Overbite Explained: Causes, Symptoms & How to Fix It
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Overbite Explained: Causes, Symptoms & How to Fix It

July 11, 2025

Let’s talk about overbites. Most people think of them as just a cosmetic issue, but there is actually a lot more going on behind the scenes. An overbite can affect the way your teeth line up, how you chew, and even how your jaw feels day to day. So if you have ever found yourself wondering, “Is an overbite bad?” you are definitely not alone. 

When your overbite teeth start to cause discomfort or change the way you bite, it might be a sign of something deeper. Some overbite symptoms are easy to spot (like your top teeth covering too much of the bottom ones) while others like jaw tension or speech issues are a little sneakier. That is why catching it early really helps. We believe that every smile has a story, and part of that is understanding what your teeth might be trying to tell you. And we are here to help you get the facts and the smile you deserve.

Understanding Overbite: What It Is and How It Looks

So, what exactly is an overbite? It is when your upper front teeth stick out too far over your lower teeth. A little bit of overlap is totally normal. In fact, most people have some. But when the top teeth cover too much of the bottom ones, that is when it becomes something to pay attention to. If you are wondering what it actually looks like, imagine smiling and noticing that your top teeth hide most of the bottom ones. That is called a deep bite, which is a type of overbite. A normal bite, on the other hand, has a slight, natural overlap that does not block your bottom teeth from view.

You might also hear the term Class 2 Overbite floating around. This is just a way dentists describe a more noticeable overbite, where the upper jaw is positioned quite a bit ahead of the lower jaw (think of it like a handy label to explain how your teeth are lining up.)

What Causes an Overbite?

Ever wondered what causes an overbite in the first place? The truth is, it can come from a mix of things, some you are born with, and others that show up as habits when you are growing up.

Some common causes include:

  • Genetic factors: Your jaw shape or tooth size might run in the family. Skeletal growth patterns inherited from parents can influence how teeth and jaws align.

  • Thumb sucking or pacifier use beyond age 3 or 4: These habits apply pressure to the upper front teeth and palate, leading to increased overjet and jaw misalignment. Prolonged habits are linked to Class II malocclusion and excessive overjet.

  • Mouth breathing: Chronic mouth breathing can pull facial muscles and jaw bones out of balance. It is significantly associated with increased overjet and other malocclusions.

  • Tongue thrusting or atypical swallowing: When the tongue pushes forward during swallowing, it can shift the teeth outward and alter bite alignment.

  • Jaw growth imbalance: If the upper jaw grows faster or less than the lower jaw, it can result in misalignment and a pronounced overbite.

Most overbites start developing in childhood, which is why early habits matter. But just because it starts young does not mean adults are off the hook. An untreated overbite can continue to shift over time. And yes, it can still affect you as an adult.

Signs and Symptoms of an Overbite

Let us walk through common overbite symptoms, from what you can easily see to the things that hide in plain sight. Knowing these signs can help you spot issues early on and get the care you deserve.

Visible Signs

  • Noticeable overlap: One of the clearest signs of an overbite is when your upper front teeth sit too far over your lower front teeth. A little overlap (usually 1 to 2 millimeters) is totally normal. But when your top teeth cover more than one-third of your bottom teeth, especially when you bite down, that is often a red flag. This can make your teeth look “tucked in,” and in photos, it might look like your lower teeth are barely there. Some people also feel like their chin is pushed back a bit or that their smile looks slightly unbalanced.

  • Lips not closing naturally: Do your lips feel like they have to work to stay shut? That gentle lip seal when you are at rest should feel relaxed, no effort needed. But if your overbite is more severe, your upper teeth might push your lips forward just enough to make closing them feel strained or unnatural. Over time, this can even lead to dry lips, mouth breathing, or changes in your face’s resting posture, especially noticeable in kids as their facial features develop.

Subtle or Less Obvious Symptoms

  • Jaw pain or clicking: When your bite is off, your jaw joint (called the TMJ) has to work harder to keep things aligned, and that stress adds up. You might notice tightness around the jaw, soreness that shows up by the end of the day, or even a clicking or popping sound when you chew or open wide. Left unchecked, this can lead to TMJ disorder, which may cause chronic jaw pain, headaches, or even neck tension. So if your jaw feels off, it is worth a closer look.

