Most parents are surprised when I tell them their child’s first orthodontic visit should happen around age 7. The kid still has baby teeth. Nothing looks crooked. There’s no obvious problem, so why would an orthodontist need to look?
“When should my child see an orthodontist” is the question I hear most often from parents of young kids, and my answer is 7, whether or not anything looks wrong. The American Association of Orthodontists recommends a first check-up no later than age 7, and I agree with that recommendation for reasons that have nothing to do with starting braces early. Most 7-year-olds I examine don’t need treatment. What they need is an orthodontist who has looked, knows what’s coming, and can tell you when, or whether, anything needs to happen.
This guide covers why 7 is the right age, what I’m actually checking during that first exam, why the most common outcome is “nothing yet,” the cases where early treatment changes the result, and how a first visit works at Varble Orthodontics. If your child is 7 or older and hasn’t had an evaluation, you should finish this knowing what the visit is for and what to ask any orthodontist you’re considering.
Why Age 7
Around age 6 or 7, the first adult molars come in behind the last baby teeth, and the front baby teeth start giving way to adult incisors. For the next several years, your child has both kinds of teeth at once. Orthodontists call this mixed dentition.
Mixed dentition, roughly ages 6 to 12, is the window when an orthodontist can read how the adult smile is forming before it’s finished.
That mix is what makes 7 useful. With the adult molars in, I can see how the back teeth meet, which tells me how the upper and lower jaws relate to each other. With the adult incisors arriving, I can see how much room there is in the front and how those teeth are lining up. The remaining adult teeth are still inside the jaw, and a panoramic X-ray shows me where each is sitting and which direction it’s headed. That’s a preview of the next five years, available in a 30-minute visit.
The jaws are also still growing at 7, and growth is the part I can only work with while it’s happening. Your child’s upper jaw is two halves joined at the roof of the mouth by a seam that stays flexible through childhood and fuses in the early teens. If the upper jaw is too narrow, widening it at 8 is a routine appliance worn for a few months. Widening it at 16 is a harder conversation. The same is true of how the lower jaw grows forward and how the face lengthens. Some problems are simplest to correct while the structures are still moving, and that opportunity closes on its own schedule, not ours.
Two assumptions keep families from coming in at 7. The first is that you’d notice a problem yourself. Some problems are visible: teeth that stick out, a lower jaw that sits forward. Many aren’t. A crossbite in the back teeth (upper teeth biting inside the lower ones instead of outside), an adult tooth with nowhere to erupt, an upper jaw that’s a few millimeters narrow all look fine from across the dinner table. The second assumption is that your dentist would catch it. A good pediatric dentist watches for these things and refers when they see them, but their exam is built around cavities, gums, and the teeth that are already in. Reading growth and eruption patterns is the orthodontist’s job, and it’s a different exam.
So when should my child see an orthodontist? At 7, because it’s the first age when I can see enough to know whether treatment is coming, roughly when, and whether anything should happen before then. It doesn’t mean a 7-year-old is likely to need treatment. Waiting until all the adult teeth are in, usually around 12, means finding out about a narrow jaw or a blocked tooth after the easiest window to correct it has passed. Coming in much before 7 usually means there isn’t enough to see yet.
What I’m Actually Looking At
A first exam at 7 is not a search for crooked teeth. Crooked baby teeth mean very little, and plenty of straight baby teeth sit on top of a jaw that’s going to run out of room. I’m reading how the jaws are growing, how the bite fits, and where the adult teeth are headed. Here’s what that comes down to.
