Hypochlorous acid water is widely used to disinfect the waterways of oral treatment units, and its effectiveness and safety have been supported by multiple studies. According to evidence, HOCL water can effectively remove microbial contamination in the waterways of oral comprehensive treatment units, including bacteria, viruses and biofilms, due to its strong oxidizing properties and broad-spectrum bactericidal ability.
Disinfection effect: Multiple studies have shown that hypochlorous acid water has a significant killing effect on microorganisms in the waterway of the oral comprehensive treatment unit. For example, one study showed that the use of air hammer pulse flushing and disinfection with slightly acidic hypochlorous acid water containing 150 mg/L of available chlorine can reduce microbial contamination in oral handpiece connection ends and three-way gun water samples to acceptable levels. Another study pointed out that weakly acidic hypochlorous acid water has a significant effect on removing biofilm at high concentrations, while low concentrations can inhibit the growth of microorganisms in pipelines.
As a green disinfectant, hypochlorous acid water decomposes into water and sodium chloride, leaving no residue, being environmentally friendly and harmless to the human body. This makes it a relatively safe disinfection option, especially in dental environments, avoiding the secondary contamination problem that may be caused by traditional disinfectants.
Hypochlorous acid water is usually generated by an electrolytic water generator, and its effective chlorine content can be adjusted as needed. For example, BLUEWAV's hypochlorous acid generator can automatically adjust the effective chlorine content of the generated liquid according to the water consumption, thereby achieving efficient and intelligent disinfection. In addition, the use of hypochlorous acid water should also follow relevant technical specifications, such as the "Technical Specifications for Cleaning and Disinfection of Waterways of Oral Comprehensive Treatment Tables" to ensure the safety and effectiveness of the disinfection process.
Clinical Application
In clinical practice, hypochlorous acid water has been proven to be effective in reducing microbial contamination in the waterways of oral comprehensive treatment units and reducing the risk of cross-infection. For example, in one study, microbial contamination was significantly reduced after using hypochlorous acid disinfectant to disinfect dental treatment unit waterways.
After starting to disinfect DUWLs using slightly acidic hypochlorous acid for terminal disinfection, the number of bacterial colonies in the waterway has remained overall declining.
Downtrend. The number of bacterial colonies in the high-speed mobile phone pipeline water showed a sharp downward trend from the day before disinfection to the 7th day of disinfection, 28
The changing trend of bacterial colonies in Tianhou is relatively gentle, and the number of colonies is relatively stable, basically below 200cfu/mL. The disinfection level is 35
Days later, the bacterial colony count of the high-speed mobile phone pipeline water reached the qualified standard (≤200cfu/mL) (see Figure 2-2)
Ten comprehensive oral treatment units were randomly selected from them, including 2 extra-oral clinics, 4 intra-oral clinics,
There are 2 restorative clinics and 2 orthodontic clinics, which are numbered 1, 2, 3, 4, 5, 6, 7, 8, 9,10
According to the different conditions of the water circuit of the dental comprehensive treatment table, the effective chlorine content of hypochlorous acid water should be adjusted, and the following aspects should be considered:
Choice of available chlorine content:
The effective chlorine content of hypochlorous acid water directly affects its disinfection effect. Generally speaking, the higher the effective chlorine content, the better the disinfection effect, but it also increases corrosiveness. Therefore, when choosing hypochlorous acid water, the effective chlorine content should be adjusted according to the specific use environment and needs. For example, for scenarios that require long-term water supply, lower concentrations of hypochlorous acid water can be selected to reduce corrosiveness.
Effect of pH value:
The pH value of hypochlorous acid water affects its properties and stability. According to research, hypochlorous acid water can be divided into three types: slightly acidic, weakly acidic and strongly acidic. Slightly acidic hypochlorous acid water (pH value of about 6.5) has a good disinfection effect and is environmentally friendly, and is suitable for water disinfection of comprehensive oral treatment tables. The pH value of hypochlorous acid water can be adjusted by adding an appropriate amount of acid or alkali to ensure that it is used within the appropriate pH range.
Equipment and waterway transformation:
Using hypochlorous acid water for disinfection requires specialized equipment and modifications to the water system. This includes installing a device that can produce hypochlorous acid water and ensuring that the water system can adapt to the characteristics of hypochlorous acid water. If the existing equipment does not support the generation and use of hypochlorous acid water, it needs to be modified accordingly.
Specific preparation method:
For hypochlorous acid water that needs to be used directly, the BLUEWAV hypochlorous acid water generator can be adjusted to produce hypochlorous acid water with a concentration of 50 mg/L. This method is simple and easy to use and is suitable for daily disinfection needs.
Other notes:
When using hypochlorous acid water for disinfection, you should also pay attention to its impact on dental equipment and materials. Although hypochlorous acid water has a strong bactericidal ability, too high a concentration may cause corrosion on the surface of dental equipment and reduce the bonding performance of resin bonding materials. Therefore, in actual operation, it should be adjusted and used strictly in accordance with the recommended concentration range.
The technology of using hypochlorous acid water to disinfect the water channels of comprehensive oral treatment tables can effectively solve the problem of bacterial and microbial contamination caused by the small diameter of the water channels of comprehensive oral treatment tables and negative pressure back suction.
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