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Method for removing contaminants on surface of dental root canal file

A technology for root canal files and pollutants, which is applied to chemical instruments and methods, cleaning methods and utensils, sanitary equipment for toilets, etc. The effect of high processing efficiency and high power density

Inactive Publication Date: 2011-10-19
NANJING MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the idea of ​​the present invention is to use non-reactive argon plasma to treat the surface of dental root canal files. Because argon plasma has the function of charging and collecting dust, a large number of electrons and pollutants in the plasma Inelastic collision occurs and adheres to its surface to charge it. Under the action of an electric field, particulate pollutants are collected by the dust collector, thus solving the problem that the surface pollutants of dental root canal files are difficult to remove

Method used

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  • Method for removing contaminants on surface of dental root canal file
  • Method for removing contaminants on surface of dental root canal file
  • Method for removing contaminants on surface of dental root canal file

Examples

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Embodiment 1

[0026] (1) Put the dental root canal files after the steps of manual scrubbing with flowing water, enzyme washing and ultrasonic cleaning in sequence into the platform between the upper and lower electrodes of the low-temperature plasma surface treatment machine, and place the dental root canal files It should not exceed the height between the upper and lower electrodes, root canal files should not be stacked, and the placement area should not exceed the metal part area of ​​the upper and lower electrodes;

[0027] (2) Use a vacuum pump to evacuate the system to 2000Pa to form a subatmospheric pressure condition. Subatmospheric glow discharge has the advantages of high atmosphere content, high power density, high processing efficiency, and short processing time, and its processing efficiency is more than 10 times higher than that of low pressure glow discharge;

[0028] (3) Argon is used as the processing gas, and the gas flow rate is adjusted to 1.2m 3 / h, the inflation time...

Embodiment 2

[0033] (1) Put the dental root canal files after the steps of manual scrubbing with flowing water, enzyme washing and ultrasonic cleaning in sequence into the platform between the upper and lower electrodes of the low-temperature plasma surface treatment machine, and place the dental root canal files It should not exceed the height between the upper and lower electrodes, root canal files should not be stacked, and the placement area should not exceed the metal part area of ​​the upper and lower electrodes;

[0034] (2) Use a vacuum pump to evacuate the system to 1800Pa to form a subatmospheric pressure condition. Subatmospheric glow discharge has the advantages of high atmosphere content, high power density, high processing efficiency, and short processing time, and its processing efficiency is more than 10 times higher than that of low pressure glow discharge;

[0035] (3) Argon is used as the processing gas, and the gas flow rate is adjusted to 1.5m 3 / h, the inflation time...

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Abstract

The invention discloses a method for removing contaminants on the surface of a dental root canal file, comprising the following steps: (1) placing the dental root canal file on a platform between upper and lower electrodes of a low temperature plasma surface treatment device; (2) vacuumizing a system to the subatmospheric pressure; (3) taking argon as the gas to be treated and regulating the gas flow between 1.2m3 / h and 1.5m3 / h and filling time between 10s and 15s; (4) starting the switch of the glow discharge low temperature plasma surface treatment device, so that the system automatically discharge to treat the surface of the dental root canal file; and (5) after discharge completion, the system automatically breaking vacuum and completing treatment process. In the method of the invention, the effect of the non-reactive argon plasma in collecting charged suspend particles is adopted, so that mass electrons in the plasma collide with the contaminants in an inelastic manner and adhereto the surface of the contaminants to enable the contaminants to be charged, and under electric field, the particle contaminants are collected by a collecting electrode, thereby realizing the goal ofeffectively removing the contaminants on the surface of the dental root canal file.

Description

technical field [0001] The invention relates to a disinfection method for oral cavity diagnosis and treatment instruments, in particular to a method for removing pollutants on the surface of dental root canal files. Background technique [0002] The Ministry of Health's notice on printing and distributing the "Technical Specifications for Disinfection of Dental Diagnosis and Treatment Instruments in Medical Institutions" (Wei Yifa [2005] No. 73) requires: 1. All diagnosis and treatment instruments entering the patient's mouth must meet the requirements of "one person, one use, one disinfection or sterilization Bacteria" requirements. 2. All kinds of oral diagnosis and treatment instruments that come into contact with patients’ wounds, blood, damaged mucous membranes or enter human sterile tissues, including dental handpieces, burs, root canal treatment instruments, tooth extraction instruments, surgical treatment instruments, periodontal treatment instruments, dressings, etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B7/00A61L2/14
Inventor 张怀勤姚红黄彦杨建荣陆金星沈鸽兰马俊驰陈淑吴红梅王宇群陆英群袁苗卞洁金思远
Owner NANJING MEDICAL UNIV