Cleaning your mouth well comes down to four things: brushing correctly, cleaning between your teeth, scraping your tongue, and using the right products. Most people brush daily but still miss a surprising amount of plaque because of technique gaps or skipped steps. Here’s how to do each part right.
Brushing Technique Matters More Than Duration
The method most dentists recommend is called the Modified Bass technique. Hold your toothbrush at a 45-degree angle so the bristles point toward your gum line, not straight at the tooth surface. Make short, gentle back-and-forth strokes on each tooth, then sweep the brush away from the gum toward the biting edge. This motion gets bristles slightly under the gum line where plaque builds up fastest, then flicks it away.
Work through your mouth in a consistent order so you don’t miss spots. Do the outer surfaces first, then inner surfaces, then the chewing surfaces of your back teeth. For the inside of your front teeth, tilt the brush vertically and use the toe of the brush head in short up-and-down strokes. Two minutes is the standard target, and most people underestimate how long that actually is. A timer or an electric toothbrush with a built-in one helps.
Use a toothpaste with 1,000 to 1,500 ppm fluoride, which is the concentration the WHO recommends for cavity prevention. Fluoride works by slowing the breakdown of enamel and speeding up its natural repair process. One often-overlooked detail: don’t rinse your mouth with water right after brushing. Spit out the excess toothpaste but skip the rinse so the fluoride stays in contact with your teeth longer.
Cleaning Between Your Teeth
Brushing alone can’t reach the tight spaces between teeth, and that’s where cavities and gum disease frequently start. You have a few options here, and they’re not all equal.
Interdental brushes, those tiny bottle-brush-shaped picks, remove significantly more plaque than traditional string floss. In one clinical trial, interdental brushes reduced plaque scores from 3.09 to 2.15 over six weeks, compared to floss reducing scores from 3.10 to only 2.47. The brushes also led to a greater reduction in gum pocket depth, a marker of gum health. If the spaces between your teeth are large enough to fit one comfortably, interdental brushes are the better choice.
String floss still works well for tight contacts where a brush won’t fit, which is common between the front teeth. Wrap about 18 inches around your fingers, slide it gently between teeth, and curve it into a C-shape against each tooth surface. Move it up and down rather than sawing back and forth, which can cut into your gums. Water flossers are another option and can be especially helpful if you have braces, bridges, or limited hand dexterity.
Don’t Skip Your Tongue
Your tongue’s rough surface traps bacteria and food debris that contribute directly to bad breath. Those bacteria produce volatile sulfur compounds, which are the main source of the smell. Simply brushing your tongue with your toothbrush helps, but a dedicated tongue scraper does a better job. In a comparative trial, a tongue scraper reduced sulfur compounds by 75%, while brushing the tongue with a toothbrush only achieved a 45% reduction.
To use a scraper, place it at the back of your tongue and pull it forward with gentle pressure. Rinse the scraper after each pass and repeat three to five times. Do this once a day, ideally during your morning routine.
When Mouthwash Actually Helps
Cosmetic mouthwashes mask odor temporarily but don’t change what’s happening in your mouth. Therapeutic mouthwashes contain active ingredients that reduce the bacteria responsible for plaque and gum inflammation. The most effective active ingredients include essential oils (the kind found in products like Listerine), cetylpyridinium chloride, and chlorhexidine. All three have been shown to reduce plaque and gingivitis when used alongside brushing and interdental cleaning.
Chlorhexidine tends to control plaque slightly better than essential oils, though both perform similarly for gingivitis. Chlorhexidine can stain teeth with long-term use, so it’s typically reserved for short-term situations like after a dental procedure. For everyday use, an essential oil or cetylpyridinium chloride rinse is a more practical option. Use mouthwash at a different time than brushing, such as after lunch, so it doesn’t wash away the fluoride from your toothpaste.
Keeping Your Tools in Good Shape
A worn toothbrush removes less plaque. Replace yours every three to four months, or sooner if the bristles look splayed or matted. If you’ve been sick, swap it out once you recover. Between uses, rinse the brush thoroughly, store it upright, and let it air dry. Covering the head or storing it in a closed container creates a moist environment where bacteria multiply faster.
Adjustments for Braces and Dry Mouth
If you wear braces or a permanent retainer, standard floss can’t slide between teeth normally. A floss threader or superfloss (a stiff-tipped floss designed to weave under wires) lets you get the floss where it needs to go. Small interdental brushes are also useful for cleaning around brackets and under the archwire. These extra steps add time, but orthodontic hardware creates more surfaces for plaque to cling to, making thorough cleaning even more important.
Dry mouth is another situation that changes the equation. Saliva naturally rinses bacteria and neutralizes acids, so when saliva production drops, your risk of cavities rises quickly. Chewing sugarless gum, especially varieties containing xylitol, stimulates saliva flow and offers some cavity protection. Citrus, cinnamon, and mint flavors tend to be the most effective at triggering saliva production. Avoid tobacco and alcohol, both of which dry the mouth further. If you deal with persistent dry mouth, more frequent dental checkups help catch problems early.
Putting It All Together
A solid daily routine looks like this: brush twice a day for two minutes using a fluoride toothpaste and the 45-degree-angle technique. Clean between your teeth once a day with interdental brushes or floss. Scrape your tongue each morning. Use a therapeutic mouthwash at a separate time from brushing if you want an extra layer of protection. The whole process takes about five minutes, and the order matters less than consistency. The single biggest factor in long-term oral health isn’t which product you buy. It’s whether you actually do each step, every day.