread the graphene oxide powder in the reaction chamber, and after evacuating to 5Pa, feed a mixed gas of methane and Ar gas, wherein the volume ratio of methane is 6%, and control the volume ratio of methane The flow rate is 20sccm, the mixed pressure is adjusted to 200Pa, and then the working temperature is raised to 1000°C. After reaching the working temperature, the RF power is turned on, and the RF power is adjusted to 170W. After processing for 25 minutes, it is cooled with the furnace, and then mixed with magnesium carbonate powder and rosin powder Finally, it is ...

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Abstract

The invention discloses a dental bur. The dental bur comprises a bur body and a base body, a brazing structure is further formed on the surface layer of the end, away from the base body, of the bur body, and the brazing structure comprises an abrasive material and a brazing layer used for brazing the abrasive material to the bur body. The dental bur adopting the specific brazing form has the advantages of good machinability and stable structure, the silver-based brazing filler metal has better sterilizing and antibacterial capabilities, meanwhile, the defect of interface brittleness of the traditional silver-based brazing filler metal is overcome, and a longer service life is obtained.

Description

technical field [0001] The present invention relates to clinical dental appliances, in particular to a dental bur. Background technique [0002] Diamond burs are an important dental equipment. Clinically, diamond burs are mainly used for tooth preparation, pit and fissure forming, hard fillings and dental metal material cutting. Denture processing plants use diamond burs mainly for dentures. Grinding. Whether it is clinically used burs or burs used in denture processing factories, there are various shapes and structures. Each dentist or technician uses burs of different specifications and shapes according to their own operating habits and usage methods for tooth preparation or grinding. , and finally achieve tooth preparation and denture grinding. At present, there are two main manufacturing processes: electroplating and sintering, which have defects such as poor production control, complex process, high cost, and weak structural stability, and cannot effectively meet the ...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/02A61C3/00A61C13/08A61C13/34B24D18/00
CPCB23K35/302B23K35/0255A61C3/00A61C13/08A61C13/34B24D18/0072
Inventor 万武辉
Owner SHANGHAI KEFU NEW MATERIAL TECH
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