I want to know how often you replace your toothbrush. I noticed my new Oral B has only lasted around 6 months, when I rinse my mouth out with water afterward I notice fine plastic stuff, which must be the bristles. This has been going on for a few weeks now. I can't see anything missing on the toothbrush but something isn't right. This morning I opened a new Oral B and my mouth was clean when I rinsed, with no funny bits.
