How to Care for Children’s Teeth at Every Age

As children grow, their teeth change too and each stage brings different needs. From first baby teeth to school-age smiles and the teenage years, good habits early on can help keep teeth and gums healthy for life. Our guide explains how to care for your child’s teeth at every age, with simple advice on brushing, diet and dental visits.

First teeth

Your baby’s first teeth usually start to appear at around six months.

Most children have all 20 baby teeth by about 2.5 years old.

Baby teeth are very important. They help your child bite and chew food, learn to talk and smile with confidence. They also keep space ready for the adult teeth that will come later.

Baby teeth require the same care and daily routines as permanent ones. If your child’s baby teeth develop cavities and decay, the same bacteria will attack their adult teeth and put them at a much higher risk of oral health issues later on in life.

As soon as the first tooth appears, start cleaning it every day. At first, you can gently wipe the tooth with a clean cloth or soft gauze. You can also start with a baby finger toothbrush. A baby finger toothbrush is a soft, silicone slip-on brush designed to gently clean a baby's emerging teeth and massage sore gums. It provides parents with precise control during early oral hygiene routines. 

As more teeth come through, use a small, soft baby toothbrush.

Use:

• A smear of fluoride toothpaste (at least 1000ppm) for children under three.

• A pea-sized amount of fluoride toothpaste (1350–1500ppm) from age three.

Brush your child’s teeth twice a day:

• After breakfast

• Last thing at night

  
  

Around your child's first birthday, create a healthy routine of brushing 2 times daily for 2 minutes each time. Consider setting up a bedtime routine of brushing your child's teeth after their last meal, reading them a book and then getting them to bed at a regular bedtime -brush, book, bed.

Once your child is old enough, after brushing, encourage them to spit out the toothpaste and rinse out their mouth.

To help keep teeth healthy:

• Keep sugary foods and drinks to mealtimes.

• Make water the family drink of choice. Regular tap water is the healthiest drink for your child's teeth. Drinking plenty of water cleanses your child's mouth and helps maintain saliva flow, which also washes away decay-causing bacteria.

• Avoid adding sugar to drinks.

• Avoid using cups or bottles to soothe your child. When little ones get fussy, it's tempting to offer them a little formula or milk, but this exposes little teeth to sugars for long periods. Use a regular dummy to calm your child, but be sure not to dip it in honey or any other sweetener.

• Handle dummies, spoons and cups with care - Tooth decay-causing bacteria can easily move from mouth to mouth. So, for example, you should avoid putting your baby's dummy in your mouth and then giving it to your child, or tasting your baby's food before offering them a bite from the same spoon.

• Avoid bedtimes bottles - Do not put babies to bed with milk or juice, as this causes rapid tooth decay.

When sugar is consumed gradually over a long period, it can be more damaging to your toddler’s teeth than having it eaten or drunk all at once. This is one reason sippy cups are considered a major contributor to tooth decay. If your child spends much of the day carrying around a sippy cup containing anything other than water, sugar can remain in contact with their teeth for extended periods, giving acids more opportunity to cause damage. Children are generally advised to be weaned off bottles and sippy cups by 12 months of age, so if your toddler is still regularly using one, it may be time to phase it out.

Source: www.oralb.co.uk

It is a good idea to take your child to the dentist as soon as their first teeth appear. Early visits help children get used to the dental setting and can make future visits feel easier.

Starting early makes a real difference. Looking after baby teeth now helps build healthy habits for life.

Stopping tooth decay in milk teeth is vital to prevent severe pain and infection, and to ensure adult teeth emerge correctly. Baby teeth act as natural "spacers," and losing them prematurely can cause crowding, requiring orthodontic work later.

School years

At around six years old, your child will start to get their adult teeth. The first adult teeth often appear right at the back, sometimes before any baby teeth become wobbly. These new teeth need extra care because they have to last for many years.

Children should brush their teeth twice a day using fluoride toothpaste (1350–1500ppm). Use a pea to a regular sized amount of toothpaste and aim for two minutes each time.

Even when children want to brush on their own, they still need help or supervision until at least age seven. Many older children still need a little reminding, too.

A good daily routine includes:

• Brushing after breakfast

• Brushing last thing at night

• Cleaning between teeth when you can

Disclosing tablets are a very helpful tool for teaching children how to brush their teeth effectively. They encourage careful brushing by highlighting any plaque that remains and showing children where bacteria can hide.

