A practical guide for parents and carers on brushing, cleaning between teeth, diet, mouthguards and check-ups. Small habits set early tend to do the most work.
Good oral health sits underneath a lot of the things parents care about — eating well, sleeping well, speaking clearly and feeling confident at school — yet it is easy to leave alone until something hurts. As a parent or carer, the habits you set at home have more influence on your child's teeth than anything that happens in a dental chair.
This guide covers the practical side of children's dental health: choosing a toothbrush and toothpaste, teaching a brushing technique that actually cleans, cleaning between the teeth, feeding teeth well, protecting them during sport, and recognising when something needs a dentist to take a look.
Caring for children's teeth is about more than a bright, cavity-free smile. It is about reducing the risk of tooth decay, gum inflammation and dental injuries — problems that can affect how a child eats, sleeps, concentrates and feels about themselves, and which can carry through into adult life.
Baby teeth do real work. They allow a child to chew and speak properly, and they hold space for the adult teeth that follow. Decay in a baby tooth is not something to wait out; it can be painful, it can spread, and in some cases it can affect the developing adult tooth underneath.
Habits start earlier than most people expect. From the moment the first tooth appears — usually around six months of age — that tooth needs cleaning. A soft cloth or a small, soft-bristled brush is enough at that stage. The point is less about how much plaque comes off on day one and more about making cleaning an ordinary, unremarkable part of the day.
The same is true of the dental practice itself. Children who visit early, while nothing hurts, often find later appointments far less confronting. Bringing your child along to watch your own check-up is a low-pressure way to introduce the room, the chair and the noises before they are ever in the chair themselves.
For toothbrushes, look for soft bristles and a small head. Children's mouths are small and their gums are delicate, so a compact head reaches the back teeth without a struggle, and soft bristles clean along the gum line without scrubbing it. A chunky handle is easier for small hands to control. Replace the brush every few months, or sooner once the bristles start to splay.
Electric or manual is largely a matter of preference. Some children brush for longer with a powered brush because the built-in timer turns it into a game; others get on better with a manual brush. Technique and consistency matter more than the tool.
Toothpaste is where age matters. In Australia the general advice is:
Fluoride helps strengthen enamel and makes it more resistant to the acid produced by plaque bacteria. Matching the amount to your child's age matters, because young children tend to swallow toothpaste rather than spit it out. Your dentist can confirm what suits your child based on their age and their decay risk.
One small habit is worth teaching early: spit, don't rinse. Rinsing with water straight after brushing washes away the fluoride that has just been applied to the teeth.
Show before you tell. Angle the bristles towards the gum line at roughly forty-five degrees and use small, gentle circles rather than a hard back-and-forth scrub. Work around the outside surfaces, then the inside surfaces, then the chewing surfaces, so no section gets skipped in the rush.
Aim for two minutes, twice a day — once in the morning and once before bed. The night-time clean is the important one, because saliva flow drops during sleep and anything left on the teeth stays there for hours. A two-minute song, a sand timer or a brushing app all help; children are usually much quicker than they think they are.
Supervision is not optional early on. Most children do not have the fine motor control to clean thoroughly on their own until well into primary school, so plan on brushing for them at first, then brushing after them, then watching while they do it. A useful check is to let them brush and then go over the back teeth and the gum line yourself.
If brushing is a nightly battle, change the setting rather than the volume. Brush together in front of a mirror, let them choose the brush colour, or move the routine a little earlier so it does not collide with an overtired bedtime.
A toothbrush cleans three of the five surfaces of a tooth. The two surfaces where teeth touch each other are exactly where decay likes to start, and no amount of brushing reaches them.
Start cleaning between the teeth as soon as two teeth are touching, which for most children is well before school age. Child-sized floss picks are far easier to handle than a length of floss wound around adult fingers. Guide the floss gently between the teeth, curve it into a C shape against one tooth, slide it up and down, then repeat against the neighbouring tooth.
If flossing turns into a fight, interdental brushes or a water flosser can be a reasonable alternative, particularly for children with wider gaps or those wearing an orthodontic appliance. The tool that actually gets used every day is the one that will help.
Bedtime is the natural slot for this, immediately before the evening brush. Expect it to take a few weeks to become routine, and expect a little gum bleeding at first if the area has been neglected — that usually settles within a week or two of consistent cleaning. If it does not settle, mention it at your next appointment.
What children eat matters, but how often they eat it matters more. Every time sugar or refined starch reaches the mouth, plaque bacteria produce acid for a period afterwards. A biscuit eaten in one sitting is a single acid attack; the same biscuit nibbled across an afternoon keeps the mouth acidic for hours.
Teeth are built from minerals, so a balanced diet supports them directly. Calcium and phosphorus contribute to tooth structure, and vitamin D helps the body absorb calcium. Dairy foods, calcium-fortified alternatives, leafy greens, eggs, fish and whole grains all pull their weight here.
On the other side, sugary and acidic foods and drinks are the main drivers of decay and enamel erosion in children. Soft drinks, cordials, sports drinks, fruit juices and sticky lollies are worth keeping to occasional treats rather than everyday items. Fruit juice is a common blind spot: it is acidic and concentrated in sugar even when the label says natural.
