Researchers developed world’s smallest toothbrus
Researchers of Rensselaer Polytechnic Institute have developed nano size toothbrush for //brushing your teeth. The toothbrush is made out of millions of cardbon nono tubes that are 30 times stronger than stel and five times less dense. The tooth brush bristles are usually made of animal hairs, polymer fibres and metal wires. Thesehave problems of corroding, wekening and melting. But th...Baby's First Toothbrush Should Be a Cotton Swab
New parents should waste no time starting their child's dental care, says German magazine "Baby and Familie". It advises cotton swabs to clean a baby's first teeth. //Once a child has four or five teeth, switch to a baby toothbrush. Parents can start teaching their children about toothbrush use at age three. Most children of that age only manage to clean the surface of the teeth, mean...