  • Speech challenges: An overbite can affect the way your tongue and lips move when you talk, especially if the teeth are significantly misaligned. You might notice a lisp or difficulty pronouncing “s,” “z,” “sh,” or “ch” sounds clearly. This is more common in kids, but adults can experience this too, especially if the overbite has been untreated for years. It is one of those things you may not even notice until someone points it out or you hear a recording of yourself.

  • Uneven tooth wear or damage: Your teeth are designed to fit together like puzzle pieces. So when that alignment is off, certain teeth end up taking more pressure than they should. This can lead to: worn-down tooth edges, chipped or cracked teeth, tooth sensitivity. People with overbites might grind their teeth without realizing it, especially at night. This not only affects your enamel but can also lead to cavities or long-term tooth damage.
  • Chewing or biting issues: If you find it tough to bite into foods like sandwiches, apples, or pizza slices, or if chewing takes more effort than it should, an overbite might be playing a role. This happens because the teeth are not making proper contact, so your jaw muscles have to compensate. That can lead to uneven chewing, jaw fatigue, or even indigestion if food is not broken down properly.

At a Glance: Overbite Symptoms Table

Symptom Type What It Means
Visible overlap Top teeth cover too much of the bottom ones
Difficulty closing lips Lips stretch to meet when mouth is closed
Jaw pain or clicking TMJ may be strained from misalignment
Speech issues Lisping or trouble with certain sounds
Tooth wear or damage Uneven chewing creates wear, chips, sensitivity
Chewing difficulty Misalignment affects bite or digestion

If any of these overbite symptoms feel familiar, it might be time to check in with a dental professional, especially since some symptoms, like jaw discomfort or speech changes, can sneak up on you. Addressing these early can help keep your smile healthy, comfortable, and confident.

Is an Overbite Bad? Here’s What It Can Lead To

If you have been wondering whether an overbite is just a small dental quirk or something more serious, here is the truth: while not every overbite is a problem, leaving a more severe one untreated can lead to bigger issues over time. Even if you are not feeling any pain now, your teeth and jaw are constantly at work. When they are not lining up the way they should, that stress builds up. Not just in your mouth, but in other areas too. Here is what an untreated overbite can turn into down the line:

1. Chronic muscle tension and fatigue

An imbalanced bite can cause strain in your jaw muscles, which may lead to tightness in your face, neck, or even shoulders. Over time, this can trigger tension headaches, especially if you grind your teeth or clench your jaw.

2. Sleep disturbances

Overbites are sometimes linked with airway issues, especially when the lower jaw is set too far back. This can reduce airflow during sleep, leading to snoring or contributing to sleep apnea in some cases. Poor sleep can affect everything from your mood to your focus.

3. Facial development issues (in kids)

In children, a strong overbite can affect how the jaw and face develop. It might change the shape of the lower face, create asymmetry, or lead to a recessed chin. Catching and correcting it early can actually help guide the face into a more natural, balanced shape as they grow.

4. Self-consciousness or confidence dips

Let’s be real. Your smile plays a huge part in how you show up in the world. If your overbite makes you feel awkward about your appearance, or it is affecting how you talk or eat, that discomfort can slowly chip away at your confidence.

5. More complex dental work later

When left alone, overbites can contribute to wear, misalignment, or crowding that may eventually require more intense (and expensive) dental treatments like veneers, crowns, jaw surgery, or even tooth extractions. Getting it sorted sooner can help you avoid that snowball effect.

So, is an overbite bad? Not always. But it is definitely something worth keeping an eye on. Think of it like a small crack in a wall: easy to fix now, but if you ignore it for too long, it might need a full rebuild later. If anything here sounds familiar, a quick chat with your dentist or ortho could make all the difference.

Does an Overbite Affect Your Jawline or Facial Appearance?

Yes, an overbite can definitely affect the way your jawline and face look, especially when it goes untreated into adulthood. While every smile is unique (and beauty is never one-size-fits-all), understanding how an overbite can shape your features can help you make more informed choices about your dental health.

How an Overbite Impacts Facial Aesthetics

  • Jawline definition: When your upper teeth and jaw sit too far forward, your lower jaw can look smaller or pushed back. This might make the jawline appear softer or less defined, especially in profile.

  • Chin position: A deep overbite often makes the chin look recessed, even if your jaw is actually normal in size. This can throw off facial balance and make your lower face appear shorter.

