Most parents assume braces are a teenage milestone—something to consider once all the adult teeth are in. But some bite problems are far easier to correct while your child is still growing. That's why the American Association of Orthodontists recommends a first orthodontic visit by age 7. Catching the right problems early can protect your child's smile, simplify future care, and save your family time later.
Around age 7, the first adult molars come in and give us a clearer picture of how your child's bite is developing. Many kids we see at this stage don't need treatment yet — and that's perfectly fine. If a concern is forming, a well-timed step now can guide jaw growth in the right direction and make future care much simpler. Here's what we look for.
Crossbites and Underbites
Picture a healthy bite: the upper teeth rest just slightly outside the lower teeth when your child closes their mouth. A crossbite flips this — some upper teeth end up sitting inside the lower teeth. This can happen with the front teeth, the back teeth, or both, and it's one of the bite problems that responds best to care early.
Back Teeth Crossbites
A back (posterior) crossbite usually develops when the upper jaw is narrower than it should be relative to the lower jaw. To compensate, many children shift their lower jaw to one side when they bite down. That shift seems harmless at first, but over time it can nudge the jaw to grow unevenly.
The good news? We can work with growth here. In younger children, the two halves of the upper jaw haven't fully joined in the middle yet. We take advantage of that with a palatal expander — a gentle appliance that gradually widens the upper jaw so both arches fit together naturally. Research supports correcting this type of crossbite early, showing it greatly improves function and prevents asymmetric jaw development.
Front Teeth Crossbites and Underbites
When one or more upper front teeth sit behind the lower front teeth, we want to address that sooner rather than later. Fixing the position early helps reduce tooth wear, protects gum tissue, and puts the bite back on track if the issue stems from how the teeth sit rather than the jaw itself; a simple appliance often does the job.
Sometimes a front crossbite is part of a bigger picture — an underbite, where the lower jaw sits forward of the upper jaw. Early care focuses on encouraging more balanced jaw growth and reducing how pronounced the problem becomes. For some children, this may reduce the likelihood of needing jaw surgery later. We always share honest expectations: every child grows on their own timeline, and we stay attentive throughout.
Overbites and Protruding Front Teeth
Lots of parents describe their child's bite as an "overbite" when the upper front teeth stick out past the lower ones. Orthodontists call this measurement overjet — the horizontal gap between the upper and lower front teeth. It typically develops when the lower jaw sits farther back, when the front teeth angle outward, or both.
Why Protruding Teeth Matter
Protruding front teeth carry a real safety concern. Research connects overjets greater than three millimeters to an increased risk of front tooth injury. For kids with overjets over eight millimeters, published studies report trauma in over 40 percent of cases. When front teeth stick out further than they should, that risk goes up — and kids are active.
For children with an overjet of five millimeters or more, early treatment can meaningfully reduce the chance of injuring those permanent front teeth. Some evidence also points to a positive effect on facial profile and, for certain children, on how they feel about their smile during those formative years.
What Early Treatment Can and Can't Do
We always want families to feel informed, not pressured. Research tells us that significant overjet can be corrected effectively whether we treat it early or in a single phase later on. When we recommend early intervention, it's because there's a meaningful benefit—usually protecting the front teeth from injury. We walk through the options with you and support whatever decision feels right for your family.
Crowding, Spacing, and Open Bites
Not every bite problem stems from how the upper and lower jaws relate. Some of the most common concerns involve how much room the teeth have — and habits that can quietly reshape a growing smile. These issues tend to show up during the mixed dentition stage, roughly ages 6 to 11, when baby teeth and adult teeth coexist.
Crowding and Space for Adult Teeth
Crowding happens when the jaw doesn't offer enough room for adult teeth to come in straight. Mild crowding sometimes resolves on its own as a child's jaw grows, so we often watch and wait before stepping in. When crowding is more pronounced, or when a baby tooth comes out too early, we make sure adult teeth have the space they need.
Appliances like space maintainers and holding arches hold that space open so adult teeth arrive without interference. Well-planned early orthodontic treatment helps us create room for crowded, erupting teeth, preserve the space permanent teeth need, and reduce the likelihood of tooth removal. In many cases, it also shortens future treatment.
Open Bites and Oral Habits
An open bite develops when the upper and lower front teeth don't meet when your child bites down — there's a visible gap between them. Thumb sucking, finger sucking, and long-term pacifier use can contribute to this type of bite problem, as well as posterior crossbites. A tongue that rests too far forward can gradually push the front teeth out of alignment too.
Sucking habits are completely normal for babies and young toddlers. Since some effects can linger even after a child stops the habit, experts suggest gently helping kids break them by around age 3. If a habit continues past that point, we work with you and your child on kind, age-appropriate ways to let it go — and if needed, an appliance can provide extra support.
Giving Your Child a Healthy Start
All of these bite problems — crossbites, underbites, overbites, crowding, and open bites — respond better to care while your child is still growing. Not every 7-year-old needs treatment right away, but every child benefits from knowing where they stand. An early visit gives us a clear picture of your child's developing smile and gives you real peace of mind. Whatever we find, we'll walk you through your options and build a plan that fits your family. Ready to get started? Call us to schedule your child's complimentary consultation—we'd love to meet them.
Frequently Asked Questions About Early Orthodontic Treatment
At what age should my child first see an orthodontist?
The American Association of Orthodontists recommends a first visit by age 7. If you notice something sooner — like a jaw that shifts to one side or a front tooth sitting behind the lower teeth — bring your child in earlier. We're always happy to take a look.
Does every child who comes in at age 7 need treatment?
Not at all. Many children simply need monitoring, and that's a perfectly normal outcome. Coming in early helps us spot anything developing and plan treatment for when it will work best.
What are the signs that my child might have a bite problem?
Watch for upper front teeth that stick out, a lower jaw that sits forward, teeth that don't line up when biting, crowding or overlapping, a gap between front teeth when biting down, or a thumb- or finger-sucking habit that continues past age 3.
Will early treatment mean my child won't need braces later?
Not always. Early care often shortens or simplifies later treatment and can reduce the need for tooth removal. Many children still go through a second phase once their adult teeth come in — and that's completely normal.
What kinds of appliances does early treatment involve?
It depends on what we find. Common options include palatal expanders to widen a narrow jaw, space maintainers to hold room for adult teeth, and habit appliances to help break thumb sucking. We always explain every recommendation in plain language — for both you and your child.
At Las Cruces Orthodontics, we help kids, teens, and adults across southern New Mexico build healthy, confident smiles they love. Our team provides warm, family-focused orthodontic care — from early evaluations for young children to braces and clear aligners for every age and stage. We'd be happy to answer any questions you have, so please reach out to us and schedule a visit.