Always look for a brush whose head and bristles are small enough to reach into the crevices of your molars, where food debris can hide after you eat. According to the International Dental Health Association, most adults require a small- or medium-sized toothbrush for this purpose.
Many people brush regularly, but simply don't brush enough for their teeth to stay clean. The ADA recommends brushing for at least two minutes, twice daily. Having trouble gauging your routine for this duration? Try listening to short song, cue up a two-minute YouTube video or set a timer on your phone to give yourself the time you need to thoroughly clean your teeth.
Use Proper Brushing Technique
A quick wash of your bristles isn't enough to banish leftover food particles and polish your teeth. Instead, use a technique echoed by the American Dental Association (ADA): Start with your brush at a 45-degree angle to your gums and use short back and forth strokes across the sides and tops of your teeth. Then, hold the brush vertically and use several shorter strokes to focus on the backs of your teeth of the front anterior teeth where plaque builds up often.