  • Lip posture and smile: People with more pronounced overbites may find that their upper lip sticks out slightly or does not close comfortably without effort. That subtle shift can change your resting facial expression and even affect how your smile photographs.

Myth vs. Fact: Overbite & Attractiveness

Myth: Overbites are always unattractive.
Fact: Not true! Plenty of people have minor overbites and still have great-looking smiles. What matters most is overall facial harmony, comfort, and confidence. A slight overbite is common, and can even go unnoticed by others.

Myth: Fixing an overbite is only about looks.
Fact: While aesthetics are part of it, correcting an overbite can also help with functions like breathing, chewing, and reducing jaw pain. The benefits go way beyond the mirror.

Myth: Overbite treatment is only for kids.
Fact: Nope. Overbite in adulthood is common, and it is never too late to make changes. Adults can absolutely benefit from treatment, whether that is clear aligners, braces, or more advanced options if needed.

So, does an overbite affect jawline and appearance? It definitely can, especially when it shifts the balance of your profile or creates strain in your jaw. But what matters most is how you feel about your smile. And if your overbite is holding you back in any way, there are options out there to help.

Treatment Options for Fixing an Overbite

Good news: overbites are treatable. And the sooner you start, the easier it usually is. The best treatment really depends on how severe the overbite is, your age, and whether it’s caused by your teeth, your jaw, or both. Here are the most common ways people fix an overbite, from the least invasive to the more advanced:

Clear Aligners

Perfect for mild to moderate cases, clear aligners are a popular choice if you are looking for something that blends into your daily life.

  • ZenyumClear™: Great for aesthetic alignment and minor bite adjustments. These work well if your overbite is mostly caused by your teeth, not your jaw.
  • ZenyumClear™ Plus: A more advanced solution that tackles moderate overbites with greater control and precision. Ideal if you need a bit more movement but still want a nearly invisible option.
  • ZenyumClear™ Extra: Designed for mild to moderate cases that are more complex, especially if your treatment involves full arch movement, attachments on most teeth, or possible extractions. It offers a higher level of control for those who need a bit more than what regular aligners can do while still keeping things clear and low-key.

Aligners are discreet, removable, and make daily life easier especially if you want to avoid metal brackets.

Braces

Braces are still one of the most effective ways to correct a severe overbite especially when the teeth need to move a lot or the bite is deeply off.

  • Traditional braces: Best for complex cases, they give orthodontists full control over how teeth shift. Great if you are dealing with a severe overbite or crowding.

  • Invisible (ceramic or lingual) braces: These offer a more subtle look while still delivering strong results. A good middle ground for adults who want something more discreet.

If you're wondering how long do braces take to fix an overbite, the answer usually depends on the case. But for moderate to severe overbites, it typically ranges from 12 to 30 months.

Surgery (For Skeletal Overbites)

In rare cases where the overbite is caused by jaw bone structure, braces or aligners might not be enough. This is when orthognathic surgery may be recommended, often paired with braces or aligners before and after. This is usually reserved for severe skeletal cases where the jaw itself needs to be repositioned to correct the bite and balance the face. While it is more intensive, it can offer dramatic, life-changing results for people with serious misalignment.

Can You Get Rid of an Overbite Naturally?

People often ask, “how to get rid of an overbite naturally?” And while that would be ideal, the truth is: natural methods only help in very mild cases, and only if caught early.

For Children:

In kids, early habits can play a big role. Simple changes like encouraging nasal breathing, correcting tongue posture, or stopping thumb sucking early on can help prevent bite problems from developing.

For Adults:

Some gentle approaches like myofunctional therapy (which retrains the tongue and facial muscles) may help support treatment, but they are not a standalone fix for moderate or severe overbites. So while good oral habits are always helpful, most overbites do not go away on their own. If you notice signs like teeth overlap, jaw discomfort, or trouble chewing, it is important to see a dentist or orthodontist to understand your options.

How Long Do Braces Take to Fix an Overbite?

Let’s break it down: how long do braces take to fix an overbite? The answer depends on a few key things like how severe the overbite is, how old you are, and what kind of treatment you go with.

