Oral care starts before the first tooth appears. Good habits in childhood lay the foundation for long-term dental health, and the adult's role stays important for many years because small children cannot clean their teeth properly on their own.
The basics are simple: brush twice a day with fluoride toothpaste, keep sugary snacks to mealtimes and attend regular dental check-ups. Adult help is usually needed until about age eight, especially for the back teeth.
Caring for an infant's mouth#
Before teeth appear, the gums can be wiped with a clean damp cloth. Once the first tooth comes through, brushing starts with a small soft toothbrush. The first baby teeth usually appear around six months of age.
Fluoride toothpaste starts with the first tooth. For a child under three, only a smear of toothpaste with 1000 ppm fluoride is needed. The amount is very small, about the size of a grain of rice. Brushing is done twice a day, morning and evening.
Toddler and preschool age#
From about age three to six, the amount increases to a pea-sized portion. The fluoride content may be 1000 to 1100 ppm. The child can practise brushing independently, but an adult should still brush the teeth thoroughly at least once a day, preferably in the evening.
The most important threat to the teeth is repeated sweets and sugary drinks during the day. Sweets are better eaten with meals, when saliva flow is stronger and the mouth pH recovers faster. Between meals, water is the best drink. Juice, milk and other sugary drinks can keep the teeth under constant acid attack if they are sipped throughout the day.
Dummy use and bottle use should end no later than around one or two years of age because prolonged use can affect how the bite develops. Night-time bottle use should end early because saliva flow is lower at night and the teeth are more vulnerable.
School age#
From around age seven, a child starts to manage brushing more independently, but an adult should still check the result, especially on the back teeth. Fluoride toothpaste can be the same strength as for adults. An electric toothbrush can be a good option because it does part of the brushing movement and may make brushing easier to keep up.
Cleaning between the teeth becomes important as soon as teeth touch each other. Floss or interdental brushes are suitable tools. An adult can help with interdental cleaning at first until the child learns to do it alone. This is especially important for the back teeth, where the toothbrush bristles do not reach the contact surfaces well enough.
When the permanent teeth erupt, fissure sealants can help protect the grooves of the back teeth from decay. The need for sealants can be discussed at a dental visit.
Technique matters more than special tools#
For children, the toothbrush does not need to be fancy if the basics are right. A soft brush, the correct amount of fluoride toothpaste and calm brushing twice a day do more than an expensive tool that is used only occasionally. The brush should be small enough for the child's mouth so that it reaches the back teeth.
A fixed order can help if the child is rushing. Start with the outer surfaces, then the inner surfaces and finish with the chewing surfaces. Adults can finish the areas that are easy to miss. Commonly missed spots are the cheek side of the back teeth, the gum line and the new permanent molars that erupt partly behind the baby teeth.
If a child resists brushing, the aim is not to turn every evening into a negotiation. A short, repeatable and predictable routine often works better than long explanations. The same place, the same order and a calm adult hand help the child know what happens next.
Common mistakes#
One common mistake is handing brushing over to the child too early. Fine motor skills under about age eight are usually not enough for a thorough job. Another common mistake is giving a child juice or milk from a bottle at night, because the sugar-containing liquid stays on the teeth for hours. A third mistake is waiting for a first dental visit until a problem has already developed. Prevention is more effective than repair.
When to seek care#
The first dental visit is usually recommended by age one or two at the latest. Regular check-ups matter because decay can be found early. If white or brown spots appear on the teeth, if a tooth is sensitive, or if the gums are swollen and bleed during brushing, early gum inflammation may be part of the picture, and a dental appointment is sensible. If the child has severe tooth pain, toothache first aid can help before the visit. A permanent tooth that comes through clearly crooked or a baby tooth that does not come out in time is also worth checking.
Further reading and sources#
Further reading: