25 October 2026
When you bite down, your upper and lower teeth should fit together in a coordinated way. However, some people have teeth that sit inside or outside their expected positions, causing the upper and lower teeth to meet incorrectly. This condition is known as a crossbite.
A crossbite can affect a single tooth or several teeth. Depending on its location and severity, it may contribute to uneven tooth wear, gum irritation, jaw discomfort, or difficulties with chewing. Some crossbites cause no obvious symptoms, which means the condition may go unnoticed until a dental examination.
Understanding what causes a crossbite, how dentists identify it, and which treatments may help can make it easier to determine whether your bite needs attention.
At Pacha & Bijan Dental in Maitland, Florida, a dental evaluation can help identify bite alignment concerns and determine whether further assessment or orthodontic treatment may be appropriate.
What Is a Crossbite?
A crossbite is a type of dental malocclusion, meaning the upper and lower teeth do not align as expected when the mouth closes.
In a typical bite, the upper teeth generally sit slightly outside the lower teeth. In a crossbite, one or more upper teeth sit inside the corresponding lower teeth, or vice versa, depending on the location and type of misalignment.
Crossbites can involve the front teeth, the back teeth, or both. They may affect one tooth, several teeth, or an entire section of the dental arch.
There are two main categories:
- Anterior crossbite: Involves the front teeth, where one or more upper front teeth sit behind the lower front teeth when biting together.
- Posterior crossbite: Involves the back teeth, where one or more upper back teeth bite inside the lower back teeth rather than outside them.
The distinction matters because the cause, functional effects, and recommended treatment can vary.
A crossbite is not the same as an overbite or underbite, although these conditions can occur together. An overbite describes the vertical overlap of the front teeth, while an underbite generally refers to a bite in which the lower front teeth extend beyond the upper front teeth. A crossbite describes a specific mismatch in the position of the upper and lower teeth.
What Causes a Crossbite?
Crossbites can develop for several reasons. In many cases, the condition is related to a combination of tooth position, jaw growth, and inherited characteristics.
1. Differences in Jaw Growth
The upper and lower jaws do not always develop at the same rate or in the same proportions.
If the upper jaw is relatively narrow compared with the lower jaw, the upper back teeth may bite inside the lower back teeth. Differences in jaw position can also contribute to certain front-tooth crossbites.
These skeletal factors can influence how the teeth meet and may require more than simple movement of individual teeth to correct.
2. Genetics and Inherited Dental Characteristics
Jaw size, tooth size, and the shape of the dental arches can run in families. If one or both parents have certain bite alignment differences, their children may have an increased likelihood of developing similar characteristics.
Genetics do not determine every aspect of dental development, but inherited factors can contribute to crossbites and other forms of malocclusion.
3. Delayed Loss of Baby Teeth
Baby teeth help guide the development and positioning of permanent teeth. If a baby tooth remains in place longer than expected, it may affect how the permanent tooth erupts.
In some cases, a permanent tooth may emerge in an unusual position, contributing to a crossbite. A dentist can evaluate whether a retained baby tooth or another eruption issue is affecting alignment.
4. Crowding and Limited Space
When the dental arch does not provide enough room for all the teeth, some teeth may erupt in rotated or displaced positions.
Crowding can contribute to a crossbite when one or more teeth emerge on the wrong side of the opposing teeth. However, not every crossbite is caused by crowding, and creating additional space alone may not correct the underlying problem.
5. Oral Habits During Childhood
Certain prolonged oral habits, including thumb-sucking or pacifier use, can influence the development of the teeth and jaws in some children.
The effect depends on factors such as the duration, frequency, and intensity of the habit, as well as the child's stage of development. These habits do not automatically cause a crossbite, but they may contribute to changes in dental alignment.
6. Uneven Tooth Eruption
Sometimes, a tooth erupts at an angle or in a position that causes it to meet its opposing tooth incorrectly.