Average Treatment Times

Here is a general idea of how long treatment usually takes:

Overbite Severity Average Treatment Time
Mild 6–12 months
Moderate 12–18 months
Severe 18–30+ months

The earlier you start, the faster and easier the treatment tends to be. Teens often respond quicker to braces since their jaws are still developing. For adults, especially with a severe overbite, treatment might take a bit longer. But the results are absolutely worth it.

Braces & Clear Aligners: What’s Best for You?

Not all overbites need the same approach. Here is how different treatment types compare:

ZenyumClear (Mild Cases)

  • Treatment time: Around 6 to 9 months

  • Great for: Aesthetic alignment and light overbite correction

Why it works: Moves teeth gently over time with almost invisible trays

ZenyumClear Plus (Mild to Moderate Cases)

  • Treatment time: 9 to 15 months

  • Great for: Overbite teeth that need more control and bite correction

  • Why it works: Uses attachments and remote monitoring for more precise movements


ZenyumClear™ Extra (Mild to Moderate, More Complex Cases)

  • Treatment time: Around 15 months

  • Great for: Full-mouth movement, including cases that may need extractions

  • Why it works: Involves movement of all teeth, attachments on most teeth, and extraction planning when necessary. Designed for patients who need more comprehensive correction but still want the convenience and clarity of aligners.

Traditional Braces (Moderate to Severe Overbite)

  • Treatment time: 18 to 30+ months

  • Great for: Complex overbites or major jaw alignment

  • Why it works: Brackets and wires allow full control over each tooth’s movement

Invisible Braces (e.g., ceramic or lingual)

  • Treatment time: Usually similar to traditional braces

  • Great for: Adults or teens who want a less visible option for a braces for severe overbite case

  • Why it works: Same strength and control, but with a more discreet look

So, how long do braces take to fix an overbite? It all comes down to your smile's unique story. Whether you need a little fine-tuning or a bigger realignment, there is a solution that can fit your lifestyle, and we are here to help you find it.

Class 2 Overbite: Is It Bad?

If you have heard your dentist mention a “Class 2 bite” or “Class 2 overbite,” you might be wondering what it really means, and if it is something you should worry about. Let’s break it down in a way that is simple, practical, and helpful.

What Does a Class 2 Bite Look Like?

A Class 2 overbite happens when the upper teeth and jaw sit too far forward compared to the lower teeth and jaw. From the side, it may look like the top teeth are “jutting out,” while the lower jaw seems tucked back or small. People with Class 2 bites often have:

  • A deep overbite where the top front teeth cover most of the lower teeth

  • A smaller or receding chin

  • A softer, less defined jawline in profile

  • Trouble fully closing the lips without effort

This type of bite is usually more noticeable in profile photos or side views, and can affect both how your face looks and how your bite functions.

What Causes Class 2 Bites?

Wondering what causes an overbite like this? It usually comes down to a mix of genetics and early habits. Common causes include:

  • Jaw growth imbalance: The upper jaw grows faster or the lower jaw develops more slowly

  • Genetics: A Class 2 bite can run in families and often starts in childhood

  • Prolonged thumb sucking or pacifier use: These habits can shift the position of teeth and affect how the jaw grows

  • Mouth breathing or tongue posture issues: These can also influence how the jaws form over time


How Do You Treat a Class 2 Overbite?

The good news is that a Class 2 overbite can be treated, and there are a few different ways to go about it depending on your age and how severe the bite is.

For teens and adults:

  • Braces: Traditional braces are the go-to for Class 2 overbite correction, especially if tooth and jaw movement are both needed.

  • Clear aligners (like ZenyumClear Plus): Can help with mild-to-moderate Class 2 bites where the problem is mostly dental (not skeletal).

  • Elastics: Often used with braces or aligners to help guide the jaw into better alignment.

  • Jaw surgery: For severe cases caused by jaw structure, surgery may be needed to reposition the jaw.

How Long Does It Take to Fix a Class 2 Bite?

  • Mild cases: Around 12–18 months with aligners or braces

  • Moderate cases: 18–24 months, possibly with elastics or attachments

  • Severe skeletal cases: May require 24–36+ months, including surgery and post-op orthodontics

Your orthodontist or dental provider will create a personalized plan, depending on how your jaw and teeth are aligned and how much correction is needed. A Class 2 overbite is not bad in every case, but if it is affecting how you eat, speak, or feel about your appearance, it is definitely worth looking into. The earlier you catch it, the easier (and usually faster) it is to fix.

