If a regular toothbrush isn't getting the job done, you should look into getting this Oral-B Pro 1000 Power Rechargeable Electric Toothbrush. According to the description, the toothbrush cleans 300% more plaque along the gum line than a regular toothbrush. It's selling for $39.97, but you can get it for just $29.97 with with free shipping when you clip the coupon code on the product page.