Most people believe brushing their teeth is simple and automatic. Dental experts say that confidence is misplaced. According to leading researchers and clinicians, overall dental health is declining, not because people skip brushing, but because many are brushing incorrectly and relying on habits learned as children rather than evidence based techniques.
As debates over removing fluoride from public drinking water continue in parts of the United States, experts say proper brushing technique has never been more important.
Who are the Experts?
Some of the strongest guidance comes from Dagmar Else Slot and Fridus van der Weijden, a Dutch research team that has published more than 100 scientific papers on oral health. Both are affiliated with the Academic Centre for Dentistry in Amsterdam, where Slot is a professor of preventive oral health and van der Weijden is a professor emeritus of periodontology.
For this article, they are joined by U.S. experts including Lancette VanGuilder, Mia Geisinger, Mirissa Price, Houston Symmes, and academic clinicians from the University of Michigan, University of Pennsylvania, and Ohio State University.
Their shared message is blunt. Almost everyone has room for improvement.
Why Brushing Technique Is So Often Poor
Slot describes the problem as supervised neglect. People brush every day, but few are ever taught how to do it properly. Van der Weijden says many patients assume they are doing a good job because their teeth feel smooth afterward, even when plaque remains.
Experts point to sobering data. Roughly 40 percent of U.S. adults over 30 have gum disease, and about 90 percent of adults ages 20 to 64 have experienced tooth decay. Dental pain sends millions of people to emergency rooms each year and untreated oral disease costs the U.S. economy tens of billions of dollars in lost productivity.
The Best Way to Brush Your Teeth
Use an electric toothbrush for two full minutes
Experts agree that electric toothbrushes outperform manual brushes for most people. The reason is consistency. Built in timers help ensure the full two minutes needed to clean every tooth surface. Soft bristles are recommended, and brush head size should match the size of your mouth.
Brush methodically, not randomly
Dentists recommend dividing the mouth into four sections and spending about 30 seconds on each. Every tooth has multiple surfaces. The cheek side, tongue side, front, and back all need attention. Starting at the gumline helps remove plaque where it causes the most damage.
Hold the brush at a 45 degree angle
Multiple experts advise angling the bristles toward the gumline rather than brushing straight on. This angle cleans the junction where plaque and bacteria tend to collect while being gentler on gums.
Be gentle
Brushing harder does not clean better. Aggressive scrubbing can damage enamel and cause gum recession. Soft bristles and light pressure are key. Many electric brushes include pressure sensors to warn users when they are brushing too hard.
How Much Toothpaste to Use
A pea sized amount of toothpaste is enough. Using more can be misleading. VanGuilder explains that heavy foam can hide bleeding gums, which are an important warning sign. Van der Weijden adds that detergents in toothpaste can make teeth feel clean before plaque is actually removed.
All experts recommend toothpaste that contains fluoride and carries the American Dental Association seal.
Let Fluoride Do Its Job
Several experts advise against rinsing immediately after brushing. Dr. Price explains that leaving fluoride on the teeth for at least 15 minutes strengthens enamel and helps protect against cavities. Rinsing right away reduces that benefit.
When Not to Brush
Dr. Symmes warns against brushing immediately after consuming acidic foods or drinks such as citrus or soda. Acids soften enamel, and brushing too soon can cause damage. Waiting about 30 minutes allows saliva to neutralize acids and enamel to reharden.
Interdental brushes may work better than floss
Slot notes that flossing is difficult for many people to do correctly. Research shows that small interdental brushes are often more effective at reducing gum inflammation. These tools are meant to supplement brushing, not replace it.
If you floss, timing matters less than consistency
Geisinger recommends cleaning between teeth before brushing to remove debris so the brush can work more effectively. Experts agree that waxed or unwaxed floss is fine. The best choice is the one you will actually use.
Mouthwash Is Not a Substitute
Mouthwash can be helpful, but experts caution against using it instead of floss or interdental brushes. Alcohol based mouthwashes may worsen dry mouth and increase cavity risk for some people.
Common Mistakes Experts Warn Against
Dentists consistently recommend against brushing too hard, using too much toothpaste, skipping between tooth cleaning, brushing randomly, relying on mouthwash alone, and following fluoride free trends promoted on social media. Slot criticizes influencers who promote oil pulling or fluoride avoidance without scientific evidence.
Patients often report surprise when they learn how much their technique can improve. Experts say many people feel guilty when they realize they have been brushing incorrectly for years. Dentists emphasize that improvement does not have to be perfect to be meaningful.
Messina stresses that some brushing is better than none. Cullen adds that small daily habits, when done correctly, can have a major impact on overall health, including reduced risks linked to heart disease and diabetes.
Brushing your teeth is not just about fresh breath or white smiles. It is a critical part of protecting your gums, preventing disease, and supporting long term health. Experts agree that with the right technique, gentle pressure, fluoride toothpaste, and enough time, nearly everyone can brush better than they do now.
