How to Clean Your Teeth: Brushing, Flossing & More

Cleaning your teeth well comes down to technique, timing, and a few habits most people skip. Brush twice a day for at least two minutes each session using fluoride toothpaste, clean between your teeth daily, and avoid rinsing with water right after brushing. That’s the foundation. The details below will help you get noticeably more out of each step.

Brushing Technique That Actually Works

The most widely recommended method is called the Modified Bass technique, and it’s simpler than it sounds. Hold your toothbrush at a 45-degree angle so the bristles point toward your gumline. Make short back-and-forth strokes, then sweep the brush away from the gum toward the biting edge of each tooth. This combination loosens plaque right where it accumulates most, at the junction between tooth and gum, then sweeps it away.

For the inside surfaces of your front teeth, tilt the brush vertically and use the toe of the brush head in gentle up-and-down strokes. For chewing surfaces, a standard back-and-forth motion works fine. Work systematically around your mouth so you don’t miss areas: outside surfaces first, then inside surfaces, then chewing surfaces.

One of the most common mistakes is pressing too hard. You only need enough pressure to feel the bristles against your gums. If the bristles are bending or splaying outward, you’re pushing too hard. Over time, excessive pressure wears down enamel and causes gum recession, which exposes the sensitive root area underneath. This can lead to chronic tooth sensitivity, grooves worn into the tooth surface, and even cavities on the roots. A soft-bristled brush with gentle pressure removes more plaque than a hard scrub because the bristles can flex into the spaces around each tooth.

Why You Shouldn’t Rinse After Brushing

This is the habit that surprises most people. After you brush, spit out the excess toothpaste but don’t rinse your mouth with water. Rinsing washes away the concentrated fluoride left on your teeth, diluting it and reducing its protective effect. Fluoride works by strengthening enamel and making it more resistant to acid attacks from bacteria. Standard toothpastes contain between 1,000 and 1,500 parts per million of fluoride, and leaving that thin layer on your teeth after brushing gives it more time to do its job.

If you use mouthwash, use it at a separate time from brushing, such as after lunch, rather than immediately after your morning or evening brush. That way you get the benefits of both without one canceling out the other.

Cleaning Between Your Teeth

Brushing alone misses the surfaces where your teeth touch each other, which is where cavities and gum disease frequently start. A 2019 Cochrane review found that adding floss or interdental brushes to your routine reduces both plaque and gum inflammation compared to brushing alone.

The right tool depends on the size of your gaps. If your teeth sit close together with tight contact points, dental floss is your best option. For wider gaps, especially if you have gum disease or have had gum recession, small interdental brushes are more effective than floss. Many people benefit from using both: floss for tight spots and interdental brushes where they fit without forcing.

How to Floss Properly

Wind about 18 inches of floss around your middle fingers, leaving a few inches of taut floss to work with. Guide it gently between two teeth. When the floss reaches the gumline, curve it into a C shape against one tooth and gently slide it into the space between the gum and the tooth. Hold it snugly against the tooth surface and rub up and down, following the curve of the tooth. Then curve the floss around the neighboring tooth and repeat before moving to the next gap. The key is hugging each tooth individually rather than just snapping the floss straight down and back up.

It doesn’t matter whether you floss before or after brushing. What matters is that you do it daily.

Cleaning Your Tongue

Your tongue’s rough surface traps bacteria and food debris that contribute to bad breath. A dedicated tongue scraper removes about 30 percent more odor-causing sulfur compounds than a toothbrush alone. One study found that scraping twice daily for a week reduced levels of two major cavity-causing bacteria in the mouth.

To use a scraper, place it at the back of your tongue and drag it forward with gentle pressure. Rinse the scraper after each pass and repeat two or three times. If you don’t have a scraper, brushing your tongue with your toothbrush still helps, just not quite as much.

Choosing the Right Mouthwash

Not all mouthwashes do the same thing. Cosmetic mouthwashes temporarily freshen breath and leave a pleasant taste, but they have no lasting chemical effect on plaque or gum health. Therapeutic mouthwashes contain active ingredients that actually reduce bacteria, plaque buildup, or tooth decay. The difference matters if you’re using mouthwash as part of your oral health routine rather than just for fresh breath before a meeting.

Fluoride mouthwashes add an extra layer of cavity protection. Antiseptic formulas help control gum inflammation. If you’re unsure which type to choose, look for a product with an ADA Seal of Acceptance, which means its claims have been independently verified.

Toothpaste for Children

Children should use fluoride toothpaste, but the amount matters. For kids under three, use a smear the size of a grain of rice. For children between three and six, a pea-sized amount is appropriate. These smaller quantities provide cavity protection while minimizing the risk of fluorosis, a cosmetic condition that can cause white spots on developing permanent teeth if too much fluoride is swallowed during early childhood.

When to Replace Your Toothbrush

Swap your toothbrush or brush head every three to four months. Frayed or splayed bristles don’t scoop plaque effectively, and worn bristles can actually be more abrasive on your gums. If your bristles look bent or flattened before the three-month mark, replace it sooner. That early wear is also a sign you may be brushing too hard.

After an illness, replacing your toothbrush is a good idea even if the bristles still look fine, since bacteria and viruses can linger on the brush head.

Putting It All Together

A complete daily routine looks like this:

  • Morning: Brush for two minutes with fluoride toothpaste using gentle, angled strokes. Spit but don’t rinse. Clean your tongue.
  • Midday (optional): Use a therapeutic mouthwash if you want added protection, keeping it separate from brushing.
  • Evening: Floss or use interdental brushes first, then brush for two minutes. Spit but don’t rinse. Clean your tongue.

The whole process takes about five minutes twice a day. Most of the benefit comes from consistency and technique rather than expensive products. A soft-bristled toothbrush, standard fluoride toothpaste, and floss or interdental brushes cover the essentials.