| What I check | What I’m looking for | What it can mean |
| Space | How much room the adult front teeth have, and whether the baby molars are holding space for the teeth behind them | Whether crowding is coming, and whether it’s the kind that resolves with growth or the kind that won’t |
| Crossbites | Upper teeth that bite inside the lower teeth, in front or in back | A narrow upper jaw or a jaw that shifts to one side when closing; both are easier to correct while the jaw is still growing |
| Bite depth | How far the upper front teeth overlap the lower ones, or whether they meet at all | A deep bite, an open bite, or a lower jaw that’s sitting too far back or forward |
| Missing, extra, or blocked teeth | The X-ray: is every adult tooth present, and does each have a path to come in | A tooth that will need help erupting, a baby tooth that needs to come out on a schedule, or a gap that needs planning |
| Habits | Thumb or finger sucking, tongue posture, mouth breathing | Changes to jaw shape and bite that stop progressing once the habit does |
Space and crowding
The adult front teeth are bigger than the baby teeth they replace, so a little crowding as they come in is normal and often works itself out as the jaw grows. What I’m measuring is whether the arch, the curve of the jaw the teeth sit in, has room for all of them, or whether the numbers don’t add up. The baby molars matter here more than parents expect. They’re wider than the adult teeth that eventually replace them, and that extra width is space the arch gets back later. If a baby molar is lost early to a cavity, the teeth beside it drift into the gap and that space is gone. Part of the exam is checking that the placeholders are still doing their job.
Crossbites
Your upper teeth should sit slightly outside your lower teeth when you bite down. When any of them sit inside instead, that’s a crossbite. In the front, it often means the lower jaw is growing ahead of the upper. In the back, it usually means the upper jaw is too narrow. A child with a back crossbite will often shift the jaw to one side to get the teeth to fit, and over years that shift can shape the jaw unevenly. Both kinds are among the clearest reasons to treat early, because the correction relies on a jaw that’s still growing. Our post on bite problems and how they get corrected goes deeper on what each type means.
Bite depth
I look at how the front teeth overlap vertically and how far forward or back the lower jaw sits. Upper front teeth that cover most of the lower ones is a deep bite. Front teeth that don’t touch at all is an open bite, which at this age usually points to a habit. A lower jaw that sits well behind the upper, so the upper front teeth stick out, is the profile most parents recognize as “an overbite.” At 7, most of these are a note in the chart rather than a reason to act. I’m establishing the baseline so I can tell at 8 or 9 whether growth is closing the gap or widening it.
Missing, extra, or blocked teeth
This is the part of the exam only an X-ray can do. A panoramic X-ray shows every adult tooth still in the jaw and the angle it’s taking toward the surface. Some kids are missing an adult tooth, most often a second premolar (one of the back teeth) or an upper lateral incisor (the tooth beside the two front teeth), and knowing that at 7 changes how we plan the space. Some have an extra tooth sitting in the way. The one I watch most closely is the upper canine, the pointed tooth at the corner of the smile, which comes in around 11 or 12 and has the longest path of any tooth. If it’s angled wrong at 7 or 8, a small early intervention, sometimes just removing a baby tooth on time, can let it come in on its own. Found at 13, the same canine may be stuck in the bone and need surgery to bring down.
Habits
Thumb and finger sucking past age 5 or 6 pushes the upper front teeth forward, holds the lower ones back, and can narrow the upper jaw. Tongue thrusting and mouth breathing do quieter versions of the same thing over time. I’m not here to lecture your child. I want to know whether a habit is still active, because if it is, correcting the bite before the habit stops is treating the symptom. The fix is often a conversation with the child and a simple appliance that makes the habit unsatisfying. The bite usually follows.
What the Visit Looks Like, Start to Finish
The first visit is the free VO Smile Assessment, and for a 7-year-old it runs about 30 minutes. Nothing hurts. Nothing is glued on. Most kids leave thinking the coolest part was watching their teeth appear on a screen. Here’s the sequence, in the order it happens.
- Records. We take a panoramic X-ray, a set of photos of the face and teeth, and a digital 3D scan of the mouth with a small wand. The scan replaces the tray of putty you may remember from your own childhood, and it takes a couple of minutes. The scan and X-ray are what let me see the teeth that haven’t come in yet.
- The exam. I look at everything in that table: how the back teeth meet, whether anything is in crossbite, how the front teeth overlap, how the jaw moves when your child opens and closes, and whether there are signs of a habit. I also look at the face in profile and from the front, because the teeth sit inside a growing face and the two have to be read together.
- Reading the records with you. I put the X-ray and scan on the screen and walk you through what I see, tooth by tooth where it matters. If there’s a canine angled the wrong way or a baby molar that’s already been lost, you’ll see it. If everything is on track, you’ll see that too, and I’ll show you what I expect to happen over the next couple of years.
