Brushing children’s teeth can often turn into a small battle. Parents are in a hurry, the child does not want to stop playing or watching a cartoon, and the bathroom suddenly becomes a place for negotiation.
Most parents know how their child’s teeth should be brushed: twice a day, with a soft toothbrush and a small amount of toothpaste. The real problem begins when the child closes their mouth and turns their head away. Here is how to manage it without losing your mind.
Before the First Tooth Appears
Recommendations differ on this point. Some sources advise wiping the gums with gauze or a silicone finger brush after every feed, while others say that the oral tissues clean themselves and that routinely cleaning a toothless mouth is unnecessary. The truth lies somewhere in between.
What does make sense is getting your baby used to being touched inside the mouth. Keep it gentle, brief and pressure-free. When you introduce a toothbrush a few months later, it will not be the first unfamiliar sensation of this kind.
There is one important thing to remember. The bacteria that cause tooth decay do not appear in a child’s mouth on their own. Adults can pass them on through a licked dummy, a shared spoon or by tasting milk from the baby’s bottle teat. It may sound like a minor detail, but avoiding this is one of the most effective preventive measures available. And it costs nothing.
The First Tooth Changes the Rules
The first tooth usually appears between five and ten months of age, most commonly at around six to eight months. It is usually one of the lower front teeth. The normal range is wide, so it does not matter if your neighbour’s baby had teeth at four months while yours gets their first one at eleven months.
From this point onwards, however, the rule is clear: brush twice a day.
Do not use a silicone finger brush. It is useful for massaging the gums, but it cannot clean tooth enamel thoroughly. You need a proper toothbrush with a small head, very soft bristles and a thicker handle that is easy to hold.
Evening brushing is more important than morning brushing. Saliva production decreases at night, which means the teeth lose some of their natural protection. If one brushing session has to be shorter or less thorough, let it be the morning one. Never the other way around.
How Much Toothpaste to Use and What About Fluoride?
This is the subject that causes the most confusion. To be honest, even professional sources do not always agree.
Current recommendations from the European Academy of Paediatric Dentistry, which are also reflected in more recent Czech professional guidelines, are as follows:
- From the first tooth until the age of 2: toothpaste containing 1,000 ppm fluoride, in an amount the size of a grain of rice
- From 2 to 6 years: toothpaste containing 1,000 ppm fluoride, in an amount the size of a small pea
- From the age of 6: toothpaste containing 1,450 ppm fluoride, approximately one to two centimetres
Here is something you may not read elsewhere: you will also come across different figures. Older Czech guidelines recommend toothpaste containing only 400 or 500 ppm fluoride for very young children, and this information can still be found on websites that appear official. It is not simply an online mistake. It is an older generation of recommendations that has not yet been updated everywhere.
Why did the recommendation change? Research showed that the amount of toothpaste is more important than the concentration alone. A small amount of stronger toothpaste protects the teeth more effectively than a large amount of weaker toothpaste, while also being safer.
This is the key point: children up to approximately three to five years of age are unable to spit toothpaste out properly and may swallow between 50 and 70% of it. That is why the parent, not the child, should put toothpaste on the brush. The tube should not be left in a young child’s hands.
‼️If you do not want to use fluoride, toothpaste containing hydroxyapatite is an alternative. Hydroxyapatite is a mineral naturally found in tooth enamel. It can support remineralisation and is safe if swallowed. There is currently less long-term evidence available than there is for fluoride, but it is still a reasonable compromise and certainly preferable to toothpaste containing neither fluoride nor hydroxyapatite.
When a Toddler Refuses to Cooperate
This is what brushing looks like in many households: the child screams, turns their head, closes their mouth and the parent eventually puts the toothbrush away because it simply did not work that day. Songs, dancing or cartoons sometimes help. But sometimes none of them work.
What should you do when turning it into a game is not enough?
Change the position. Do not stand facing your child. Sit on the floor, lay the child on their back with their head in your lap and brush their teeth from above. You can see clearly into their mouth, both of your hands are free and the child has less room to turn their head away. Paediatric dentists often teach this position because it is similar to the way they examine children themselves.
You can also try the “knee-to-knee” position. Two adults sit facing each other with their knees touching. The child lies across their legs, with their back supported by one adult and their head in the other adult’s lap. One person holds the child’s hands while the other brushes. It is quick and effective.
Let the child have their own toothbrush. Allow them to hold it and “brush” their teeth independently. You can then use a second toothbrush to finish the job. This division of roles often works for a surprisingly long time.
Now for the uncomfortable part: sometimes you will simply have to brush the teeth of a child who is crying. This does not mean you have failed as a parent. It is a choice between thirty seconds of protest today and dental treatment at the age of three. Dentists who have to arrange general anaesthesia for two-year-olds with severely decayed front teeth can confirm this.
The rule is simple: be quick, confident and calm. Do not use unnecessary force, but do not negotiate either. The child needs to understand that this is not something they can vote on. It is like wearing a seat belt in the car.
Most children grow out of this phase at around the age of three. It will not last forever.
Age Three: When Technology Starts to Help
At around the age of three, the situation begins to change. Children understand more, want to do things independently and start responding to motivation.
This is when a sonic toothbrush begins to make sense. Not earlier. Experts generally do not recommend sonic toothbrushes for toddlers under the age of three, as the vibrations inside the mouth can frighten them. From the age of three, however, the situation is different.
It is important to be precise about what this type of toothbrush can and cannot do.
What it can do is encourage the child to brush for longer. A timer that signals when two minutes have passed and prompts the child to move to another part of the mouth does something that parents would otherwise have to supervise themselves. Educational animations, illuminated brush heads and stickers are not pointless gimmicks. Gamification has been shown to improve children’s willingness to cooperate and extend brushing time.
