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One involves a rigid toothpaste pump made of a hard plastic and functions by pressing a knob on top rather than squeezing the tube. [6] Henkel were the first to sell their toothpaste in a pump in West Germany, and it was marketed in the United States beginning in 1984.
When it released TopView in 1985, the press speculated that the software was the start of IBM's plan to increase its control over the IBM PC (even though IBM published the specifications publicly) by creating a proprietary operating system for it, similar to what IBM had offered for years on its larger computers. [5] TopView also allowed IBM to ...
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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.
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.
The toothbrush has the features we’d expect of a high-powered electric toothbrush, including a two-minute timer and multiple brush speeds — the real luxury is in the flossing capabilities ...
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.
The percentage reduction in inflammation from baseline at 6 months was 31.9% for Sonicare and 18.1% for Oral B. In regards to probing depth, Sonicare showed a mean reduction of 0.84 mm from baseline at 6 months, while Oral B showed an average reduction of 0.39 mm. [6]