Quick summary
Treatment depends on severity and cause:
Underbite is a type of malocclusion (improper bite) where your lower front teeth protrude beyond your upper front teeth. An underbite is more than just a cosmetic concern, it can possibly affect how you chew, speak, and maintain long-term oral health. While some cases are mild, others may worsen over time if left untreated.
The good news is that underbites are treatable. Depending on the severity, there are several options available today. In this guide, we’ll walk you through how to fix an underbite, including the best treatment options based on severity, how long treatment takes, and what you can expect throughout the process.
An underbite can usually be fixed, but the right treatment depends on several factors, including your age, the severity of the condition (dental vs. skeletal), and whether the issue involves the jaw bones or just the teeth. Trusted medical and orthodontic sources agree that treatment options range from braces or clear aligners for mild cases to orthognathic (jaw) surgery for more severe skeletal underbites.
For underbites caused mainly by tooth positioning, traditional braces or clear aligners can gradually move the upper and lower teeth into better alignment. In some cases, elastics (“rubber bands”) are used to help fine-tune the bite. Evidence shows that non-surgical orthodontic treatment can significantly improve underbites in children and teenagers, especially when started early.
In growing children, orthodontists may use appliances such as upper-jaw expanders, reverse-pull headgear (also known as a “facemask”), or chin caps. These devices help guide jaw development and reduce the underbite before the jaw bones fully develop. Clinical guidance highlights that early treatment, typically between ages 7 and 12, can often correct underbites without the need for surgery.
If overcrowding or extra lower teeth are contributing to the underbite, removing one or more teeth can create space for proper alignment using braces or aligners. In some cases, minor reshaping of the teeth (enamel contouring) or adjusting their position can also improve both bite function and appearance.
For severe underbites caused by skeletal issues, such as a lower jaw that sits too far forward or an upper jaw that is too short, treatment may involve a combination of braces and corrective jaw surgery. This type of surgery repositions the upper jaw, lower jaw, or both. Major hospitals and orthodontic centers consider it a safe and effective option for adults with fully developed jaws. Braces are typically used after surgery to fine-tune the final bite.
After treatment with braces, aligners, or surgery, retainers (either removable or fixed) are used to maintain the new position of the teeth and jaws and prevent relapse. Regular follow-ups with a dentist or orthodontist are important to monitor bite function, speech, jaw health (TMJ), and oral hygiene.
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As mentioned above, braces and clear aligners are common and effective ways to correct an underbite. These options range from traditional metal braces to more discreet solutions like clear aligners. However, whether braces can fix an underbite depends on several factors, including the severity of the condition. It is always recommended to consult a dental professional to determine the most suitable treatment for your specific case.
Zenyum Invisible braces are one of the orthodontic options used by dental experts to help align teeth and improve your smile. They consist of a series of fully customised clear aligners, designed to fit snugly over your teeth.
Based on the severity of the underbite condition, Zenyum invisible braces can be used to correct teeth alignment. Through gradual application of pressure, Zenyum invisible braces enable teeth movement over a period of time based on the severity of the teeth condition.
Underbites come in different forms, with their severity varying from mild to more pronounced cases. The primary cause is a misalignment of the upper and lower jaws, where the lower teeth protrude beyond the upper teeth. Left untreated, underbites can lead to various complications, affecting not only oral health but also your overall well-being.
While mild cases may not cause significant problems, severe underbite can often lead to various functional and aesthetic concerns. That’s why early intervention is important to prevent it from getting worse.
For a full explanation of causes and classifications: Underbite Explained: Causes, Classifications and Treatments Options
It is essential to recognize the symptoms of an underbite to facilitate timely intervention. Identifying these signs encourages individuals to seek professional assessment and intervention in order to address the root cause. Several indicators that may aid in identifying an underbite include:
Neglected underbites may give rise to various complications impacting both oral health and overall well-being. Correcting underbite at an early stage can help prevent effects such as:
Yes, an underbite can affect speech, especially the clarity of certain consonant sounds such as /s/, /z/, /t/, /d/, and /l/. In children, a significant underbite is also linked to a higher risk of speech-sound disorders and delayed speech development if left untreated.
When the lower jaw protrudes forward, it changes the tongue’s natural resting position inside the mouth. This shift can make it harder for the tongue to accurately touch the roof of the mouth and the upper teeth, both of which are essential for producing clear speech sounds. Because of this altered positioning, certain sounds become more difficult to pronounce. This is especially true for fricatives like “s” and “z,” as well as alveolar consonants such as “t,” “d,” and “l,” which rely on precise tongue placement.
As a result, speech may sound less clear. Some individuals may develop a mild lisp, experience slight slurring, or produce speech that sounds more breathy than usual.
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