- The recommendation. There are three possible outcomes, covered in the next two sections. Nothing needed now, with a recheck in a year. A short early treatment while growth is on our side. Or a real problem where the right move is still to watch and start on a set trigger. I’ll tell you which one your child is and why, and you’ll leave with it in writing.
- Questions. Bring them. Parents most often ask what would have happened if they’d waited, what the recheck schedule looks like, and what any early treatment costs. All fair. If treatment is indicated and you’re ready, we can start the same day; if you’d rather think about it, nothing changes about the plan.
The page on what to expect at your first visit covers the logistics: forms, insurance, what to bring, how long to plan for.
The Most Common Outcome: Nothing Yet
Here’s what I say most often at the end of a 7-year-old’s first exam: everything is developing the way I’d want, there’s nothing to do right now, and I’d like to see you back in a year.
Parents sometimes hear that as a wasted visit. It isn’t, for two reasons.
The first is that “nothing yet” is a diagnosis, and it took the exam to make it. I can tell you that with the X-ray in front of me because I’ve counted the adult teeth, checked the path of the canines, measured the space, and looked at the bite. Without the visit, you’d have the same words from a neighbor or a search engine, and they wouldn’t mean anything. With it, you have an orthodontist who has seen your child’s own mouth and is telling you it’s fine.
The second is that the visit starts a record. Growth is the whole story at this age, and growth only shows up as change between two points in time. The records we take at 7 are the baseline. When your child comes back at 8, I’m comparing the new X-ray and scan to the old ones, and what I’m looking for is direction: is the crowding resolving as the jaw grows, or getting tighter? Is that canine straightening out on its own, or drifting further off course? Is the bite that looked a little deep at 7 the same, better, or worse? Those are questions a single visit can’t answer and a second one usually can.
We call this growth monitoring. It means periodic rechecks, usually every 6 to 12 months depending on what I’m watching, with new records when they’ll tell me something. There’s no appliance, no treatment, and no charge for the rechecks. It’s the plan for most of the 7-year-olds I see.
One honest caveat, because I don’t want this section to read as “waiting is always fine.” It isn’t. Growth monitoring is the right call when the exam shows nothing that gets harder to fix by waiting. When it shows something that does, waiting a year has a cost, and I’ll say so plainly. The value of the visit at 7 is that I get to make that distinction with information instead of guessing. The next section covers the cases where the answer is “yes, now.”
When Early Treatment Does Make a Difference
For most children, orthodontic treatment happens once, in the early teens, after the adult teeth are in. A few need something done earlier, while the jaw is still growing, and then the full treatment later. That’s two-phase treatment: the early round is Phase 1, and the full treatment in the teens is Phase 2.
What Phase 1 is for
Phase 1 is a targeted fix for one problem, done in the window when growth makes it easier. It typically starts between 7 and 9 and runs 6 to 12 months of active treatment. It’s rarely a full set of braces. More often it’s a single appliance: a palate expander to widen a narrow upper jaw, partial braces on the front teeth to correct a crossbite or make room for a blocked tooth, or a small appliance to interrupt a habit. When the goal is met, the appliance comes off, your child wears a retainer to hold the result, and we go back to watching growth until the remaining adult teeth arrive.
The cases where I recommend it share a pattern. There’s a structural problem that’s easier to correct now than later, and leaving it would either make Phase 2 longer and harder or take an option off the table. A narrow upper jaw with a back crossbite is the clearest example. So is a front crossbite where the lower jaw is growing ahead of the upper. So is a canine or incisor with no path to erupt. Removing a baby tooth on schedule, or opening a little space, can let that tooth come in on its own instead of needing surgery later.
What Phase 1 is not
It isn’t a way to skip braces as a teenager. This is the misunderstanding I correct most often. Phase 1 fixes a specific problem; it doesn’t align all the adult teeth, because most of them aren’t in yet. Nearly every child who does Phase 1 still does Phase 2. What changes is that Phase 2 is usually shorter, more predictable, and less likely to involve extractions than it would have been. If anyone tells you early treatment means no braces later, be skeptical.
