Braces can fix an underbite when the problem is tooth position rather than jaw size, often with rubber bands. They will not fix it alone when the lower jaw has grown too far forward. When a child’s lower front teeth already sit ahead of the uppers, we look at whether growth can still be guided with an appliance around age 7 or 8. That visit is about catching the window, not booking surgery.
Can Braces Fix An Underbite?
Often, yes, especially when the underbite comes from how the teeth sit rather than the jaw underneath. When your child closes their teeth together in the chair, the lower front teeth land ahead of the upper front teeth instead of tucked behind them, and that small step is one of the first things we measure. The American Association of Orthodontists estimates that 5 to 10 percent of people worldwide have an underbite, and the cause can be dental, meaning tooth position, skeletal, meaning jaw structure, or both. That distinction is what shapes treatment. When the cause is mostly dental, braces move the lower teeth back into line, often with elastics that gently guide the bite closed. If you have ever looked into how to correct an overbite, the mechanics are similar, and the underbite pulls in the opposite direction. Many of the bite problems we treat with metal or clear braces respond well, and rubber bands do much of the work between visits.
Can Invisalign Fix An Underbite?
Clear aligners can help, but mostly for milder underbites that are largely about tooth position. If the lower jaw itself has grown too far forward, trays alone will not reposition bone, so aligners are not the right answer for a jaw-size problem. For the right case, talk Invisalign to see whether it fits your bite. Teenagers often move into Invisalign Teen once the early growth work is behind them. What aligners do well is tip and rotate teeth into a better relationship, which is plenty when the bite is off because of where the teeth lean, not because of where the jaw sits. In the first few weeks of wear, the change is gradual, and most patients feel the lower teeth easing back before anyone else can see it. When the jaw is the driver, aligners become one piece of a bigger plan rather than the whole answer.
Does My Child Need Treatment Now, Or Can We Wait?
Around age 7 or 8, there is a real window to guide the jaw while it is still growing, and that is the age to bring your child in for a first look. For kids with an emerging underbite, growing and expanding with an appliance can advance the upper teeth and jaw, and that early phase is usually followed by braces for kids or Invisalign Teen as teenagers. What we are really doing at that first visit is catching the growth window, not booking surgery. Children with an emerging underbite do best when they are evaluated early, while they are still growing, because that is when the jaw can still be steered rather than corrected later. If your child is older and growth has already slowed, the plan simply shifts to what is possible at that stage, and nothing is lost by coming in to see where things stand.
Is An Underbite The Same As A Crossbite?
They are different, though parents mix them up all the time. A crossbite in kids is when some of the bottom teeth sit outside some of the top teeth, often on one side, while an underbite is the whole lower jaw sitting in front of the upper jaw. In the chair, a crossbite might show as one or two back teeth catching on the wrong side, whereas an underbite shows as the lower arch pushed forward across the front. Both can wear teeth down and shift the bite over time, and both are easier to guide while a child is still growing. A crossbite can sometimes hide on one side and tilt the jaw as the child compensates, while an underbite is usually plain to see the moment your child smiles or bites down. The difference matters because the treatment paths are not the same, and the first exam is where that distinction gets sorted out.
Do You Need Jaw Surgery For An Underbite?
Not always, and many adults never reach that step. Some adult underbites can be treated with braces or Invisalign plus rubber bands, especially when the bite is off because of tooth position rather than jaw size. Surgery is on the table when the lower jaw itself has grown too far forward and braces alone cannot bring the teeth together, and it is not on the table when the underbite is mostly about where the teeth lean. Moderate to severe adult underbites sometimes need surgical orthodontics, and every case is different after evaluation. Dr. Koo, Dr. Lin, and I would walk you through exactly what that means for your bite before any decision is made. Adults often come in having lived with an underbite for years, and the front teeth show the wear and chipping from all that time. If you are weighing your adult orthodontic options, the goal is the same, a bite that fits, lines up, and lasts. What is never the right call is leaving a severe underbite to grind down the front teeth year after year.
Braces, Aligners, Growth, Or Surgery?
These four paths are the ones that come up most often when a family compares options side by side.
(1) Braces are the workhorse for underbites caused by tooth position, using brackets, wires, and elastics to pull the lower teeth back and the upper teeth forward into a balanced bite.
(2) Invisalign and clear aligners suit milder, mostly dental underbites, where tipping and rotating the teeth is enough to close the bite without moving the jaw.
(3) A growth appliance in a child who is still growing, usually around age 7 or 8, guides the upper jaw forward and makes room so that later braces or Invisalign Teen can finish the job.
(4) Surgical orthodontics, for a moderate to severe adult underbite where the jaw has finished growing, repositions the jaw so the teeth finally meet the way they should.
None of these is a default, and the right one depends on age, growth, and whether the jaw or the teeth are driving the bite.
Questions Parents Ask Us
Will an underbite get worse if we wait?
It often does, because a growing jaw tends to keep growing in the direction it has already started. An underbite that looks small at age 6 can look bigger by age 10, and the front teeth take the wear in the meantime. That is why an early look, around age 7 or 8, is worth it even if no treatment starts right away. Sometimes the plan is simply to watch and wait, but watching is an informed choice, not a guess.
What does the first visit for an underbite feel like?
It feels easy, and it is complimentary. Your child sits in the chair, we take a look at how the teeth come together, and photos or a scan show the bite from angles you cannot see in the mirror. You leave knowing whether anything needs to happen now or whether it makes sense to check back in a year. There is no pressure to start treatment that day, and most kids walk out thinking it was simpler than a regular dental checkup.
Can adults still fix an underbite without surgery?
Yes, many adults can, especially when the underbite is mostly about tooth position. Braces or Invisalign with rubber bands can pull the lower teeth back and the upper teeth forward enough to balance the bite. When the jaw itself is the problem and growth is finished, surgery may be part of the plan, but that is not every adult.
We see families from Langley, Guildford, and Scottsdale for underbite evaluations every week, and the first conversation is always complimentary. Come in, meet us, and book a consultation when the timing feels right to you. There is no pressure, only a clear picture of where your child’s bite stands and what the options look like.