What it cannot do is teach the child the correct technique, clean areas where the child does not place the brush or replace parental supervision.
TrueLife divides its children’s toothbrush range by age because a three-year-old and a twelve-year-old need different types of toothbrushes. The SonicBrush Baby G is designed for children aged 3 to 6 and features an illuminated brush head, an educational animation and thirty animal stickers that children can use to personalise it. The SonicBrush Kid G is suitable for children aged 5 to 9. For older children and school pupils, there is the rechargeable SonicBrush Junior J100, which offers three modes based on how well the child has already mastered the brushing technique.
The goal is not perfect independent brushing. The goal is for the child to keep brushing long enough and stop fighting you over it. You can clean the remaining areas afterwards.
The Myth of Independent Brushing
One of the most common misconceptions in children’s oral hygiene is: “My child already brushes their own teeth.”
They do not. Or, more accurately, they do brush them, but not thoroughly. And it is not their fault.
Thorough brushing requires fine motor skills that children in nursery school and the first years of primary school have not yet fully developed. The small, precise movements needed around the gumline and at the back of the mouth are skills they learn later.
So how long should parents continue brushing their child’s teeth afterwards? Recommendations vary. Some sources say until the age of seven, others recommend doing so throughout the first years of primary school, while some suggest continuing until the age of twelve. The difference depends on what exactly is being assessed:
- Children can start brushing their own teeth from the age of three or four. Let them try.
- Parents should continue to brush the areas the child has missed for many years afterwards, especially the back molars, inner surfaces and the areas where the teeth meet the gums.
- Parents should continue checking even after they no longer need to brush the child’s teeth themselves.
A practical guideline also used by the Czech National Health Information Portal is to continue brushing your child’s teeth until they can write fluently. Once their hand can manage handwriting, it is usually capable of controlling a toothbrush with sufficient precision.
Interdental cleaning, however, is not determined by age. It depends on whether two teeth are touching. Most young children have gaps between their teeth and do not need floss. Once the teeth begin to touch, typically after the molars come through, the spaces between them need to be cleaned as well. Floss picks, which consist of floss attached to a plastic handle, are suitable for children. This task should be performed by a parent.
When Should a Child First Visit the Dentist?
By their first birthday, ideally around six months after the first tooth appears.
This is not because the child is expected to have tooth decay. The purpose is for them to become familiar with the dental practice, chair and dentist before they ever need to visit because of pain. The first appointment is usually short, often takes place while the child is sitting on the parent’s lap and is mainly about getting acquainted with the environment. It is also an opportunity for someone to check whether you are brushing correctly at home.
After that, children should visit the dentist twice a year.
Baby Bottle Tooth Decay: A Hidden Problem
There is one more issue worth knowing about.
Baby bottle tooth decay affects the upper front teeth of toddlers and can progress aggressively. It develops when the teeth are repeatedly and continuously exposed to liquids containing sugar, typically when a child falls asleep with a bottle of sweetened tea or juice.
Saliva production decreases at night, giving acids more opportunity to damage the teeth. The enamel of baby teeth is also thinner than that of adult teeth, so the decay progresses quickly.
Prevention may sound boring, but it works. Put only unsweetened water or tea in the bottle. Start switching to a cup at around one year of age. After the final evening brushing, offer only water.
One More Thing About Baby Teeth
Yes, baby teeth will eventually fall out, but until then they have an important job to do. Children use them to eat and learn to speak, and most importantly, they hold space for the permanent teeth developing underneath them.
If a baby tooth is lost too early because of decay, the neighbouring teeth can tilt into the empty space. The permanent tooth then has nowhere to grow. The result may be the need for orthodontic treatment.
Baby teeth also have thinner and less mineralised enamel. Decay can reach the nerve much faster than you might expect.
So yes, decay in baby teeth should be treated. More importantly, it should be prevented in the first place.
Frequently Asked Questions
When should I start brushing my baby’s teeth?
Brushing should begin as soon as the first tooth appears, usually between the fifth and tenth month. Before the first tooth appears, daily gum cleaning is not essential, but it is useful to get the baby accustomed to being touched inside the mouth. Once the first tooth appears, brush twice a day with a soft children’s toothbrush.
Should children’s toothpaste contain fluoride?
Current professional recommendations advise using fluoride toothpaste from the first tooth onwards, with a concentration of 1,000 ppm. The amount is crucial: use only a rice-grain-sized amount until the age of two and a pea-sized amount between the ages of two and six. You may also come across older Czech recommendations advising lower concentrations. If you do not want to use fluoride, toothpaste containing hydroxyapatite is an alternative.
Until what age should parents brush their child’s teeth?
Parents should continue brushing the child’s teeth at least until the child can write fluently, which usually means throughout the first years of primary school. Children can start brushing independently from the age of three, but a parent should still finish by cleaning the back molars, inner surfaces and gumline. The reason is underdeveloped fine motor skills, not a lack of effort.
From what age is a sonic toothbrush suitable for children?
A sonic toothbrush is suitable for children from the age of three, always under parental supervision. Experts do not recommend it for younger children because the vibrations inside the mouth may frighten toddlers. A sonic toothbrush mainly helps with brushing time and motivation. It does not replace the correct technique or the need for a parent to finish cleaning the teeth.
Does decay in a baby tooth matter if the tooth will fall out anyway?
Yes, it does. Baby teeth hold space for permanent teeth. If they are lost too early, neighbouring teeth can tilt into the gap, leaving the permanent tooth with insufficient space to grow. The enamel of baby teeth is also thinner, so decay can reach the nerve more quickly. Untreated decay may even damage the developing permanent tooth underneath.
