Crossbite Causes and Treatment



There are things in this life that are better when they fit together : roommates, partners, the pieces of your mental puzzle when faced with a problem, and also your teeth .

When, when the mouth is closed, the teeth of the upper and lower jaw fit correctly, we speak of normal occlusion. However, if the relationship between the two arches when they come into contact is incorrect, there is a malocclusion and a bite problem .

The cross bite is one of the most common. It occurs when a tooth in the upper arch fits behind the lower teeth , instead of in front. This abnormality can cause chewing and joint problems , tooth wear and disorders such as bruxism. We tell you what it consists of, why it is generated and what is the best treatment to solve it depending on age!

What is the cross bite?

Bilateral cross bite. Treatment with self-ligating brackets Damon Clear.

The cross bite can be classified in different ways: depending on the location of the affected teeth, it will be posterior or anterior; Depending on whether it occurs only on one side of the arch or on both, we will speak of a unilateral or bilateral crossbite; and depending on the causes that provoke it, it will be of dental, skeletal or mixed origin . All these factors play a role in deciding the best crossbite treatment .

Although there are genetic factors that predispose to having a cross bite, it is important to bear in mind that the occlusion (the way of biting) can also change throughout life , because the teeth tend to move if nothing prevents it.

Luckily, our mouth has retention elements such as the gum and alveolar bone, as well as the teeth that contact each other. But there are also forces that help to displace them , such as the language, childhood habits or a progressive deterioration of these supports as a result of poor oral health.

If the relationship between the elements of the mouth and the displaced teeth is altered, the occlusion will change . This can occur in childhood, adolescence, and even adulthood. Therefore, the treatment will vary depending on the state of development of the jaws.

Patient with posterior crossbite, crowding and narrow arch, treated with Invisalign Full.

Device to correct crossbite in children

If periodic visits are made to the orthodontist during childhood and we detect the crossbite between the ages of 6 and 12 , while the jaws are developing and the replacement of teeth occurs, we can solve it with an interceptive orthodontic treatment. With this type of device we can control the growth of the maxillary and mandibular bones and avoid alterations.

How to correct crossbite in adults

However, correcting crossbite in adolescents and adults can be somewhat more difficult. At these ages, bones have finished developing and therefore it is no longer possible to mold them . In these cases, it is necessary to measure the severity of the crossbite and analyze whether its origin is skeletal (the upper jaw is narrower than the lower) or dental (the jaws are proportionate but there is dental malposition). We can find two options to correct the crossbite.

Invisalign treatment: In cases of dental origin, the crossbite can be corrected with fixed or removable orthodontics. In our clinic, we have a team of orthodontists with the Invisalign Platinum Provider certificate , which is awarded to professionals who have treated between 41 and 80 patients over 12 months. It is one of the most aesthetic and comfortable options if you need orthodontics.

Orthodontics combined with orthognathic surgery: In the most severe cases of skeletal origin, in addition to the corresponding orthodontic treatment, it will be necessary to intervene surgically to modify the bone bases of the palate and place them in the proper position . This procedure is called orthognathic surgery, and it greatly improves chewing function and facial aesthetics.

By correcting the crossbite and any other type of malocclusion, we will be able to better distribute the chewing forces and avoid dental wear and fractures, muscle or joint injuries and contribute to maintaining the supporting tissues of the teeth.

Invisalign specialists: we take care of your smile

We know that, although two people have the same bite problem, each case is unique , that is why we always work to focus our treatment on the person in front of us and we see them as a whole, not just their teeth.

When you make your first visit to our dental clinic, we will meet with you with several specialists, in order to analyze your needs and determine what is the best treatment for you .


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