This is a test of commonsense. Complete the next sentence:

How to strengthen teeth and gums
Choose the right toothbrush.
Selecting a toothbrush from a store can be overwhelming; the variety of special features, let alone colors, is enough to leave you scratching your head in the dental care aisle. Picking a brush that is right for you is more important than buying the most expensive brush with the most features.
Things to look for in a toothbrush include : An appropriate size. Larger toothbrushes can be more difficult to maneuver in your mouth.