Dental care in infancy and early childhood is frequently underemphasised — partly because primary (baby) teeth are sometimes perceived as less important than permanent teeth, and partly because tooth-brushing is one of the many daily battles of toddler life. In reality, the primary teeth are important for chewing, speech development, and space maintenance for permanent teeth; dental caries in young children is preventable and common; and the habits established in early childhood shape dental health for life.
Understanding when to start, what toothpaste to use, how to manage brushing resistance, and when to visit the dentist helps parents give their child's dental health the attention it deserves.
Healthbooq supports parents with evidence-based guidance on infant and toddler care, including dental hygiene, and how to access NHS dental care for young children.
When to Start and What to Use
Dental care begins with the first tooth — typically around six months, though timing varies widely. Before teeth appear, the gums can be wiped with a clean damp cloth; there is no clinical need for any specific gum care routine in the edentulous (toothless) period.
From the moment the first tooth erupts, twice-daily brushing with a fluoride toothpaste is recommended. Fluoride is the most important evidence-based component of dental decay prevention: it strengthens the enamel of developing teeth and inhibits the bacterial activity that causes caries. A common parental concern is that fluoride in toothpaste is harmful to swallow; in the small amounts used for children's brushing, this is not a safety concern.
The concentration of fluoride toothpaste appropriate for young children: UK guidance (Public Health England and the BSPD) recommends using a toothpaste containing at least 1,000 ppm (parts per million) fluoride for children from the first tooth through to age three, using a smear (the size of a grain of rice). Children from three to six years should use a pea-sized amount of 1,000 ppm fluoride toothpaste. Standard adult toothpaste (1,450 ppm fluoride) can be used for children from age three, with a pea-sized amount.
The use of "children's" toothpastes containing below 1,000 ppm fluoride is no longer recommended for young children, as they do not provide adequate caries protection. Parents should check the fluoride concentration on the label.
Brushing Technique and Parental Role
The recommended technique is brushing all tooth surfaces — outer surfaces, inner surfaces, and chewing surfaces — using small circular or gentle scrubbing motions. Brushing should last approximately two minutes twice daily (morning and before bed; the bedtime brush is the more important of the two, as saliva flow decreases during sleep, reducing the mouth's natural protective mechanism). After the bedtime brush, the child should have nothing to eat or drink except plain water.
Parental brushing (not supervised self-brushing) is recommended until at least age seven to eight, as young children do not have the manual dexterity or understanding of thoroughness required to brush effectively alone. In early toddlerhood, this means brushing teeth for a frequently resistant child — a common challenge.
Strategies for managing brushing resistance include making it a predictable part of routine (same time, same place, same sequence), using a brushing timer or song, allowing the child to choose their toothbrush (without compromising fluoride concentration in toothpaste), and using distraction. Ultimately, toothbrushing is a non-negotiable health activity, and the parent deciding firmly that it will happen — while working to make it as positive an experience as possible — is more effective than avoiding conflict by avoiding brushing.
Diet and Dental Health
Sugar is the dietary substrate for the bacteria (primarily Streptococcus mutans) that produce the acid that causes tooth decay. The frequency of sugar exposure matters as much as the quantity: four separate sugary snacks across the day are more damaging than the same total amount of sugar consumed in one sitting, because each sugar exposure produces a period of acid attack that erodes enamel.
Practical recommendations: limit sugary snacks and drinks to mealtimes; offer water as the primary drink between meals; avoid fruit juices and squash as regular drinks (they are acidic and sugary); do not add sugar or honey to food or drinks; avoid putting a baby to sleep with a bottle of milk or juice (which bathes the teeth in sugar throughout the night — "baby bottle tooth decay").
First Dental Visit
NHS guidance and dental professional advice is that the first dental visit should be as early as possible — ideally when the first tooth appears, or at least by the first birthday. NHS dental care is free for all children under eighteen. The first visits are primarily familiarisation — the dentist or hygienist checks the teeth, counts them, and helps the child become comfortable with the dental environment. There is no basis for delaying the first visit until problems arise.
Key Takeaways
Dental care should begin with the first tooth, using a fluoride toothpaste. Dental caries (tooth decay) in young children is preventable, and the habits established in the first years — twice-daily brushing with fluoride toothpaste, limiting sugary foods and drinks, and first dental attendance — create the foundation for lifelong dental health. NHS dental care is free for all children under eighteen in the UK. The most important single preventive measure is brushing with a fluoride toothpaste of the correct concentration from the moment the first tooth erupts.