Read more: Transforming your smile: how braces can fix an overbite

Got an Overbite? Here’s What to Do Next

If you have made it this far, you are probably thinking: “Okay… I might have an overbite. Now what?” Here is a simple plan to get started, no pressure, no complicated steps:

Read more: Your Ultimate Guide To Zenyum’s Free Smile Assessment

Step 1: Take Zenyum’s Free Smile Check

Snap a few photos, send them in, and let our system check if ZenyumClear™, ZenyumClear™ Plus, or ZenyumClear™ Extra might be a fit for your case. It is 100% free, and only takes a few minutes.


Step 2: Talk to a Zenyum Partner Dentist

If you are a match, we will connect you with one of our trusted partner dentists. They will examine your teeth and bite, confirm your suitability, and answer any questions you have about your overbite or treatment options.

Step 3: Get Your Personalised Treatment Plan

Your journey is unique, so your treatment should be too. If approved, you will receive a personalised Zenyum plan, complete with your expected results, timeline, and pricing. All explained clearly, with support every step of the way. No guesswork. No stress. Just one step closer to the confident smile you deserve.

FAQs

1. Will an overbite get worse with age?

Yes, it can. Overbites often worsen over time, especially if left untreated. Tooth wear, jaw stress, or habits like grinding can make the bite deeper or more uncomfortable. Addressing it early can prevent future complications.

2. Can you correct an overbite as an adult?

Absolutely. Adults can definitely fix an overbite with aligners, braces, or (in some cases) surgery. It may take slightly longer than in teens, but it is totally doable and very common.

3. Can an overbite be fixed on its own?

Not really. While some mild cases in children may self-correct as baby teeth fall out, most overbites need intervention especially in teens and adults. Without treatment, they usually stay the same or get worse.

4. What happens if you never fix an overbite?

You might be fine for a while, but over time, it could lead to jaw pain, uneven tooth wear, headaches, chewing problems, or speech changes. In some cases, it can also affect your facial appearance.

5. Is it ever too late to fix an overbite?

Nope, it is never too late. While younger patients usually finish faster, adults of all ages can benefit from overbite correction. Many people start treatment in their 30s, 40s, or even 50s with great results.

6. Is it unhealthy to have an overbite?

A minor overbite is normal and often harmless. But if it is deep or causes symptoms (like pain, difficulty chewing, or speech issues), it can affect your dental health and quality of life. In that case, yes, it can be unhealthy.

7. Does fixing an overbite change face shape?

Yes, it can, especially in moderate to severe cases. Fixing the bite often improves jawline definition, facial balance, and profile. It is not about changing who you are, but enhancing your natural symmetry.

8. Can I still be attractive with an overbite?

Of course! Plenty of people with overbites are attractive. What matters is how you feel. If your overbite is affecting your confidence, fixing it might help, but attractiveness is never based on one feature.

9. Does an overbite cause chubby cheeks?

Not directly. But in some cases, a deep overbite can shorten the lower face or push the chin back, which may make the cheeks look fuller. Fixing the bite can sometimes create a more defined facial contour.

10. Will fixing my overbite change my lips?

Yes, but usually in a good way. Many people notice that their lips sit more naturally, close more comfortably, and feel more balanced after treatment. In some cases, a protruding upper lip may become less noticeable.

11. How to tell if your overbite is getting worse?

Watch for these signs:

  • Your upper teeth are covering more of the bottom ones

  • Jaw pain or clicking is increasing

  • Teeth feel more worn down

  • Your lips or chin posture feels different
    If you notice any of these, it is a good idea to check in with a dentist.

12. Does fixing an overbite change your voice?

It can, especially if your overbite is affecting how your tongue moves or how you pronounce certain sounds. Some people find that fixing their bite makes speech clearer or more comfortable, but changes are usually subtle.

13. Is it harder to speak with an overbite?

Sometimes, yes. A noticeable overbite can interfere with sounds like “s,” “z,” or “sh.” It may also cause a slight lisp. This varies from person to person, but it is one of the lesser-known impacts of a deep bite.

14. Will fixing an overbite change your nose?

Your nose itself does not change, but your facial balance might. After correcting an overbite, your profile may appear more aligned, which can slightly affect how the nose looks in proportion to the rest of your face.

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