Make water the default drink and milk the alternative. In fluoridated areas, tap water gives a small ongoing benefit as well as rinsing food away. If your child has had something acidic, wait about half an hour before brushing so the softened enamel has time to recover.
Involve children in the decisions rather than policing them. A child who understands why they are choosing water over cordial tends to keep making that choice when nobody is watching, which is the whole point.
Active play is worth every scraped knee, but a knock to the mouth can cost a front tooth. A mouthguard absorbs and spreads the force of an impact, reducing the risk of chipped, displaced or knocked-out teeth and of injuries to the lips and jaw.
A custom-fitted sports mouthguard is made from a model of your child's own teeth, so it stays put, allows reasonably clear speech and does not have to be clenched to stay in place. Boil-and-bite guards from a chemist are better than nothing, but they are bulkier, and children tend to wear them less consistently because of it. Because young jaws and teeth are still changing, a custom guard needs its fit checked each season.
Encourage mouthguard use at training as well as on game day, and for anything with a fall risk — football, hockey, basketball, skateboarding, cycling. If an adult tooth is knocked out, hold it by the crown rather than the root, rinse it briefly in milk or saline, put it back in the socket if you can, and see a dentist straight away. If you cannot put it back, keep it in milk and bring it with you. A knocked-out baby tooth should not be put back in. Either way, treat it as an emergency dental appointment rather than something to review in the morning.
Tooth decay. Decay is still one of the most common conditions of childhood. Caught early — often as a chalky white patch along the gum line — it can sometimes be arrested with better cleaning, dietary changes and fluoride, without a filling. Left longer, it needs restoring. Regular check-ups exist largely to find it while the treatment is small.
Gum inflammation. Gums that bleed when brushed are usually inflamed by plaque left along the gum line. In children this is generally reversible with better cleaning at home and a professional clean. Persistent bleeding, swelling or bad breath is worth having assessed rather than ignored.
Dental anxiety. Fear of the dentist often comes from the unknown, or from a first visit that was also an emergency. Short, friendly familiarisation visits, honest and simple language, and letting a child set the pace all help. It is worth avoiding words like hurt, needle and drill in the build-up — and worth avoiding promises that nothing at all will be felt, because a promise nobody can keep does more harm than good.
Thumb sucking, dummies and crowded teeth. Prolonged thumb or dummy habits can influence how the front teeth and jaws develop. Most children stop on their own; if the habit persists as the adult teeth arrive, it is worth discussing. As those teeth come through, your dentist can monitor spacing and bite and let you know whether an orthodontic assessment — and later, an option such as clear aligner treatment — may be worth considering.
Anything involving pain, swelling, a tooth that has changed colour, or a tooth that has taken a knock should be looked at promptly rather than watched at home.
Home care does the heavy lifting, but it works best alongside routine check-ups and cleans. These appointments let a dentist see the surfaces you cannot, take X-rays where they are warranted, and pick up changes while they are still small. How often your child needs to come in depends on their decay risk, and your dentist will suggest an interval rather than applying the same one to everybody.
Preventive treatment is a large part of children's dentistry. Fissure sealants place a thin protective coating over the deep grooves of the back teeth, where a toothbrush bristle cannot reach. Fluoride varnish can be applied to strengthen enamel where a child is at higher risk of decay. Both are quick, and neither involves removing tooth structure.
Education is the other half of it. Children who understand what plaque is, why the back teeth need attention and what sugar actually does to enamel tend to need far less nagging. Our team takes the time to show children how to brush on a model, explain what we are looking at, and answer their questions rather than only their parents'.
Helix Dental is a general and cosmetic dental practice at 2/299 Rio Vista Blvd, Mermaid Waters, on the Gold Coast. Our dentists and our oral health therapist see children of all ages, from a first check-up around the first birthday through to teenagers, and the practice is open Monday to Saturday, including Thursday evenings for families who cannot make daytime appointments.
If you would like to book a check-up, or you have a question about your child's teeth, our children's dentistry page sets out what an appointment involves, or you can call the practice on 07 5572 8969.
General information only. This page provides general information about dental treatment and is not a substitute for individual clinical advice. Whether any treatment is suitable for you can only be determined by a dentist after an examination. Results and recovery vary from person to person and are not guaranteed.
Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.
Good to know
The usual advice in Australia is a first visit around your child’s first birthday, or within six months of the first tooth appearing. Early visits are mostly about familiarity, checking that development is on track, and giving you advice on cleaning and diet that fits your child.
Talk about the visit in simple, neutral language, book a time of day when your child is rested, and let them bring something familiar. Bringing them along to watch a parent’s appointment first can also help. Avoid loading the visit with words like hurt, needle or drill beforehand.
A fissure sealant is a thin protective coating placed over the deep grooves of the back teeth, where food and plaque collect and a toothbrush cannot reach. It seals those grooves so they are easier to keep clean, and it does not involve removing tooth structure.
Fluoride is useful and safe when the amount matches the child’s age. Under 18 months, a soft brush and water are generally enough; from 18 months, a smear of low-fluoride children’s toothpaste; from around six years, a standard fluoride toothpaste. Supervise brushing so toothpaste is spat out rather than swallowed, and ask your dentist what suits your child.
Our Mermaid Waters dentists see children of all ages — call 07 5572 8969 or email hello@helixdental.com.au to arrange a visit.
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