How to Brush and Floss Properly (Most People Don't)

In short: Two minutes twice a day with a soft brush at 45 degrees to the gumline, gentle pressure, small strokes — then spit, don't rinse, so the fluoride keeps working. Add daily cleaning between teeth: a brush reaches only about three-fifths of each tooth, and decay starts in the rest.

Almost everyone brushes. Rather fewer brush effectively, and the difference shows up years later as decay between teeth and receding gums.

Brushing

• Two minutes, twice a day. Most people manage under 45 seconds. Time it once — it is longer than it feels.
• Soft bristles. Medium and hard brushes damage gums and wear enamel at the gumline. Soft removes plaque perfectly well.
• Angle at 45 degrees to the gumline, not flat against the tooth. Plaque that matters sits where tooth meets gum.
• Small circles or short strokes, not long horizontal scrubbing. Scrubbing carves notches into the tooth at the gumline.
• Gentle pressure. If bristles splay outward, you are pressing too hard. An electric brush with a pressure sensor is useful here.
• Cover every surface — outer, inner, chewing. The inner surfaces of the lower front teeth and the outer surfaces of the upper back teeth are the two most commonly missed areas.
• Clean your tongue. Gently, once a day.

Spit, don't rinse

After brushing, spit out the excess and do not rinse with water. Rinsing washes away the concentrated fluoride that would otherwise keep working on the enamel. This is a small change that costs nothing.

Cleaning between teeth

A toothbrush cannot reach the surfaces where teeth touch — roughly two-fifths of each tooth. This is exactly where decay and gum disease most commonly start.

Floss: use a decent length, guide it gently between teeth, then curve it into a C shape against one tooth and slide it under the gumline before repeating against the neighbour. Snapping it straight down cuts the gum.

Interdental brushes: for many adults these are easier and more effective than floss, especially where gaps are larger. Your dentist can tell you which size fits.

Water flossers: useful, particularly around braces and bridges, though generally as an addition rather than a replacement.

The best one is whichever you will actually do daily.

Common mistakes

• Brushing immediately after acidic food or vomiting — wait 30 minutes, or you scrub softened enamel away
• Keeping a brush past three months, or once bristles splay
• Flossing only when food is stuck, rather than daily
• Stopping flossing because gums bleed — bleeding is the reason to continue, gently; it usually settles within two weeks

Getting your technique checked

Ask your dentist or hygienist to watch you brush. It takes two minutes and is the most useful feedback you will get. Every dentist on EnamDoc is verified against their dental council registration before they can accept a booking.