Introduction
Brushing your teeth seems simple — but most people don’t do it correctly.
According to the Australian Dental Association (ADA), inadequate brushing is one of the leading causes of tooth decay and gum disease in Australia. Similarly, the American Dental Association states that improper brushing technique can leave behind plaque biofilm even when brushing twice daily.
At My Local Dentists, we frequently see patients who brush daily but still develop cavities and bleeding gums — simply because their technique needs some improvement and refining.
This guide will walk you through:
- Correct brushing technique
- How long to brush
- Electric vs manual toothbrushes
- Best toothpaste options
- Common brushing mistakes
- Scientific evidence behind recommendations
Why Proper Brushing Matters
Plaque is a sticky bacterial biofilm that constantly forms on your teeth. If not removed:
- It produces acid → leading to cavities
- It inflames gums → gingivitis
- It can progress to periodontitis → bone loss and tooth mobility
Systematic reviews show that consistent mechanical plaque removal is the most effective way to prevent gingivitis and reduce caries risk. This means that simply rinsing with mouthrinse or water or waterflossers is not effective. You need to physically brush and scrub the plaque off. Much like you can’t just clean your dishes in the sink with the tap water without actually scrubbing it with a sponge or scourer.
Fluoride toothpaste enhances remineralisation and reduces decay risk by up to 24–26% in permanent teeth (Cochrane Reviews).
How Often Should You Brush?
The Australian Dental Association recommends:
-
Brush twice daily
-
Especially before bedtime
-
Using fluoride toothpaste
Night-time brushing is the most important because saliva flow reduces during sleep, increasing acid risk.
Step-by-Step: The Correct Brushing Technique
Step 1: Use the Correct Toothbrush
- Soft bristles
- Small to medium head
- Comfortable grip
Medium and Hard bristle toothbrushes can cause gum recession and enamel wear.
Step 2: Angle at 45 Degrees to the Gumline
Place bristles at a 45-degree angle toward the gum margin.
This allows bristles to clean:
- Tooth surface
- Gumline
- Slightly under the gum edge
Step 3: Use Gentle Circular Motions
Do NOT scrub aggressively. Be gentle on the gums
Use small circular motions:
- 10–15 strokes per section
- Move systematically around the mouth
Step 4: Brush for 2 Full Minutes
Divide mouth into 4 quadrants:
- 30 seconds per quadrant
Electric toothbrushes often have built-in timers.
Step 5: Don’t Forget These Areas
Many people miss:
- Inner lower front teeth – common area for plaque and tartar build up
- Back molars – you may need to close your mouth slightly to allow the toothbrush to extend further back
- Tongue surface – this can contribute to bad breath if not cleaned regularly
Electric vs Manual Toothbrush: Which Is Better?
Systematic reviews suggest powered toothbrushes:
- Reduce plaque more effectively
- Reduce gingivitis more than manual brushes
- Improve compliance in children
Oscillating-rotating brushes show slightly better results than manual brushing.
For patients with:
- Orthodontic braces
- Limited dexterity
- Gum disease history
We usually recommend electric brushes at My Local Dentists.
Common Brushing Mistakes
Brushing Too Hard
Can cause:
- Gum recession
- Tooth sensitivity
- Enamel erosion
If bristles flatten within weeks, you’re brushing too hard. Use an electric toothbrush with a pressure sensor if you’re not sure how hard you brush or forget to be gentle
Rinsing Immediately After Brushing
Spitting but NOT rinsing allows fluoride to remain on teeth longer.
The Australian Dental Association recommends “spit, don’t rinse”.
Using Non-Fluoride Toothpaste
Fluoride remains the gold standard for decay prevention, endorsed by:
- Australian Dental Association
- American Dental Association
- World Health Organization
What About Brushing Children’s Teeth?
Children should:
- Use low-fluoride toothpaste (under 6)
- Be supervised until at least age 8
- Use pea-sized amount
Toothbrushing habits formed early significantly impact lifetime oral health outcomes.
How Brushing Prevents Gum Disease
Gingivitis begins when plaque accumulates along gum margins.
Early signs:
- Bleeding when brushing
- Red, swollen gums
If untreated, it may progress to periodontitis — leading to bone loss.
Mechanical plaque removal twice daily reduces gingivitis significantly (systematic reviews, Cochrane).
When Brushing Alone Is Not Enough
Brushing cleans 60% of tooth surfaces.
You still need:
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Flossing
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Interdental brushes
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Regular professional cleans
Professional scaling removes hardened plaque (calculus), which brushing cannot remove.
FAQ Section
How long should I brush my teeth?
At least two minutes, twice daily.
Should I rinse after brushing?
Yes. Spit excess toothpaste and rinse with water. Only avoid rinsing if advised by your dentist.
Is an electric toothbrush better?
Yes, evidence suggests better plaque removal and gingivitis reduction. The most effective electric toothbrushes are the ones that oscillate and spin. Vibrating/sonic electric toothbrushes aren’t as effective at removing plaque
Can brushing too hard damage teeth?
Yes especially if it is a medium or hard tooth brush or you use excessive force— it can cause gum recession and enamel wear. If you find it hard to gauge your force when brushing your teeth, consider an electric toothbrush with a pressure sensor that flashes a light to warn you if there is too much pressure
What toothpaste should I use?
Fluoride toothpaste approved by dental associations like the Australian Dental Association or the American Dental Association.
References
- Australian Dental Association Oral Health Guidelines**
- American Dental Association Brushing Recommendations**
- Cochrane Reviews on fluoride toothpaste efficacy**
- WHO Oral Health Fact Sheets