Edit: Since it’s come up a couple times in the comment, I’ll add that there’s evidence use of a water flosser is more effective than dental floss.
Edit: Since it’s come up a couple times in the comment, I’ll add that there’s evidence use of a water flosser is more effective than dental floss.
Did the head look like it had a bad hair day by the time you were replacing it?
With sonic and oscillating toothbrushes, you have to use gentle pressure almost letting it float over the teeth in order to allow the motion to transfer the tips of the bristles. If you press too hard, you will only be wiping around the toothpaste with the (rounded) sides of the bristles. Ideally the brush head should look practically new (aside from the indicator bristles turning white) by the time you would replace it.