Cleaning your teeth well comes down to technique, timing, and reaching the spots your brush can’t. Most people brush twice a day but still miss enough plaque to develop gum inflammation or cavities over time. Here’s how to get the most out of every step in your routine.
Brushing Technique That Actually Works
The method most dentists recommend is called the Modified Bass technique, and it’s simpler than it sounds. Hold your toothbrush at an angle so the bristles point toward your gum line, not straight at your teeth. Make short back-and-forth strokes, then sweep the brush away from the gum toward the biting edge of each tooth. This motion gets bristles slightly under the gum line where plaque builds up first.
Work in small sections, covering two or three teeth at a time. Hit the outer surfaces, inner surfaces, and chewing surfaces of every tooth. Most people rush through the inner surfaces of their lower front teeth and the outer surfaces of their upper back molars, so give those areas extra attention. Two full minutes is the standard target, and most people fall short unless they time themselves.
Manual vs. Electric Toothbrushes
A manual toothbrush works fine if your technique is solid, but electric brushes do offer a measurable advantage. A large Cochrane review found that electric toothbrushes removed about 21% more plaque and reduced gum inflammation by 11% compared to manual brushes over three or more months of use. Oscillating-rotating heads (the kind that spin back and forth in a small circle) performed best, cutting bleeding sites roughly in half compared to manual brushing in some trials.
The main reason is consistency. An electric brush delivers thousands of strokes per minute regardless of your energy level or attention span. If you already brush carefully with good technique, the gap narrows. But for most people, switching to electric is the single easiest upgrade they can make.
When to Brush Around Meals
If you eat or drink anything acidic (fruit, juice, soda, sour candy), wait at least 30 minutes before brushing. Acids soften your enamel temporarily, and brushing while it’s still weakened can wear it down. Rinsing with plain water right after eating helps neutralize those acids faster. For breakfast specifically, brushing before you eat or 30 minutes afterward are both reasonable approaches.
Cleaning Between Your Teeth
Your toothbrush can’t reach the tight spaces between teeth where cavities and gum disease often start. Floss, interdental brushes, and water flossers all reduce plaque in those gaps beyond what brushing alone achieves. A 2019 Cochrane review found that interdental brushes may be slightly more effective than floss, but the best tool depends on your mouth. If your teeth sit close together with little space between them, floss fits better. If you have wider gaps or gum recession, small interdental brushes clean more surface area.
The key is doing it once a day, every day, before or after brushing. Slide floss gently against each side of the tooth in a C-shape rather than snapping it straight down into the gum. For interdental brushes, pick the size that fits snugly without forcing. If you’ve never been consistent with flossing, a water flosser can lower the barrier enough to build the habit.
Choosing the Right Toothpaste
Any fluoride toothpaste handles the basics. Where toothpastes differ most is in abrasiveness, which is measured on a scale called RDA (Relative Dentin Abrasivity). The FDA requires toothpastes to score below 200, but manufacturers aren’t required to print the number on the tube.
As a general guide:
- 0 to 70 (low): Best for sensitive teeth and daily use. Sensodyne ProNamel scores around 37, Colgate Total around 70.
- 71 to 100 (medium): Safe for everyday use with normal enamel. Crest Regular falls around 95.
- 101 to 150 (high): Can cause enamel wear over time. Many whitening toothpastes land here.
- Above 150: Considered harmful for long-term daily use. Some tartar control and aggressive whitening pastes score in this range.
If you have sensitive teeth, enamel erosion, or receding gums, stick to the low end. Whitening toothpastes often achieve their results partly through higher abrasiveness, so using one every day for months can do more harm than good.
Don’t Forget Your Tongue
Bacteria coat the surface of your tongue, especially toward the back, and contribute to bad breath. You can brush your tongue gently with your toothbrush or use a dedicated scraper. That said, the evidence that tongue cleaning prevents chronic bad breath is weak. It can make your mouth feel fresher in the short term, but persistent halitosis usually has deeper causes like gum disease, dry mouth, or digestive issues.
Replacing Your Toothbrush
Swap your toothbrush or electric brush head every three to four months. Frayed bristles lose their ability to remove plaque effectively, and older brushes accumulate more bacteria over time. Replace it sooner if the bristles look splayed, if you’ve been sick, or if the brush has been contaminated (dropped on the floor, left in a sealed travel case for too long, or chewed by a pet). Between replacements, rinse your brush thoroughly after each use and store it upright so it air-dries.
What Home Cleaning Can’t Remove
Even with perfect technique, plaque hardens into tartar (calcite deposits that bond chemically to tooth surfaces) within days in certain spots. Once that happens, no amount of brushing or flossing will remove it. Tartar tends to build up behind the lower front teeth, along the gum line of upper molars, and below the gums where you can’t see or reach it. Left in place, it causes gum inflammation that can progress to periodontal disease.
Professional cleanings use ultrasonic scalers or fine metal instruments to break tartar off the tooth surface, including below the gum line. This is the main reason routine dental visits matter even if your home care is excellent. How often you need them depends on how quickly you accumulate tartar and whether you have active gum disease, but once or twice a year covers most people.