Overbite and Underbite: Causes, Treatment, and Correction

woman smiling with her eyes closed

An overbite and underbite are both types of malocclusion, which is a misalignment of the teeth and jaws. An overbite occurs when the upper teeth overlap the lower teeth, while an underbite occurs when the lower teeth overlap the upper teeth.

These conditions can cause various problems, including difficulty speaking, difficulty chewing, and an increased risk of decay and dental problems. So, what causes an overbite and underbite? 

1. Overgrowth

The most common cause of an overbite and underbite is an overgrowth of the jawbone, which genetics, environmental factors, or a combination of the two can cause. In some cases, the underlying problem is a genetic predisposition to a particular type of malocclusion. 

For example, some individuals may have a genetic tendency towards an overbite, while others may be predisposed to an underbite. In addition, a common cause of an overbite or underbite is excessive thumb-sucking during childhood. 

2. Environmental Factors

In some cases, environmental factors can also play a role in developing an overbite or underbite. For example, poor dental hygiene, diet, or even recreational activities can all contribute to forming an overbite or underbite.

3. Lifestyle

Additionally, an individual’s lifestyle can also contribute to the development of an overbite or underbite. For example, an individual who grinds their teeth or clenches their jaw may be more likely to develop an overbite or underbite. 

Malocclusion: Treatment and Correction 

An incorrect bite, also known as a malocclusion, can lead to an array of dental issues. Fortunately, treatments and corrective measures can help restore proper alignment and function to your bite. Two of the most common malocclusions are overbite and underbite.

When treating and correcting an overbite or underbite, the treatment that’s best for you will depend on the severity of your condition. In mild cases, your dentist may recommend orthodontic braces to move your teeth into the correct position gradually. In more severe cases, you may need surgery to reposition your jaw or remove teeth or bone.

1. Bite Guard

If your overbite or underbite is causing you pain or discomfort, your dentist may recommend a bite guard. A bite guard is a custom-fitted plastic appliance that you wear at night to keep your teeth from grinding or clenching. It also helps prevent further damage to your teeth and jaw.

2. Dental Crowns and Veneers

Dental crowns and veneers are also another treatment option for correcting an overbite or underbite. Crowns and veneers are designed to cover and reshape the surface of your teeth.

3. Invisalign

Invisalign is an ideal treatment for overbites and underbites because it is discreet and comfortable. Unlike traditional metal braces, Invisalign aligners are almost invisible, so you can continue to smile confidently throughout your treatment. The aligners are also removable, which makes it easier to brush and floss your teeth and maintain your regular oral hygiene routine. 

Invisalign is an effective, comfortable treatment option for overbites and underbites. It is discreet and can be customized to the individual patient’s needs. Suppose you are considering Invisalign to help correct and treat your overbite or underbite. In that case, it is important to consult your dentist to determine if it is the right treatment.


While the treatment and correction of both overbite and underbite can vary depending on the severity of the malocclusion, the most common form of treatment includes a bite guard, dental crown and veneers, and Invisalign, as well as surgery in more extreme cases. It is important to consult with a dentist to determine the best course of treatment for your individual case. 

Are you looking for Invisalign in Maynard? Look no further than Sudbury Dental Arts. You should never take your oral health for granted, so we provide solutions to achieve this goal. Schedule an appointment today!



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