You’ve been brushing your teeth since you were old enough to hold a toothbrush. Which is exactly why nobody ever questions whether they’re doing it right. Actually, as a dentist in Harrow, UK, I can say with authority that most people make small brushing errors, often for decades, undermining the whole purpose of brushing. Here are the five most common ones to be aware of.
1. Brushing Too Hard
This is one of the most widespread myths in dental care. Brushing vigorously might feel as if you are cleaning your teeth really well, but it can actually wear down tooth enamel over time and cause gum recession. Neither of these conditions is reversible. Enamel doesn’t grow back, and receding gums can lead to sensitivity and an increased risk of decay near the root.
The correct technique is gentle, circular motions with a soft-bristled brush. If the bristles on your toothbrush are splaying outwards after just a few weeks, that’s a clear sign you’re applying too much force. Think of it less like scrubbing a pan and more like massaging your gums.
2. Not Brushing for Long Enough
The recommended brushing time is two minutes, twice a day. Most people, however, manage somewhere between 45 and 70 seconds before calling it done. That simply isn’t enough time to properly cover all surfaces of every tooth.
A handy trick is to divide your mouth into four quadrants: upper left, upper right, lower left, lower right. Spend 30 seconds on each.
Many electric toothbrushes have built-in timers precisely because this is such a common problem. If you’re brushing manually, set a timer on your phone until the habit is firmly established.
3. Rinsing With Water Straight After
This one surprises a lot of people. After brushing, most of us instinctively rinse our mouths out with water, but this actually washes away the fluoride that your toothpaste has just deposited on your enamel. Fluoride needs time to get to work, strengthening enamel and protecting your teeth.
The NHS recommends that after brushing, you spit out the excess toothpaste but do not rinse. It feels a little odd at first, but your teeth will genuinely benefit from it. If you use a mouthwash, use it at a different time of day, such as after lunch, rather than immediately after brushing.
4. Ignoring the Gumline and Back Teeth
Most people concentrate on the visible surfaces of their front teeth, which are easy to reach and feel satisfying to clean. The trouble is that plaque and bacteria tend to accumulate most heavily along the gumline and around the back molars, which are the areas that are hardest to reach and easiest to skip.
Tilt your brush at a 45-degree angle towards the gum line to clean that critical junction between tooth and gum. Make sure you’re reaching the very back surfaces of your rear molars, too. These are the teeth most commonly affected by cavities in adults, largely because they don’t receive adequate attention during brushing.
5. Holding onto Your Toothbrush Too Long
A worn-out toothbrush is far less effective at removing plaque than a fresh one. Dentists recommend replacing your toothbrush or the head of your electric toothbrush every 3 months. Most people hold onto theirs considerably longer than that.
It’s also worth replacing your toothbrush after you’ve been ill, as germs can linger in the bristles.
If you can’t remember the last time you changed your toothbrush, that’s probably your answer.
Good oral health doesn’t require complicated routines or expensive products. Proper dental care often simply comes down to correcting a few bad habits. Small adjustments to your brushing technique, in the right direction, can make a meaningful difference in your oral health for years to come.
Author Bio
Dr Malavi Sivakanesan is the co-founder and principal clinician at the Complete Smiles dental clinic in Bournemouth. She has a special interest in edentulism (adult tooth loss). Outside of managing the Complete Smiles clinics in the UK and Norway, Dr Sivakanesan is a dedicated advocate for affordable dental care.
