Healthy teeth in childhood set the foundation for a lifetime of good oral health. Yet dental decay remains one of the most common chronic diseases affecting Australian children - and most of it is entirely preventable with the right knowledge and habits.

Here's your complete guide to children's dental health, from the first tooth to the teenage years.

When Should My Child First See a Dentist?

The Australian Dental Association recommends first dental visits by age one, or within six months of the first baby tooth appearing - whichever comes first. This might seem early, but there are good reasons:

  • Baby teeth can develop decay as soon as they erupt
  • Early visits let your dentist check for any developmental concerns
  • Most importantly, early positive experiences build a healthy attitude toward dental care

At the first visit, the dentist will do a brief check of the baby's teeth and gums, discuss feeding habits (bottle feeding and breastfeeding both have implications for tooth health), and give parents practical guidance on home care.

Baby Teeth Matter More Than You Think

A common misconception is that baby (primary) teeth don't matter much because they'll fall out anyway. This isn't true:

Baby teeth hold space for permanent teeth. When a baby tooth is lost prematurely (due to decay or trauma), neighbouring teeth drift into the gap - causing crowding and alignment problems that often require orthodontic treatment later.

Tooth decay in baby teeth hurts. Children experience the same pain from cavities as adults do. Untreated decay can lead to abscesses, infections, and sleepless nights for the whole family.

Early decay predicts future decay. Children who have cavities in their baby teeth are significantly more likely to develop cavities in their permanent teeth.

How to Care for Baby Teeth

From birth: Wipe your baby's gums with a clean damp cloth after each feed to remove bacteria and establish a cleaning habit.

First tooth: Begin brushing immediately with a soft infant toothbrush and a smear of low-fluoride toothpaste (for children under 18 months). No toothpaste is needed for infants under 6 months.

18 months to 6 years: Use a pea-sized amount of children's toothpaste (with lower fluoride than adult toothpaste). Brush for your child - don't let them do it alone yet. Children lack the dexterity to brush effectively until around age 7–8.

Key habits to establish:

  • Brush twice daily - morning and before bed
  • No bottles of milk or juice to sleep with - pooled sugary liquid causes rapid decay ("bottle caries")
  • Limit sugary snacks and drinks to mealtimes
  • Drink fluoridated tap water - Sydney's water supply is fluoridated and it significantly reduces decay rates

What Are Fissure Sealants?

Fissure sealants are a thin plastic coating applied to the chewing surfaces of back teeth (molars). The deep grooves (fissures) on these teeth are notoriously hard to clean - sealants fill them in, creating a smooth surface that's much easier to keep clean and far more resistant to decay.

Sealants are typically applied to the first permanent molars (which erupt around age 6) and the second permanent molars (around age 12). The procedure is quick, painless, and highly effective - studies show fissure sealants reduce decay in treated teeth by up to 80%.

Managing Common Children's Dental Problems

Teething

Teething typically begins around 6 months and continues until around age 3. Symptoms include drooling, chewing on objects, irritability, and swollen gums. Teething doesn't cause fever - if your child has a fever, consult your GP.

Relief options: chilled (not frozen) teething rings, gentle gum massage with a clean finger, and age-appropriate teething gels used sparingly.

Thumb Sucking and Dummy Use

Non-nutritive sucking (thumb, dummy) is normal and comforting for young children. It generally isn't a dental concern if stopped before age 3–4. Prolonged sucking beyond this age can cause:

  • Teeth to protrude (stick out)
  • Narrowing of the upper jaw
  • Open bite (front teeth that don't meet when biting)

Most children give up dummies and thumb sucking naturally. If it continues past age 4, speak with your dentist about gentle strategies.

Knocked-Out Baby Tooth

If a baby tooth is knocked out, do not attempt to reinsert it - reimplanting a baby tooth can damage the developing permanent tooth beneath. Instead, call your dentist for advice and keep any tooth fragments for assessment.

Knocked-out permanent teeth (in older children) are a dental emergency - see our guide on emergency dental care.

The Child Dental Benefits Schedule (CDBS)

The Child Dental Benefits Schedule is an Australian Government program providing up to $1,095 in dental benefits over two consecutive calendar years for eligible children aged 2–17.

Eligible families receive a letter from Medicare. The benefit covers:

  • Check-ups and X-rays
  • Cleaning and fluoride treatments
  • Fissure sealants
  • Fillings
  • Root canal treatment (front teeth only)
  • Extractions

It does not cover orthodontic treatment or cosmetic procedures.

At Serene Family Dental, we bulk bill under the CDBS - meaning no out-of-pocket cost for eligible families for covered services.

Building Positive Dental Habits in Teenagers

Adolescence brings new dental challenges: orthodontic treatment, wisdom teeth beginning to develop, and - let's be honest - hygiene habits that sometimes slip. Key points for parents of teenagers:

Orthodontic assessment: Age 12–14 is typically the best time to start orthodontic treatment if needed. Earlier assessment (age 8–10) can identify issues that benefit from early intervention.

Wisdom teeth monitoring: Wisdom teeth typically begin developing in the mid-teens and often cause crowding or become impacted. Regular X-rays from age 16 onwards allow timely monitoring and planning.

Sports mouthguards: Any teenager playing contact sport (football, rugby, basketball, hockey) should wear a custom-fitted mouthguard. Off-the-shelf mouthguards offer significantly less protection.

Diet awareness: Teenagers often consume more energy drinks, sports drinks, and soft drinks - all of which are highly acidic and erosive to enamel. Encourage water as the primary drink.

Children's Dentistry at Serene Family Dental

Our team at Serene Family Dental in Ropes Crossing is experienced in working with children of all ages - from infants at their first visit to teenagers managing complex orthodontic and wisdom tooth issues. We take a calm, unhurried approach that helps children feel comfortable from the very first appointment.

We bulk bill under the Child Dental Benefits Schedule and accept all major health funds.

Located at Unit G4/80C Ropes Crossing Blvd, Ropes Crossing NSW 2760, we serve families across Penrith, St Marys, Jordan Springs, Kingswood, Blacktown, Mount Druitt, Glenmore Park, St Clair and surrounding suburbs.

Book your child's appointment online or call us on (02) 9053 1995.