An anterior crossbite, for example, may develop when an upper front tooth erupts behind the lower front teeth. Early assessment can help determine whether the issue is primarily related to tooth position or involves a broader jaw relationship.
What Are the Signs and Symptoms of a Crossbite?
Some people have a crossbite without experiencing pain or noticeable difficulty. Others may develop symptoms related to the way their teeth contact one another.
Common signs include:
- One or more upper teeth sitting inside the lower teeth when biting down.
- Front teeth meeting in an unusual position.
- Uneven contact between the upper and lower teeth.
- Teeth that appear crooked or out of alignment.
- Difficulty biting into or chewing certain foods.
- Uneven tooth wear.
- Gum irritation or recession around teeth exposed to abnormal forces.
- A noticeable shift of the lower jaw to one side when closing the mouth.
Not everyone with a crossbite will experience all these symptoms. Some signs, such as uneven wear or gum changes, can also occur for reasons unrelated to bite alignment.
Jaw discomfort, headaches, and facial pain are not specific to crossbites and should not automatically be attributed to the condition. A dentist can assess the bite and consider other possible causes.
Can a Crossbite Affect Your Oral Health?
The effects of a crossbite depend on the number of teeth involved, the underlying cause, and how the teeth contact one another.
Uneven Tooth Wear
When certain teeth make contact earlier or more forcefully than others, the pressure may be distributed unevenly.
Over time, this can contribute to wear on particular teeth. The degree of risk varies, and not every crossbite causes significant damage.
Gum Irritation and Recession
A tooth positioned outside the normal dental arch may have less favorable support from the surrounding gum and bone, depending on its location and the individual's anatomy.
If abnormal tooth positioning is combined with brushing trauma, inflammation, or thin gum tissue, the risk of localized gum recession may increase.
A dental evaluation can help determine whether the crossbite is affecting the surrounding tissues.
Chewing Difficulties
A crossbite can change how the upper and lower teeth meet during chewing. Some people compensate by shifting their jaw or chewing more heavily on one side.
This does not necessarily mean that every crossbite interferes with eating. The functional impact depends on the severity and location of the misalignment.
Jaw Shifting
Some people with a crossbite move their lower jaw to one side to bring their teeth together more comfortably.
In growing children, a functional shift may influence how the bite develops. Identifying the cause early can help the dentist determine whether intervention is appropriate.
Oral Hygiene Challenges
Misaligned or crowded teeth may be more difficult to clean effectively. Plaque can accumulate in areas that are harder to reach, potentially increasing the risk of tooth decay and gum inflammation.
Correcting a crossbite may improve access for cleaning in some cases, but treatment does not replace regular brushing, flossing, and professional dental care.
How Is a Crossbite Diagnosed?
A dentist can often identify a crossbite during a routine examination, although additional records may be necessary to understand its cause and plan treatment.
1. Examination of the Bite
The dentist observes how the upper and lower teeth meet when the mouth closes. They may ask you to bite down naturally and examine whether the jaw shifts during closure.
The evaluation includes the position of individual teeth, the shape of the dental arches, and the relationship between the upper and lower jaws.
2. Review of Symptoms and Dental History
The dentist may ask whether you experience chewing difficulties, tooth sensitivity, jaw discomfort, or changes in your bite.
For children, the evaluation may include the timing of baby tooth loss, the eruption of permanent teeth, and any persistent oral habits that could influence dental development.
3. Dental Imaging When Appropriate
Dental X-rays or other imaging may be recommended when necessary to assess tooth development, root position, or underlying structures.
Not every crossbite requires imaging. The decision depends on the clinical findings and whether additional information is needed for diagnosis or treatment planning.
4. Referral for Orthodontic Assessment
Some crossbites can be addressed with relatively straightforward tooth movement. Others involve jaw-size differences or more complex alignment issues.
If orthodontic treatment is indicated, the dentist may recommend an assessment by an orthodontist. This helps determine which treatment approach is most appropriate for the patient's age, dental development, and type of crossbite.
What Are the Treatment Options for a Crossbite?
