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A crossbite happens when some of the upper teeth sit inside the lower teeth when the mouth closes. How it gets corrected depends on the type of crossbite, the patient’s age, and whether the problem comes from tooth position or from the jaw itself. Those three variables decide whether the answer is a palatal expander, braces, clear aligner therapy, a growth-modification appliance, or, in a small number of adult cases, jaw surgery. At Wendling Orthodontics, we have treated crossbites across every age group since 1998, and one of our three orthodontists, Dr. Lisa K. Wendling, Dr. Jessica Perry, or Dr. Nolan Wendling, personally evaluates every patient to match the treatment to the specific bite. That evaluation is the real starting point, because two crossbites that look alike in the mirror can call for very different treatment underneath. What is a crossbite? A crossbite is a type of malocclusion, which simply means the upper and lower teeth do not meet the way they should. In a normal bite, the upper teeth rest slightly outside the lower teeth. In a crossbite, one or more upper teeth close inside the lower teeth instead. A crossbite can involve a single tooth or several teeth, and it can show up on one side of the mouth (unilateral) or both (bilateral). It is different from an overbite, which is a vertical overlap of the front teeth, and from an underbite, where the lower front teeth sit ahead of the uppers. You can read more about how crossbites are classified through the American Association of Orthodontists. Anterior vs. posterior crossbite Crossbites usually fall into two main categories, and the difference matters because each points toward different treatment. Crossbite type What happens Common signs Anterior One or more upper front teeth close behind the lower front teeth When all of the upper front teeth sit behind the lowers, people often call it an underbite Posterior The upper back teeth bite inside the lower back teeth One of the more common bite problems seen in growing children Some patients have elements of both. Posterior crossbites also deserve a closer look, because what appears to be a one-sided crossbite can sometimes be a narrowing of the whole upper jaw, with the lower jaw shifting to one side to find a comfortable bite. Sorting that out is part of the evaluation. Dental vs. skeletal crossbite and why it drives treatment More than anything else, the right treatment depends on whether a crossbite is dental or skeletal. This matters because braces and clear aligners move teeth, but they do not widen or reposition the jawbone the way an expander or, in severe adult cases, surgery can. A dental crossbite can often be corrected by moving teeth. A skeletal crossbite usually needs an appliance or approach that changes the jaw structure, frequently followed by braces or aligners to finish the alignment. What causes a crossbite? Crossbites often come from a mix of inherited jaw shape and early childhood habits. Commonly cited contributors include: Not every habit leads to a crossbite, and many crossbites trace back to jaw development rather than any single cause. The MedlinePlus overview of malocclusion covers these contributors in more detail. Why timely crossbite correction matters Left uncorrected, a crossbite can contribute to uneven tooth wear, strain on the jaw and muscles, gum problems, and, in growing children, asymmetric jaw development. That said, this is not a reason to panic. The goal is timely evaluation, not rushed treatment. Correction is often more straightforward while a child’s jaw is still developing, which is one reason the American Association of Orthodontists recommends a first orthodontic checkup by age 7. An early visit does not mean early treatment. In many cases the right call is to monitor a child’s growth and start later, or to find that no treatment is needed at all. It is also worth knowing that some childhood crossbites can improve on their own as the permanent teeth come in. How often that happens is unpredictable, which is exactly why an evaluation is more useful than either ignoring the problem or over-treating it. Crossbite treatment options by age and type There is no single fix for a crossbite. The options below are matched to age, crossbite type, and whether the problem is dental or skeletal. In our experience, most treatment plans use one of these, and skeletal cases sometimes use two in sequence. Treatment What it addresses Typically used for Common age range Palatal expander (RPE) A narrow upper jaw (skeletal) Posterior crossbites tied to a narrow maxilla Growing children and young teens Braces Tooth position (dental) Dental crossbites and the alignment phase after jaw correction Children, teens, and adults Clear aligner therapy Tooth position (dental), mild to moderate Selected dental crossbites Teens and adults Reverse-pull facemask Jaw growth (skeletal) Certain anterior crossbites and underbite patterns Growing children Jaw surgery Jaw structure (severe skeletal) Severe skeletal crossbites after growth is complete Adults Palatal expanders for a narrow upper jaw A palatal expander, including the rapid palatal expander (RPE), gently widens a narrow upper jaw. It is most commonly used in growing children and young teens, whose jaws are still developing and respond well to expansion. For a posterior crossbite caused by a narrow maxilla, an expander is often the first step, followed by braces or aligners to align the teeth once there is enough width. The Cleveland Clinic’s palate expander guide explains the mechanics and typical timelines. Expanders are a core part of our early orthodontic treatment for younger patients. Braces for dental crossbites Braces are the most versatile crossbite treatment because they can move teeth in children, teens, and adults. They are especially useful for dental crossbites, where the jaw size is fine and the issue is tooth position. Braces also handle the alignment phase that often follows skeletal correction like expansion. You can learn more about our braces options and how they work. Clear aligner therapy for mild to moderate crossbites For selected mild to moderate dental

