The best thing to brush your teeth with is a soft-bristled toothbrush and a fluoride toothpaste containing at least 1,000 parts per million (ppm) of fluoride. That combination, used twice a day for two minutes each session, is the foundation of cavity prevention and gum health. But the details matter: the type of brush you choose, the toothpaste you pair it with, and even how you angle the bristles all affect how well you’re actually cleaning.
Electric vs. Manual Toothbrushes
Both work, but electric toothbrushes have a measurable edge. 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 months of use. In the short term, the gap is smaller (roughly 11% more plaque removal), but it widens the longer you use one.
The advantage comes down to consistency. Electric brushes do most of the motion for you, which means your technique matters less. Many models also include built-in two-minute timers that keep you brushing long enough. If you brush thoroughly with a manual toothbrush and use good technique, you can absolutely keep your teeth healthy. But if you tend to rush, press too hard, or skip hard-to-reach spots, an electric brush compensates for those habits.
Why Soft Bristles Are the Only Safe Choice
It’s a common misconception that firmer bristles clean better. They don’t, and they cause real damage over time. Medium and hard bristles wear down enamel, the protective outer layer of your teeth that doesn’t grow back. Medium bristles are also more likely to cause gum thinning, where the gum tissue pulls away from the tooth and exposes the sensitive root underneath.
Soft bristles remove plaque just as effectively without the risk. The American Dental Association specifically recommends soft bristles for this reason. If you feel like soft bristles aren’t doing enough, the issue is almost certainly your technique or how long you’re brushing, not the firmness of the brush.
What to Look for in Toothpaste
Fluoride is the single most important ingredient. It strengthens enamel by helping your teeth reabsorb minerals lost to acid from food and bacteria. The FDI World Dental Federation recommends toothpaste with a minimum of 1,000 to 1,100 ppm fluoride for everyday use. Most major brands fall in this range. If you’re at high risk for cavities, prescription toothpastes with concentrations up to 5,000 ppm are available.
Beyond fluoride content, pay attention to abrasiveness. Toothpastes are rated on a scale called Relative Dentin Abrasivity (RDA). Anything from 0 to 70 is considered low abrasive, 71 to 100 is medium, and above 100 is highly abrasive. Toothpastes above 150 are considered potentially harmful. Whitening toothpastes tend to sit higher on this scale because they rely on gritty particles to scrub surface stains. If you use one daily, you may be wearing down enamel faster than you realize. For everyday brushing, a low-to-medium abrasive toothpaste is the safest bet.
Hydroxyapatite Toothpaste
Hydroxyapatite is the main mineral that makes up tooth enamel, and toothpastes containing a synthetic version of it have gained popularity as a fluoride-free alternative. Research from the University of Toronto found that hydroxyapatite toothpastes can provide equivalent cavity protection to fluoride toothpaste. This makes them a reasonable option for young children, where swallowing too much fluoride during tooth development can cause cosmetic spots on adult teeth (a condition called fluorosis). For adults who prefer to avoid fluoride, hydroxyapatite is the most evidence-backed alternative available.
Charcoal Toothpaste
Charcoal toothpaste is one to skip. Despite its popularity on social media, it’s too abrasive for daily use and risks scratching enamel. Most charcoal toothpastes also lack fluoride entirely, meaning you get the abrasion without the cavity protection. Harvard Health Publishing has flagged it as a risk to enamel with no proven whitening benefit beyond what a standard toothpaste provides.
Technique Matters More Than You Think
The most widely recommended brushing method is the modified Bass technique. Hold your toothbrush at an angle so the bristles point toward your gum line, not straight at the tooth surface. Make short back-and-forth strokes along the gum line, then sweep the brush away from the gum toward the biting edge of each tooth. This motion gets bristles slightly under the gum margin where plaque builds up first, then sweeps debris away.
Most people brush in large scrubbing motions across the front of their teeth and neglect the inner surfaces and the gum line. Spending your full two minutes working methodically through each section of your mouth, including the insides of your front teeth and the chewing surfaces of your molars, does more for your oral health than upgrading to an expensive toothbrush or toothpaste.
Replacing Your Toothbrush
Swap your toothbrush or brush head every three to four months. Frayed, splayed bristles don’t clean effectively because they can’t maintain the right angle against your teeth and gums. Some brushes have indicator bristles that fade in color over time, but the Cleveland Clinic notes that the color change doesn’t always line up with the actual replacement schedule, so it’s better to track the calendar.
Replace sooner if you’ve been sick, since bacteria and viruses can linger on bristles. The same goes if the brush has been dropped somewhere unsanitary, left in a closed travel case for a long stretch, or chewed on by a pet.
Don’t Forget Your Tongue
Your tongue harbors a thick layer of bacteria that contributes to bad breath and can reintroduce bacteria to freshly brushed teeth. You can brush your tongue with your toothbrush after you finish your teeth, but a dedicated tongue scraper removes more plaque and bacteria in fewer passes. It’s a small addition to your routine that makes a noticeable difference in how fresh your mouth feels, especially if bad breath is something you deal with.