Home Â» Discover and Learn Â» Noah Webster History Â» Noah Webster's Story. The Noah Webster House in West Hartford is the birthplace of one of the most unappreciated men in American history. Our great military heroes and statesmen we remember.
Toothbrush Care: Cleaning, Storing and Replacement. Toothbrushing plays an important everyday role for personal oral hygiene and effective plaque removal. Appropriate toothbrush care and maintenance are also important considerations for sound oral hygiene. The ADA recommends that consumers replace toothbrushes approximately every 3â4 months or sooner if the bristles become frayed with use.
An electric toothbrush is a toothbrush that makes rapid, automatic bristle motions, either back-and-forth oscillation or rotation-oscillation (where the brush heads alternates clockwise and counterclockwise rotation), in order to clean teeth.Motions at sonic speeds or below are made by a motor.odern electric toothbrushes run on low voltage, 12v or less. A few units use a step-down transformer to power the brush, but most use a battery, usually but not always rechargeable and non-replaceable, fitted inside the handle, which is hermetically sealed to prevent water damage.