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Plenty of adults in the Flint and Grand Blanc area assume orthodontic treatment is something you only do as a kid. It isn’t. Straightening your teeth as an adult is common, effective, and rarely too late. At Wendling Orthodontics, about a quarter of the patients we treat are adults, and we have been a clear aligner provider since 2000. Most adults choose between clear aligners and traditional braces, finish in roughly 12 to 24 months depending on the case, and fit treatment around a full work and family schedule. This guide answers the questions adults actually ask before they book: whether it’s too late, how clear aligners and braces compare, how long treatment usually takes, what it involves financially, and what to expect as a working adult. We see these conversations every week across our Flint and Grand Blanc offices, so the goal here is honest information, not a sales pitch. Is It Too Late to Get Braces or Invisalign as an Adult? For most healthy adults, no. Teeth with sound roots and healthy gums can be moved at almost any age, and the number of adults choosing treatment keeps climbing. According to the American Association of Orthodontists, about one in three orthodontic patients is now an adult over the age of 18. The growth is steady, not a blip. AAO member orthodontists treated an estimated 1.91 million adult patients in 2024, up from 1.64 million just two years earlier. A lot of that comes down to clear aligners being nearly invisible and the old stigma around adult braces fading. If you have been quietly wondering whether you missed your window, you almost certainly haven’t. Why More Adults in the Flint Area Straighten Their Teeth Adults come to us for different reasons than kids do. Teenagers are usually here because a parent brought them. Adults are here because they decided, often after years of thinking about it. A few patterns come up again and again. Confidence at work and in social settings The most common driver is appearance. In published patient surveys, roughly 7 in 10 adults cite how their smile looks as the main reason they pursue treatment. For working adults in public-facing roles, that often ties directly to confidence in meetings, presentations, and everyday interactions. Oral health and function Straighter teeth are easier to keep clean. Severely crowded teeth create tight spots that resist brushing and flossing, which over time can contribute to gum problems and uneven wear on the enamel. Correcting alignment removes those traps and makes daily hygiene more effective. For some adults, a general dentist or periodontist actually recommends orthodontics first, to create space for a crown or implant. Correcting teeth that shifted after teenage treatment A large group of our adult patients had braces years ago and watched their teeth slowly drift back, usually the lower front teeth. This happens for two reasons. If retainers aren’t worn consistently, the fibers around the roots gradually pull teeth toward their old positions. On top of that, teeth naturally tend to migrate forward over a lifetime, which crowds the front teeth as space runs out. Clear aligners are often a straightforward way to fix this kind of relapse. Your Treatment Options: Clear Aligners vs. Braces Almost every adult decision comes down to two paths: clear aligner therapy or traditional braces. Both work. The right choice depends on the complexity of your case, your daily routine, and how you feel about the trade-offs. Each option deserves a real look, so we cover them separately below, then side by side. Clear aligners (Invisalign and other clear aligners) Clear aligners are a series of custom, transparent trays that move your teeth in small, planned steps. For adults, the appeal is usually that they are nearly invisible and fully removable. You take them out to eat, drink anything other than water, brush, and floss, which means no dietary restrictions and normal oral hygiene. With no brackets or wires, many adults also find them comfortable against the cheeks and lips. The trade-off is discipline. Aligners only work if you wear them 20 to 22 hours a day. Take them out too often for long lunches or meetings and your treatment quietly stretches longer than planned. The schedule tends to suit busy adults, though. We typically see clear aligner patients about every 12 weeks, which is easier to fit around a job than more frequent visits. We have been an Invisalign provider since 2000 and are one of the area’s top providers, so we have guided a lot of adults through this exact decision. You can read more on our clear aligner page. Traditional and ceramic braces Traditional braces use brackets bonded to the teeth and a wire that applies steady, continuous pressure. Because they are fixed in place, braces work around the clock without depending on your willpower. That makes them dependable for complex cases, and for anyone who knows they would struggle to wear trays consistently. The main concern adults raise is appearance. Tooth-colored ceramic brackets are a discreet alternative to metal and handle much of that worry. Braces do come with dietary limits, since hard, sticky, and chewy foods can damage brackets, and they ask for careful cleaning around the hardware. We usually see braces patients about every 8 weeks for adjustments. Clear aligners vs. braces at a glance Factor Clear aligners Traditional / ceramic braces Appearance Nearly invisible Visible with metal; ceramic is discreet Removable Yes, for eating and cleaning No, fixed for the full treatment Dietary restrictions None Avoid hard, sticky, and chewy foods Daily responsibility Must wear 20 to 22 hours a day Built in, no daily willpower needed Typical visit frequency (our practice) About every 12 weeks About every 8 weeks Often best suited for Mild to moderate cases, relapse, busy schedules Complex bites and movements; low compliance worries Our typical timeline About 12 to 20 months About 12 to 24 months Timelines and visit frequencies above are the ranges we see most often. Every