Crossbite treatment aims to improve the relationship between the upper and lower teeth, support oral function, and reduce the risk of problems associated with abnormal tooth contact.
The best option depends on the cause and severity of the crossbite, the patient's age, and whether the issue involves tooth position, jaw development, or both.
1. Braces
Traditional braces use brackets and wires to move teeth into more appropriate positions.
They may be recommended for crossbites involving several teeth, more complex tooth movements, or cases that require detailed control of alignment.
Depending on the situation, orthodontic treatment may involve elastic bands or other components to help correct the relationship between the upper and lower teeth.
Braces are not necessary for every crossbite, and treatment duration varies from patient to patient.
2. Clear Aligners
Clear aligners are removable trays designed to move teeth gradually according to a treatment plan.
They may be suitable for selected crossbites, particularly those caused mainly by tooth positioning. Some cases require attachments, elastics, or other orthodontic aids to achieve the planned movements.
More complex crossbites involving significant jaw discrepancies may not be adequately corrected with aligners alone.
An orthodontic assessment can help determine whether clear aligners are an appropriate option.
3. Palatal Expanders
A palatal expander is an appliance used in selected cases to widen the upper dental arch.
It is often considered for growing children whose upper jaw is too narrow relative to the lower jaw. Expansion may help correct certain posterior crossbites by improving the width relationship between the arches.
The suitability and timing of expansion depend on skeletal development and the nature of the crossbite. It is not an appropriate solution for every patient.
4. Early Orthodontic Treatment for Children
Children's teeth and jaws are still developing, which can create opportunities to address some bite problems before growth is complete.
Early treatment may be recommended when a crossbite is causing a functional jaw shift, affecting eruption, or creating another concern that is best managed during growth.
However, not every crossbite requires immediate orthodontic treatment. Some children benefit from monitoring until more permanent teeth have erupted.
A dental professional can advise on the appropriate timing based on the child's individual development.
5. Tooth-Specific Treatment
In selected cases, a crossbite involving one or a small number of teeth may be managed with targeted orthodontic treatment.
The dentist or orthodontist must first determine whether the tooth can be moved safely into a better position and whether the surrounding bone and gum tissues can support the movement.
Simply reshaping a tooth is not an appropriate solution for every crossbite, particularly when the underlying issue involves jaw alignment or the position of several teeth.
6. Surgical Treatment for Certain Severe Cases
In adults with significant skeletal discrepancies, orthodontic treatment alone may not fully correct the underlying jaw relationship.
In selected cases, corrective jaw surgery combined with orthodontic treatment may be considered. This is generally reserved for more severe problems and requires assessment by an appropriately qualified specialist.
Surgery is not a standard treatment for most crossbites. Many cases can be managed without it.
Is Crossbite Treatment Different for Children and Adults?
Yes. Age and jaw development can influence the available treatment options.
Crossbite Treatment in Children
Children may benefit from early evaluation because their jaws are still growing and their permanent teeth are continuing to erupt.
When a crossbite affects jaw closure or causes a functional shift, early intervention may help guide the bite toward a more favorable relationship.
The appropriate approach depends on the child's development. A dentist may recommend treatment, monitoring, or referral for an orthodontic assessment.
Crossbite Treatment in Adults
Adults can also benefit from orthodontic treatment. Braces and clear aligners may correct many crossbites caused primarily by tooth position.
However, adult jawbones have completed most of their growth. A significant skeletal discrepancy may therefore require a different approach from one used in a growing child.
Treatment planning should account for gum health, bone support, existing restorations, and the overall condition of the teeth.
It is not too late to have a crossbite evaluated in adulthood. The key is determining which treatment can safely and predictably address the specific problem.
What Happens If a Crossbite Is Left Untreated?
A crossbite does not always lead to serious complications, and some cases may only require monitoring. However, leaving a clinically significant crossbite untreated can allow certain problems to continue.
Depending on the individual case, these may include:
- Continued uneven tooth wear.
- Persistent gum irritation around affected teeth.
