The timing of orthodontic treatment matters more than most parents realise. Starting at the right age can simplify treatment, reduce cost, and in some cases prevent problems from developing at all. Starting too early - or treating the wrong problem early - can waste time and money with no benefit.

As a parent, understanding the difference between "treat now" and "watch and wait" helps you have better conversations with your child's dentist and make more confident decisions.

Why Early Assessment Matters

Orthodontic problems don't appear suddenly in the teenage years - they develop gradually, often from a young age. A dentist who sees your child regularly can identify the early signs of crowding, bite problems, and jaw development issues long before they become severe.

The Australian Society of Orthodontists recommends an initial orthodontic assessment at around age 7 to 8. This is while a mix of baby and adult teeth is present - an ideal window to evaluate jaw growth, tooth eruption patterns, and bite development.

Assessment at this age doesn't mean treatment starts at this age. In many cases, the outcome is "everything looks on track" or "we'll reassess in 12 months." But it does mean problems that benefit from early intervention are caught at the optimal time.

What Is Early Interceptive Orthodontics?

Early interceptive orthodontics (sometimes called Phase 1 treatment) refers to treatment that begins while a child still has a mix of baby and permanent teeth, typically between ages 7 and 11.

The goal is not to achieve a perfect smile at this age. It is to:

  • Correct skeletal problems (jaw width, bite relationships) while the jaws are still growing and most responsive to guidance
  • Create space for permanent teeth to erupt in a better position
  • Reduce or eliminate habits that are affecting jaw development
  • Prevent more serious problems from developing

Phase 1 treatment is followed by a rest period (while remaining permanent teeth erupt) and then often Phase 2 treatment once all permanent teeth are present.

Problems That Benefit from Early Treatment

Crossbites: A posterior crossbite (where upper back teeth bite inside lower back teeth) causes the jaw to shift sideways to one side when closing. Left untreated, this can cause asymmetric jaw growth. Early correction with a palate expander is straightforward and effective.

An anterior crossbite (underbite) - where the lower front teeth bite in front of the upper - can indicate an underlying jaw discrepancy that is best managed before growth is complete.

Severe crowding with insufficient arch space: When the arch is too narrow or too small for the coming permanent teeth, early expansion or space management can reduce the crowding and may reduce or eliminate the need for extractions later.

Habits affecting development: Prolonged thumb sucking or finger sucking beyond age 4 to 5 can push the front teeth forward and widen the upper arch. Mouth breathing is associated with narrow arch development and altered jaw growth patterns. Addressing these early is worthwhile.

Significant overbite or open bite: Where the upper front teeth excessively overlap the lower (deep overbite) or don't overlap at all (open bite), early functional appliance treatment can sometimes improve the underlying jaw relationship during growth.

When Waiting Is the Right Decision

Not everything needs early treatment. The following situations often warrant monitoring rather than immediate intervention:

  • Mild crowding in a child with sufficient jaw growth potential - crowding often resolves as permanent teeth erupt and the jaw grows
  • Spacing between baby teeth - this is normal and desirable; it usually means there's room for the larger permanent teeth
  • Mildly protruding front teeth with no bite problem - often best addressed during full orthodontic treatment once all permanent teeth are present

The risk of treating too early is committing to appliances, appointments, and costs for a problem that would have resolved on its own - and still needing full treatment afterwards.

What Appliances Are Used?

Palate expander (maxillary expander): A fixed or removable appliance that widens the upper arch. The fixed version is worn 24 hours a day and activated by the parents with a small key for a prescribed number of turns per week. The removable version is worn at night and during the day at home.

Removable functional appliances: Devices worn at night that guide jaw growth and tooth eruption. Several designs exist (Twin Block, Trainer, Myobrace).

Space maintainers: When a baby tooth is lost early, a space maintainer holds the space until the permanent tooth erupts.

Limited braces: Sometimes braces on just the front four to six teeth are used in early treatment to address specific positional problems.

Phase 2 Treatment

After early treatment and a rest period, full orthodontic treatment (Phase 2) addresses the remaining tooth positions once all permanent teeth are present. For most patients, this involves Invisalign or fixed braces.

The key benefit of successful Phase 1 treatment is that Phase 2 is typically shorter, less complex, and may not require extractions that would otherwise have been needed. In a small number of cases, Phase 2 is not needed at all.

Cost of Early Orthodontic Treatment

Early interceptive treatment typically costs $2,000 to $5,000 depending on the appliances used and treatment length. This is separate from any Phase 2 treatment costs.

Most health funds with orthodontic extras cover contribute a lifetime benefit toward orthodontic treatment. Check whether your fund's benefit applies per course of treatment or as a total lifetime cap - as this affects how you allocate it between Phase 1 and Phase 2.

Children's Orthodontic Assessments at Serene Family Dental - Ropes Crossing

We monitor jaw and tooth development at every check-up appointment for children at our practice. If we identify anything that warrants further assessment, we'll explain exactly what we've observed and what we recommend.

We see families from Penrith, Blacktown, Mount Druitt, St Marys, Jordan Springs, Kingswood, St Clair, Glenmore Park and throughout western Sydney.

Book an orthodontic assessment for your child or call (02) 9053 1995.