A disinfection device suitable for disinfection of water in a water line, wherein the device is adapted to receive water from the water line and for the disinfected water to exit the device. The disclosure also relates to a DUWL including the disinfection device, as well as a dental chair comprising the DUWL. Moreover, embodiments of the disclosure concern a method for disinfection of water in a water line.

An aqueous solution for intraoral cleaning via irradiation with ultraviolet ray and/or near-ultraviolet visible ray and/or ray in an 800-900 nm near-infrared region is employed as the hydrogen peroxide aqueous solution, wherein a concentration of hydrogen peroxide is 1 w/v % to 7 w/v %, and a concentration of a hydrogen peroxide stabilizer is 81 ppm (mg/L) or less in the aqueous solution.

An aqueous solution for intraoral cleaning via irradiation with ultraviolet ray and/or near-ultraviolet visible ray and/or ray in an 800-900 nm near-infrared region is employed as the hydrogen peroxide aqueous solution, wherein a concentration of hydrogen peroxide is 1 w/v % to 7 w/v %, and a concentration of a hydrogen peroxide stabilizer is 81 ppm (mg/L) or less in the aqueous solution.

A dental instrument water supply filter includes a hollow cylindrical body which bounds an interior area. The interior area houses a plurality of iodinated resin particles. A pair of water permeable discs are positioned in the interior area of the body at opposed axial ends. End caps close the interior area of the body at the respective opposed ends, and each end cap includes a respective removable fluid fitting. Water that is used in connection with the operation of a dental instrument is passed through the filter. The filter provides filtration and reduces microorganisms in the water that is passed therethrough and also releases ions into the water that are effective to reduce the growth of contaminants in the water lines to the instrument.

The present application relates to an oral irrigator, the oral irrigator includes at least a main body, a partition wall, a sterilization portion, and a control main board. By providing the partition wall, the first cavity and the second cavity are separated from each other, and the spray head is separately accommodated in the second cavity, and the first cavity is provided with the sterilization portion corresponding to the second cavity. The sterilization portion includes a UV lamp module. The second cavity and the spray head are sterilized through the UV lamp module, which effectively reduces the secondary pollution of the flushing fluid.

A self-cleaning suction device has a user's suction end that self-sanitizes externally and internally before and after use, as well as self-sanitizes internally during use. A cover opens to reveal the user's suction end within a containment unit. As the cover opens, the suction end travels from a lower chamber, proceeds through a middle chamber of a sanitizing agent, and is presented for use. After suction is complete, the suction end retracts through an upper chamber with, a scraping feature that removes debris from the outer surface of the mouthpiece, and proceeds down through the middle chamber of a sanitizing agent and a scraping feature that removes debris and the sanitizing agent from the outer surface of the user's suction end. Upon the sealing closure of the cover, the upper and middle chambers are flushed with a sanitizing agent, which is suctioned away along with any collected debris. The user's suction end resides within a lower chamber and can be decontaminated by a UV-C light entering into the lower chamber and/or corresponding chambers. The suction device can also include a liquid-hydration delivery system.

The present invention provides a method for dental cutting including the steps of providing a dental unit water line irrigation system, the dental unit water line irrigation system including a container surrounding a solution chamber; providing a lubricant for use in the dental unit water line irrigation system, the lubricant defining a composition including 10 to 25% by weight of ethanol; 5 to 25% by weight of glycerol; 10 to 25% by weight of xylitol; 0.5 to 5% by weight of a nonionic surfactant and emulsifying agent; 0.15 to 0.5% by weight of a plurality of flavoring agents; and 45 to 60% by weight of water; and selectively operating the water line irrigation system to express the lubricant onto a dental cutting site.

A water treatment dispensing apparatus has a container for holding water from a water supply and a water disinfectant cartridge located within the container. A housing attached to the container and connected to the cartridge directs water from the cartridge to a remote location, such as a dental instrument. An air pressure device supplies water under pressure to the container to force water to flow through the cartridge and to the remote location.

A method for automatically initiating a dental handpiece waterline flushing mode in a dental delivery system comprises detecting whether at least first and second handpiece waterlines from a plurality of handpiece waterlines are removed from respective first and second rest positions of a control head for the dental delivery system. According to some implementations, if it is determined that no additional dental handpiece waterline which is flushable remains in a rest position of the control head, then the dental handpiece waterline flushing mode is automatically initiated for the first and second dental handpiece waterlines. In some implementations, a display is updated to provide information to a user, and an input from the user is received to begin flushing.

A method and system to improve asepsis during dental delivery includes a self-contained water delivery apparatus and a vacuum apparatus both of which provide disinfection of biohazards occurring during dental procedures. A UVC LED light emitting unit, with sanitary connections, may be releasably connected to the delivery and vacuum apparatus for improved maintenance and cleaning. A reservoir egress connector provides releasable engagement, fluid agitation, and unrestricted UV light transmission to improve water quality, reduce biofilm water contamination, reduce cross contamination, and reduce the potential spread of pathogens. The mounting system for the UVC LED light unit allows the apparatus to be used to decontaminate portable dental delivery units and vacuum units upon closure. A reflective interior of the cases improves irradiation of the enclosed system, reducing the risk and spread of pathogens.