During the school years, eating habits become even more important. Having sugary foods and drinks too often can lead to tooth decay.

Source: www.oralb.co.uk

To help protect your child’s teeth:

• Keep sugary foods and drinks to mealtimes

• Offer water between meals

• Try to limit dried fruit and sticky snacks - Some foods can cling to a child's teeth, giving 'bad-guy' bacteria plenty of sugar to feast on. Sticky foods that promote tooth decay include raisins and other dried fruits, gummy or jelly sweets, fruit roll-ups and snack bars with honey. Try to limit these foods in your child's diet and have kids brush or rinse with plain water after eating them.

• Choose savoury snacks like cheese or vegetables when possible

• Protect active teeth: Ask your dentist about protective fissure sealants to prevent cavities on permanent back molars.

Making cavity prevention a family priority

Kids learn from the adults around them. That's why parents and guardians should take excellent care of their own teeth. As one dentist puts it: "Bad teeth don't necessarily run in the family, but bad dental habits do."

Set a positive example by letting little ones watch while you brush and floss. Explain that this is something we do twice a day, morning and night, even when we are away from home. Mark dental appointments on the family calendar, which shows kids that regular checkups are a top priority.

Encourage good habits by adding fun to your child's routine. Toddlers and preschoolers may enjoy brushing to music or marking their progress on a tooth care calendar.

Regular visits to the dental team are important too. They help spot any problems early and help your child feel more relaxed and confident about dental visits.

Healthy habits during the school years help keep adult teeth strong for life.

Teen years

The teenage years bring more independence and more choices that can affect teeth and gums. Food and drink habits, busy routines, and social pressures can all have an impact on oral health.

A healthy smile can make a big difference to confidence. It can affect how teens feel about themselves and how they come across to others.

When teeth and gums are not looked after properly, problems can include:

• Bad breath

• Stained teeth

• Tooth decay

• Gum disease

• Dental erosion

Teenagers should aim to:

• Brush twice a day for two minutes

• Use fluoride toothpaste (1350–1500ppm)

• Clean between teeth every day

• Visit their dentist regularly

Diet also plays a big part. Every time sugary food or drinks are eaten or sipped, teeth come under attack from acid.

Core Daily Care

• Brush Effectively: Brush twice a day (morning and last thing at night) using fluoride toothpaste (1,350 to 1,500 ppm). Spit and rinse your mouth with fresh water to prevent food debris staying on your teeth.

• Clean Between Teeth: Plaque hides where brushes can't reach. Use floss or interdental brushes once a day to prevent cavities between teeth.

• Time It Right: Do not brush immediately after eating or drinking acidic items (like fruit or fizzy drinks) as this wears away softened enamel.

  
  

Diet & Lifestyle

• Control Sugar: Try to stick to three meals a day rather than snacking often to reduce acid attacks on tooth enamel.

• Choose water between meals and stay hydrated: Drink water throughout the day to wash away food and bacteria. Chewing sugar-free gum after meals also stimulates saliva flow, which naturally neutralizes acids.

• Cut down on fizzy drinks and limit sugary energy drinks: Sports, fizzy, and energy drinks are highly acidic and packed with sugar. Drink water instead to protect your enamel.

• Avoid Vaping & Smoking: Vaping and smoking are highly detrimental to oral health. They stain teeth, damage gums, and significantly increase the risk of gum disease and mouth cancer.

• Skip Oral Piercings: Tongue and lip piercings can chip teeth, cause gum recession, and create sites for severe infection.

  
  

Safety & Orthodontics

• Wear a Mouthguard: If you play contact sports, always wear a custom-fitted mouthguard to prevent broken or knocked-out teeth.

• Braces Care: If you have braces or retainers, keep them meticulously clean. Food gets trapped easily, so use specialized brushes and follow all instructions from your orthodontist to avoid stains and decay.

• Regular Check-ups: Visit the dentist for regular checkups, even if your teeth feel perfectly fine.

Teenage years are an important time for building healthy habits that can protect your smile well into adult life.

For more detailed information, review the complete Teens' Teeth Guide from the Oral Health Foundation.

Final Thoughts

Looking after your child’s teeth doesn’t need to be complicated. Small daily habits like brushing twice a day, choosing tooth-friendly snacks and visiting the dentist regularly can make a big difference at every stage of childhood.

As children grow, their routines and needs will change, but the goal stays the same: keeping teeth and gums healthy for life. By building good habits early and supporting them as they grow, you’re helping your child protect their smile now and in the future.