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A toothbrush sanitizer is a device used to disinfect the tooth brush by applying short-wavelength ultraviolet (UV-C) light to kill or inactivate microorganisms. Studies in dental journals demonstrate that UV sanitizers effectively kill bacteria and microorganisms, but other forms of sanitizing, using common household products, were found to be equally or more successful at eliminating ...
Ultrasonic toothbrush (Megasonex) An ultrasonic toothbrush is an electric toothbrush designed for daily home use that operates by generating ultrasound in order to aid in removing plaque and rendering plaque bacteria harmless. It typically operates on a frequency of 1.6 MHz, which translates to 96,000,000 pulses or 192,000,000 movements per minute.
Three plastic toothbrushes. A toothbrush is a special type of brush used to clean the teeth, gums, and tongue.It consists of a head of tightly clustered bristles, atop of which toothpaste can be applied, mounted on a handle which facilitates the cleaning of hard-to-reach areas of the mouth.
An electric toothbrush, motorized toothbrush, or battery-powered toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation-oscillation (where the brush head alternates clockwise and counterclockwise rotation), in order to clean teeth.
Ultrasonic cleaning is a process that uses ultrasound (usually from 20 to 40 kHz) to agitate a fluid, with a cleaning effect. Ultrasonic cleaners come in a variety of sizes, from small desktop units with an internal volume of less than 0.5 litres (0.13 US gal), to large industrial units with volumes approaching 1,000 litres (260 US gal).
A second review found no clinical evidence for the dynamic fluid activity of the Sonicare toothbrush being more effective in plaque removal than an Oral-B oscillating/rotating electric toothbrush. [4] A 2007 study comparing the two found the rotation/oscillation brush to be more effective in single-use plaque reduction. [5]
Ultrasonic motors also offer arbitrarily large rotation or sliding distances, while piezoelectric actuators are limited by the static strain that may be induced in the piezoelectric element. One common application of ultrasonic motors is in camera lenses where they are used to move lens elements as part of the auto-focus system.
Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse waves with centre frequencies ranging from 0.1-15 MHz and occasionally up to 50 MHz, are transmitted into materials to detect ...