- Difficulty maintaining oral hygiene in crowded areas.
- Ongoing functional jaw shifting.
- Continued problems with how the teeth meet during chewing.
In children, some crossbites may influence the developing bite, particularly when a functional shift is present.
The potential consequences vary. A dental examination can help establish whether treatment is recommended or whether periodic monitoring is sufficient.
How Can You Help Maintain Your Bite After Treatment?
Correcting a crossbite is only part of maintaining long-term alignment. Teeth can move after orthodontic treatment, so following the recommended retention plan is important.
To support your results:
- Wear your retainer as instructed: Retainers help maintain tooth positions after orthodontic treatment.
- Attend follow-up appointments: Your dentist or orthodontist can monitor your bite and identify changes.
- Maintain good oral hygiene: Brush twice daily with fluoride toothpaste and clean between your teeth daily.
- Address teeth grinding if necessary: Grinding can contribute to tooth wear and may require separate management.
- Report changes promptly: If your bite feels different or your teeth no longer meet as they did after treatment, arrange an assessment.
Retainers do not correct every underlying jaw problem, but they are an important part of maintaining the results of many orthodontic treatments.
Frequently Asked Questions About Crossbites
1. Is a crossbite the same as an underbite?
No. A crossbite describes a situation in which one or more upper teeth sit inside the corresponding lower teeth. An underbite generally refers to the lower front teeth extending beyond the upper front teeth. The conditions can occur together, but they are not interchangeable.
2. Can a crossbite correct itself?
Some bite relationships may change as children grow and permanent teeth erupt, but a crossbite should not be assumed to correct itself. A dentist can determine whether monitoring is reasonable or whether treatment is recommended.
3. Does every crossbite require braces?
No. Treatment depends on the location, cause, and severity of the crossbite. Some cases may be treated with clear aligners or other orthodontic appliances, while others may only require monitoring. More complex cases may need specialist care.
4. Can adults get crossbite treatment?
Yes. Many adults can correct selected crossbites with braces or clear aligners. If the problem is primarily skeletal rather than dental, treatment may be more complex and could require specialist assessment.
5. Can a crossbite cause jaw pain?
A crossbite may be associated with altered jaw movement in some people, but jaw pain has many possible causes. A crossbite alone does not establish the reason for pain. A dental or medical evaluation can help determine what is contributing to the symptoms.
6. At what age should a child be checked for a crossbite?
Children should have regular dental examinations as their teeth and jaws develop. If you notice that your child's teeth do not meet correctly or their jaw shifts when biting down, arrange an evaluation rather than waiting for all permanent teeth to erupt. The dentist can advise whether early orthodontic assessment is appropriate.
7. How long does crossbite treatment take?
Treatment time varies according to the severity of the crossbite, the number of teeth involved, the treatment method, and the patient's response. Some cases may be corrected relatively quickly, while more complex orthodontic treatment can take considerably longer.
8. Can a crossbite return after treatment?
Teeth can shift after orthodontic treatment, particularly if retainers are not worn as directed. Following the retention plan and attending recommended follow-up appointments can help maintain the result.
Schedule a Dental Evaluation in Maitland, FL
A crossbite can range from a minor tooth-position issue to a more complex problem involving the relationship between the upper and lower jaws. Identifying the cause is important because treatment should address the specific alignment concern rather than simply changing how the teeth look.
If you have noticed that your teeth do not meet evenly, your jaw shifts when you close your mouth, or your child has an unusual bite, a professional evaluation can help clarify the next steps.
Pacha & Bijan Dental provides dental care for patients in Maitland, Florida, and surrounding communities. Contact the office to discuss your concerns and determine whether a dental or orthodontic assessment may be appropriate.
Pacha & Bijan Dental
320 N Maitland Ave, Ste B
Maitland, FL 32751
📞 (407) 647-1346
🌐 www.bijandental.com
Schedule an appointment to discuss your bite, understand your treatment options, and take an informed approach to protecting your long-term oral health.
