Your toothbrush is perhaps your most important weapon in the battle against tooth decay and gum disease — so you need to keep it in good condition. Yet even if you take perfect care of your toothbrush, it won’t last forever. And the longer you use it, the less effective it gets, so replacing it regularly is essential to maintaining your oral health.
The question is how often. It depends somewhat on the type of brush you have and how well you maintain it, but there are some general guidelines everyone should follow. Here’s everything you need to know about replacing your toothbrush.