Around half of Australian adults do not brush twice a day, and roughly one in three children miss the same mark, according to the Australian Institute of Health and Welfare. Brushing is the single most effective thing you can do at home for your teeth, yet most of the brushing problems I see in the chair come down to technique rather than effort. People brush hard, fast, and at the wrong angle, then wonder why they still get decay along the gum line.
The good news is that brushing well is a skill, not a talent. Once you fix the angle, the time, and the pressure, the rest tends to look after itself.
Key takeaways
- Brush twice a day for two full minutes with a fluoride toothpaste.
- Technique matters more than force. Light pressure at a 45 degree angle to the gum line cleans better than scrubbing hard.
- Spit, do not rinse, after brushing so the fluoride stays on your teeth.
- A soft brush head and a gentle hand protect your gums and enamel. Hard brushing causes recession and wear, not cleaner teeth.
- Brushing alone misses the surfaces between your teeth, which is why flossing or interdental brushing is not optional.
The one rule that fixes most brushing
If you take one thing from this article, make it this: aim the bristles at the gum line, not just the tooth. Plaque collects where the tooth meets the gum, and that is exactly the spot most people skim over. Tilt the brush to about 45 degrees so the bristles sit half on the tooth and half on the gum, then use small, gentle movements. This single change does more for your gum health than any expensive toothpaste.
How to brush, step by step
Step 1: Pick the right brush and paste
Use a soft-bristled brush, manual or electric, with a head small enough to reach your back teeth. Pair it with a fluoride toothpaste, which is the active ingredient that actually strengthens enamel. If you are unsure whether fluoride is right for your family, our explainer on whether fluoride is safe walks through the evidence.
Step 2: Use a pea-sized amount
More toothpaste does not clean better. A pea-sized smear is plenty for adults, and a smear the size of a grain of rice is right for young children.
Step 3: Angle the brush at the gum line
Place the bristles at 45 degrees to the gum and use short, gentle strokes or small circles. Let the bristle tips do the work. You are sweeping plaque away, not sanding the tooth.
Step 4: Cover every surface
Work methodically so you do not miss anything: outer surfaces, inner surfaces, then the chewing surfaces. Tip the brush vertically to reach behind the front teeth, where tartar loves to build up.
Step 5: Brush for two minutes
Two minutes is longer than it feels. Split your mouth into four sections and give each one thirty seconds, or use the timer on an electric brush or your phone. Most people quit at around forty-five seconds.
Step 6: Spit, do not rinse
This is the step almost everyone gets wrong. Spit out the excess foam but do not rinse with water or mouthwash straight after. Rinsing washes away the concentrated fluoride before it has had a chance to work.
How long and how often
Twice a day, morning and night, for two minutes each time. The night brush is the most important one, because saliva flow drops while you sleep and plaque acids have all night to work. If you only nail one brush a day, make it the one before bed.
Should you use an electric or manual brush?
Both work if your technique is good. The evidence does suggest powered brushes remove a little more plaque on average, largely because they take the guesswork out of the movement and many have built-in timers. We compare them in detail in our guide to electric versus manual toothbrushes. The best brush is the one you will actually use properly twice a day.
The most common brushing mistakes
Brushing too hard. Aggressive scrubbing wears away enamel and pushes gums back, which exposes the sensitive root surface. If your bristles splay out within a month, you are pressing too hard.
Brushing straight after acidic food or drink. After wine, citrus, or soft drink, enamel is temporarily softened. Brushing immediately can wear it down. Wait about an hour, or rinse with water first. Our piece on enamel erosion explains why.
Skipping the gum line and back teeth. These are the two spots where decay and gum disease start. Slow down at the very back and along the gums.
Keeping a worn brush. Replace your brush or brush head every three months, or sooner if the bristles look bent.
Relying on brushing alone. A brush cannot reach between teeth. If your gums bleed when you brush, that is usually inflammation from missed plaque, not a reason to stop. Our guide to bleeding gums covers what to do.
Do not forget between the teeth
Brushing cleans about three of the five surfaces of each tooth. The two surfaces that touch the neighbouring teeth need floss or an interdental brush. Our step-by-step guide on how to floss properly shows the technique, and if you are wondering whether a rinse adds anything, see do you need mouthwash.
When to see a dentist
Good brushing prevents most problems, but it cannot reverse tartar that has already hardened, and it will not fix bleeding that continues for more than two weeks of careful home care. Persistent bleeding, sensitivity, bad breath, or visible build-up are all signs to book a check-up and professional clean. A hygienist can also watch you brush and point out the spots you are missing, which is one of the most useful five minutes you can spend.
Frequently asked questions
Should I brush before or after breakfast?
Before breakfast is gentler on your enamel, because eating, especially acidic food, softens the surface temporarily. If you prefer to brush after, wait about an hour or rinse with water first.
Is it bad if my gums bleed when I brush?
Bleeding usually means the gums are inflamed from plaque, not that you should brush less. Keep brushing gently and cleaning between your teeth. If it has not settled after two weeks, see a dentist.
How much toothpaste should children use?
A smear the size of a grain of rice for children under three, and a pea-sized amount from three years up. Supervise brushing until about age seven or eight.
Does the order of brushing and flossing matter?
Flossing first can help fluoride reach between the teeth, but the most important thing is that you do both. Pick the order you will stick to.
How often should I replace my toothbrush?
Every three months, or sooner if the bristles are frayed. A worn brush cleans poorly. Replace it after illness too.
Brushing well is the foundation, and a regular check-up keeps everything on track. If it has been a while, our team at Lumi Dental in Melrose Park is happy to help. You can book a check-up and clean or see current offers and pricing, and we will give you a written quote before any treatment.
