When should I change the Toothbrush? My Answer -  "If you find that your toothbrush has. -Frayed bristles. -Broken bristles. -The base of the bristles has Visible deposits. It's time to change the brush. You know it's not the same as was  Current day bristles of toothbrushes. Are not made of natural materials. Most are made of plastic.  They have a limited life. When broken the bristles don't really work. The fraying of bristles means they won't even brush your teeth. Even if you use loads of toothpaste.  The base of the BRISTLES  brush needs to be cleaned after use. With prolonged use, it tends to accumulate deposits. That basically contains old food and deposits . This encourages bacteria to grow right in your toothbrush. So change your toothbrush when you see these signs. Or you can be proactive and change every 6-12 months." To Learn More Visit Our Website. Dr . Divya Puranik.