ULTRASONIC TOOTHBRUSH

 ULTRASONIC TOOTHBRUSH

Many of you may have heard this name "Ultrasonic Brush" or may not.
This is the brush of latest technology which is used to reduce our strain ever for brushing.
It is a kind of electrical toothbrush because it works on current.
When it is switched ON it produces ultrasonic waves so that its bristles vibrate at ultrasonic frequency.
That vibration creates small bubbles, which ignites normal brushing action.
The lathers created are used to clean our teeth in the nooks and crevices.
Usage of this brush is not like ordinary brushing in circular brushing motion.
Unlike that it should be drawn across the teeth in a slow, straight line, back and forth manner.
It uses normal AA or AAA sized battery.
Another kind of brush uses coiled wiresfor charging; when the handle of the brush is brought near the charger the energy transferred to the battery and recharges it.
The charge can lasts for one week.
These kinds of brushes are more expensive.
It is specially designed for the elders who are not even able to do ordinary simple work.