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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.
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 ...
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 ...
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] Individual studies have shown that Sonicare toothbrushes are more effective at removing plaque and reducing gingivitis than manual toothbrushes. [7] [8]
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.
Robert Hutson also created the Oral-B brand name. The first product was known as the "Oral-B 60", [10] because it had 60 tufts. [11] Other sizes were made with differing numbers of tufts and corresponding names. [6] Hutson sold his toothbrush business in the 1960s, and continued his San Jose periodontal practice. [6] [12] [13] [14] [15]
The concept of program information files was also used under Digital Research operating systems such as Concurrent DOS, Multiuser DOS, System Manager and REAL/32. Using the PIFED command, the necessary program information got directly embedded into the .EXE or .COM executable file. [1]