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Dental knowledge: brushing milk teeth

A brushing technique for milk teeth following the KAI method.

A child giving a thumbs-up at the dentist

Learning to brush

From the very first milk tooth

Even the first milk tooth should be cleaned carefully with a soft brush or a cotton bud and a small amount of toothpaste. Milk teeth should be cleaned twice a day or more with a special children's toothbrush with soft, multi-tufted, rounded bristles and a children's toothpaste containing about 500 ppm fluoride. Your dental practice will tell you everything important about the particular properties of fluorides. Fluoride strengthens the redeposition of minerals in the enamel and helps prevent caries, increasing the teeth's resistance to attack by the metabolic products of the bacteria in plaque.
Incorrect brushing can damage teeth and gums, so using a systematic cleaning method matters. Among the techniques recommended is the KAI method, which children learn easily and which promises a good cleaning result.

KAI – the order of brushing

Three steps, always in the same order – that way no surface is forgotten.

K = chewing surfaces (Kauflächen)

The chewing surfaces are cleaned with horizontal back-and-forth movements of the brush.

A = outer surfaces (Außenflächen)

The outer surfaces of the teeth are cleaned with small circular movements of the brush.

I = inner surfaces (Innenflächen)

The inner surfaces are brushed from the gum towards the tooth with small circular movements. The brush is guided from the gum towards the tooth – from red to white.

The key points at a glance

  • Even the first milk tooth should be cleaned – with a soft brush or a cotton bud and a little toothpaste.
  • Twice a day is recommended, with a children's toothbrush and a toothpaste containing 1,000 ppm fluoride – a grain of rice up to the age of two, a pea thereafter.
  • KAI serves as a rule of thumb for the order: chewing surfaces first, then outer surfaces, then inner surfaces.

Answered briefly

Frequently asked questions

From the first milk tooth. To begin with a soft brush or a cotton bud with a small amount of toothpaste is enough.
Twice a day, with a children's toothbrush and a toothpaste containing 1,000 ppm fluoride. Up to the second birthday a rice-grain-sized amount is enough, after that a pea-sized amount.
KAI is the German mnemonic for the order of brushing: first the chewing surfaces, then the outer surfaces, then the inner surfaces. That way no surface is forgotten.