Seeing a problem doesn’t mean treating it now, either. Crowded front teeth at 7 are common and often resolve or become a straightforward Phase 2 correction. Mild crowding, a slightly deep bite, spacing between the front teeth: these get watched, not treated. Starting early when the outcome would be the same starting later adds months of appointments and cost without improving the result. I’d rather say that at the consultation than put an appliance in a mouth that didn’t need one.
When waiting is the right call
Sometimes the exam shows a real problem and the right answer is still “not yet.” A lower jaw that’s growing too far forward, for example, is often best addressed once growth is nearly complete, because treating it earlier can mean treating it twice. In those cases the plan is close monitoring with a specific trigger: we start when a particular tooth erupts, or when a growth measurement crosses a line. You’ll know what the trigger is, so the wait has a purpose rather than a feeling of being put off.
What’s Different About Doing This at VO
Any orthodontist can do a 7-year-old exam, and most will do it free. What varies is who’s reading the records, what they’re reading for, and what they have to gain from the answer.
At Varble Orthodontics, I do the exam and I read the X-ray and scan myself. There’s no treatment coordinator presenting a plan I haven’t looked at. That matters more at 7 than at any other age, because the whole visit is judgment. There’s no crooked tooth to point at. The recommendation comes down to how someone reads a growing jaw, and I’d rather that someone be the person who’ll be responsible for the result.
I also don’t have anyone to answer to on that recommendation. This is a private practice with no corporate parent, which means nobody sets a target for how many 7-year-olds start treatment this quarter. When I tell you “nothing yet,” it’s because that’s what the records show. The most common way an early exam goes wrong is a practice that treats “come back in a year” as a lost opportunity. I treat it as the correct answer most of the time.
The other thing I bring to a first exam is what I spend the rest of my week doing. I’m a clinical professor in the orthodontic residency at Saint Louis University, where I teach orthodontists in training how to diagnose and plan cases like your child’s. I also teach practice management to dental students at Southern Illinois University. Reading a mixed-dentition X-ray for eruption problems is something I explain to residents regularly. You get the same explanation, in plainer words. My full background is on my bio page.
Last, I’m looking at more than teeth. The VO Smile philosophy is our standard for a finished result: a broad, full smile that fits the face, with attention to how the lips, gums, and teeth work together. At 7, that means I’m already reading the face in profile and from the front and thinking about how the jaw needs to grow for that result to be possible later. The exam at 7 is where planning for that result starts, and straight teeth on a narrow arch wouldn’t get us there.
Common Questions Parents Ask
Isn’t 7 too young for braces?
Yes, and that’s the point. Almost no 7-year-old gets braces. The visit at 7 is an exam, and the usual result is a plan to watch growth. Braces, when they’re needed, typically come in the early teens once the adult teeth are in.
My child is 9. Did we miss the window?
No. An early orthodontic evaluation at 9 or 10 still gives me most of what I’d see at 7, and there’s growth left to work with. Some corrections get harder as a child gets older, especially widening the upper jaw, which is why I’d rather see a 9-year-old this month than next year. Come in.
Do we need a referral from our dentist?
No. Many of our families come from their pediatric dentist, and we share a building with Dentistry for Children and Adolescents, so that handoff is easy. But you can book the exam directly. If something about your child’s teeth or bite looks off to you, that’s reason enough.
If we do Phase 1, will my child still need braces as a teenager?
Usually, yes. Phase 1 corrects one problem while the jaw is growing; it doesn’t align the adult teeth, because most haven’t come in yet. What it does is make the second round shorter and more predictable. Our complete guide to braces covers what that second round looks like.
What does the exam cost?
Nothing. The VO Smile Assessment is free and includes the X-ray, photos, 3D scan, and my written recommendation.
Getting Started
If your child is 7 or older and hasn’t had an orthodontic evaluation, book the free VO Smile Assessment. You’ll leave with the X-ray and scan read in front of you, a plain answer about where your child stands, and a plan for what happens next, even when that plan is a recheck in a year.
We see kids from across the St. Louis area at our Creve Coeur and St. Peters offices; pick whichever is closer to your school-and-activities route. Bring your questions, and bring the child. Most of them end up wanting to see their own teeth on the screen.
