Feno smart toothbrush cleans teeth all at once — does it work?
You are blissful to the idea, but our ancestors “brush” their teeth using frayed twigs. Since then, toothbrushes have evolved much, from cow bone handles and pig bristles to hard plastic handles and nylon bristles to electric toothbrushes that we use today. Now we are seeing the rise of the electric toothbrush in the mouth. […]