What is a crossbite? Signs, effects and treatment


Crossbite is a deformation of one or more teeth that are in the improper position whether they are nearer to the tongue or nearer to the jaw than their normal actual position. Sometimes front teeth could be misaligned while sometimes the rear ones and in extremely rare cases, both are misaligned. A crossbite is most common in children, and if it is not corrected as the patient grows older, it can hurt his health.

A crossbite makes it hard to shut your mouth adequately, finding it challenging for sufferers to chew or even speak! Treatment for persons who have been infected by crossbites is critically important! since it can make the jaw develop incorrectly, with one side of the jaw being larger than the other, affecting your face features and potentially leading to hazardous dental complications in the future.

Type of Crossbite

Posterior Crossbite

Rear teeth are affected by posterior crossbites. Whenever you bite down, the upper back teeth will lie within the lower back teeth in this sort of crossbite. They might be one-sided or two-sided.

Anterior Crossbite 

The front teeth are affected by an anterior crossbite. The bottom front teeth are arranged to protrude past the higher front teeth in this scenario. An “underbite” is the term for this condition. One of the most prevalent sorts of crossbite is called an anterior crossbite.

Cause of Crossbite

  • Crossbites and underbites have two basic reasons: hereditary origins and developmental ones. Teeth alignments and jaw shape, like all the other physical characteristics, are hereditary. Crossbites are inherited, so if a parent, grandparents, or other relation has one, there’s a strong probability that a child will receive one as well.
  • Crossbites cannot be prevented in kids, but they can be properly addressed with orthodontic treatment by a professional, certified orthodontist.
  • A crossbite could also be induced by environmental causes, implying that it is the consequence of an external force. Because the teeth are made of bone, they can be shifted or forced out of position with the correct amount of force. For example, children’s thumb sucking, bottle use, nail-biting, and undesirable chewing habits.

Signs of crossbite

  • Having a lisp and not being able to talk properly
  • While speaking or eating, you are more likely to bite your inner cheek and tongue.
  • Jaw discomfort
  • One or more teeth are hurting.
  • Severe Headaches
  • Gum disease and tooth decay
  • Asymmetry of the jaw and facial characteristics, including asymmetry of the jaw and facial features

Effects of Crossbite

Impairment of speech

Your mouth performs the activities required for clear speech with the support of a properly positioned bite. This implies that misalignment of bite might have an impact on how you pronounce things.

Headaches & Jaw Pain

A crossbite can disrupt the transmission of stress on the jaws, resulting in a variety of problems. The Increased and uneven strain on our jaw joints due to a crossbite can result in pain, and migraines.

Tooth erosion

Because of their shape and position, brushing misaligned teeth is challenging. Brushing and flossing improperly can contribute to tooth decay since bacteria can easily reach a tooth that hasn’t been cleaned.

Hurting Bites 

Crossbite robs you of the pleasure of biting down on hard objects, finding it challenging to even enjoy your favorite delicacies at times. It causes excruciating pain, you must seek medical help before the situation worsens.

Treatment of Crossbite

Orthodontic tools or surgical therapeutic options are commonly used to treat crossbites. The treatment time for kids and adults depends on the extent of the crossbite. A crossbite might take somewhere from 18 months to three years to rectify.  If a crossbite is discovered when a kid is still young, therapy might begin before the age of ten. There are various treatments for crossbite as discussed below.

Tooth Extraction

Tooth extraction could be done when there is only one tooth that is crooked owing to overcrowding. It’s a difficult procedure that could be made easier with anesthetics.


Crossbites and underbites can be treated with both metal and ceramic braces. It is accomplished by repositioning the mismatched teeth until the bite is properly aligned. Braces are an excellent treatment choice for kids, adolescents, and elderly persons since they are simple, productive, and convenient. They provide fast treatment times with great, precision and efficiency, and their extensive use has made them among the most cost-effective orthodontic treatments available.

Clear Aligners 

When administered by a skilled orthodontist, Invisalign therapy is a very safe and effective way to repair crossbites. Because of its simptheirity of use and inconspicuous, modest appearance, Invisalign transparent aligners have grown in popularity.

The clear aligners are detachable, letting you eat and drink anything you want while undergoing treatment, and they are practically undetectable when worn, helping you to obtain a gorgeous, healthier smile while maintaining your looks.


Expanders are dental instruments used to broaden the upper arch in youngsters. The expander device is used to address a growing posterior crossbite and to help the deciduous teeth in a normal and natural manner. Because a child’s teeth, bones, and palate are still growing, now is the optimum moment to interfere and guide growth in a better direction. When utilized by a professional orthodontist, expanders are a very secure, pleasant, and successful technique. When your child grins, it is not noticeable, and they are unlikely to detect it after it is attached to the top of their mouth.

Palatal Expansion 

Palatal Expander, in conjunction with Aligners or braces, will effectively correct the crossbite. The goal of this procedure is to extend the upper jaw and enlarge the teeth arch, allowing teeth to move to their proper positions.

Jaw surgery

When it pertains to extreme crossbite cases, all orthodontists would strongly advise jaw surgery to correct the problem.

During the procedure, the doctor makes incisions in the jaw, then slides it forward, backward, or up/down as needed. Eventually, the surgeon secures and holds the jaw in place with screws and plates to ensure that it does not move after the treatment.