What is Phase 1 (early / interceptive) orthodontics?

Most orthodontic treatment happens in the early teens, once nearly all the adult teeth have come in. Phase 1 orthodontics — also called early or interceptive treatment — is different: it's a shorter, targeted round of treatment done earlier, usually between ages six and ten, while a child still has a mix of baby and adult teeth and, crucially, a lot of jaw growth still ahead of them. That remaining growth is exactly what makes early treatment possible and, in the right cases, powerful.

The goal of Phase 1 is to intercept a developing problem while it's easiest to influence. Because a young child's jaw is still growing and hasn't fully hardened into its adult form, we can sometimes guide that growth in ways that simply aren't possible later. Examples include widening a narrow upper jaw with an expander to create room and correct a crossbite, guiding crowded teeth so adult teeth have space to come in properly, reducing a significant protrusion of the front teeth that leaves them vulnerable to injury, or addressing a bite problem before it becomes entrenched. Correcting these things early can head off more complicated problems — and occasionally the need for extractions or jaw surgery — down the road.

It's just as important to know that Phase 1 is not for every child, and a good orthodontist recommends it only when there's a clear, specific benefit to acting now rather than waiting. Many children are far better served by simply being monitored until all their adult teeth arrive, then treated once (if at all) in the teen years. Over-treating young children helps no one, which is why careful evaluation comes first.

When Phase 1 treatment is done, it's often followed later by a "Phase 2" — typically braces or aligners once the adult teeth are in — to finish aligning the smile. But the early groundwork frequently makes that second phase simpler, shorter, or less involved than it would otherwise have been, because the foundation has already been corrected.

Our board-certified orthodontist, Dr. Lee Wu, evaluates whether early treatment will genuinely help your child or whether watchful waiting is the smarter path — and because he shares an office and chart with your child's dentist, that assessment happens naturally as part of your child's ongoing care. If your child is between six and ten and you're wondering whether early treatment is warranted, ask us; we'll give you a straight answer and never recommend treatment your child doesn't need. Questions about cost or your benefits? Just call us and we'll talk it through.