When to Change Your Toothbrush or Brush Head

How Often Should You Change Your Toothbrush or Electric Toothbrush Head?  

Many dental professionals recommend changing your toothbrush about every three months, and the American Dental Association (ADA) recommends that you replace your toothbrush approximately every three to four months, or sooner if the bristles are frayed.  That's because, no matter what type of toothbrush you use, its bristles can become frayed and worn and may lose their effectiveness. And clinical research shows that a new toothbrush can remove more plaque than one that's worn out, ensuring that your brush is working its hardest to help keep your teeth clean and healthy.

Change Your Toothbrush Head When You Are Sick or Not Feeling Well 
Toothbrush bristles do not kill bacteria in the mouth, protect you against disease or prevent you from getting sick. So be sure to change your brush regularly for maximum effectiveness and to practice diligent hygiene, despite the type of toothbrush you're using.