You want the most effective oral hygiene. Thus you need to be able to reach even the least accessible places such as the spaces between your back teeth. The special toothbrush handles were designed exactly for this purpose. They're longer and curved in a different way than a regular toothbrushes tend to be. Notino also offers universal re-usable toothbrush handles for different sizes of toothbrushes, as well as dental floss holders.