Open Bite: What It Is, Why It Happens, and How to Treat It
Open bite What it is, why it happens, and how to treat it
If you’ve noticed that your teeth don’t meet when you bite down, or that there’s a visible gap between your top and bottom teeth, you may have what dentists call an open bite. This condition can affect more than just your appearance—it can impact your speech, chewing, and even your jaw health.
At Spa Dental Clinic, we help patients of all ages correct open bite issues using modern and effective treatments such as Invisalign. In this article, we’ll explain what an open bite is, what causes it, how it’s diagnosed, and how it can be treated—clearly and without jargon.
What is an open bite?
An open bite is a type of malocclusion, which means the teeth do not align properly when the mouth is closed. Instead of the upper and lower teeth fitting together evenly, there’s a visible gap—either at the front or back of the mouth.
There are two main types:
– Anterior open bite: This affects the front teeth—the upper and lower front teeth don’t touch when you close your mouth.
– Posterior open bite: This affects the back teeth—the back teeth do not meet when the front teeth are closed together.
You can find more clinical detail on the Wikipedia page about open bite malocclusion.
What causes an open bite?
There isn’t just one cause. Open bite teeth can result from a combination of habits, genetics, or developmental issues. Some common causes include:
– Thumb sucking or dummy use beyond early childhood
– Tongue thrusting (pushing the tongue against the front teeth when swallowing)
– Mouth breathing due to allergies or nasal issues
– Jawbone growth patterns, often inherited
– Missing or misaligned teeth
– Temporomandibular joint (TMJ) disorders
The Colgate guide to open bite provides a helpful overview of early signs and causes.
Why an open bite needs to be treated
An open bite is not just a cosmetic issue. Left untreated, it can cause:
– Speech difficulties (especially with “s” or “z” sounds)
– Problems chewing food effectively
– Tooth wear due to uneven pressure
– Jaw pain or strain from poor alignment
– Lower self-confidence in some patients due to appearance
At Spa Dental Clinic, we offer personalised consultations to determine if treatment is right for you or your child.
How is an open bite diagnosed?
Diagnosis is usually straightforward. Your dentist or orthodontist will:
1. Examine how your teeth come together when you bite
2. Take dental X-rays or 3D scans to assess bone and tooth positions
3. Review habits, medical history, and any symptoms (e.g. speech or jaw pain)
We always recommend early assessment, especially in children, as early treatment can reduce the need for more complex solutions later.
Treatment options for open bite
Treating an open bite depends on the severity of the issue, the patient’s age, and whether the problem is caused by habits, tooth position, or jaw alignment. The main treatments include:
1. Behavioural intervention (for children)
For younger patients, stopping habits like thumb sucking or tongue thrusting can help resolve a developing open bite before orthodontic treatment is needed.
2. Braces or clear aligners
Orthodontic treatment is the most common and effective solution. It works by gradually moving the teeth into better alignment.
Invisalign for Open Bite
Invisalign is a popular choice for treating mild to moderate open bites. The clear aligners are comfortable, removable, and almost invisible.
They can help with:
✔ Anterior open bite correction by adjusting the front teeth
✔ Posterior open bite treatment by guiding back teeth into better contact
✔ Habit correction when used with tongue training exercises or myofunctional therapy
Learn more about Invisalign for open bite and whether it’s right for you.
At Spa Dental Clinic, we offer custom Invisalign plans for both teens and adults.
3. Orthognathic surgery (for severe cases)
In adults with severe open bites due to skeletal issues, jaw surgery may be required. This is usually paired with braces or aligners for full correction.
How invisalign works for open bite treatment
With Invisalign, you’ll receive a series of custom-made aligners that gradually move your teeth. Each set is worn for about two weeks before switching to the next one.
Treatment usually takes 6–18 months, depending on complexity. Many patients prefer Invisalign because:
✔ It’s discreet
✔ It’s removable (easy to eat, brush, and floss)
✔ There are fewer check-ups than with fixed braces
✔ It can treat anterior open bite and posterior open bite in many cases
For more technical detail, Healthline provides a guide on open bite treatment and how aligners may help.
Can open bite teeth relapse after treatment?
Relapse can happen if retainers are not worn as advised. After any orthodontic treatment, you’ll need to wear retainers—either fixed or removable—to maintain your new smile.
At Spa Dental Clinic, we provide retainers as part of your Invisalign treatment plan and offer ongoing support to ensure long-term results.
Ready to feel more confident in your smile?
An open bite can affect more than just your smile. Whether you’re dealing with speech issues, trouble chewing, or feeling self-conscious, it’s worth speaking to a professional. Treatments today are more comfortable and discreet than ever, and Invisalign is leading the way in transforming open bite teeth without the need for metal braces.
If you’re concerned about your bite or looking for an expert opinion, get in touch with the team at Spa Dental Clinic. We offer a friendly, professional approach to orthodontics and cosmetic care, including full Invisalign treatment plans tailored to your needs.