Substitute Heads each 3 months. The same as with a normal toothbrush, you will have to interchange the bristle part of an electric toothbrush each and every few months. The bristles will dress in down and they will no longer be as powerful. Neither of both of these cleansing styles https://lanehnoqr.wikimillions.com/2579646/top_best_toothbrushes_for_braces_secrets