Expert Orthodontic Care for
Bite Correction
Podcast on this blog is available now! →
Overbite vs Underbite: Causes, Differences & Treatment
Malocclusions—aka bite misalignments—are more common than you think. Two of the most prevalent types are overbites and underbites. Whether you’re a concerned parent or an adult exploring orthodontic treatment, understanding these bite issues is the first step towards a healthier, straighter smile. In this guide, we break down everything you need to know about overbite vs underbite, their causes, differences and how ClearPath Orthodontics can help.
Read More: Why Dentists Are Switching to Clear Aligners
What Is an Overbite?
An overbite occurs when the upper front teeth excessively overlap the lower front teeth. While a slight overbite is normal, a pronounced one can cause functional and aesthetic problems.
Causes of Overbite
Genetics (inherited jaw shape)
Thumb sucking or prolonged pacifier use
Tongue thrusting
Nail biting or pencil chewing
Loss of back teeth without replacement
Types of Overbites
Dental Overbite: Caused by misaligned teeth rather than jaw position.
Skeletal Overbite: Due to an irregular jaw size or shape, often requiring more intensive treatment.
Risks of an Untreated Overbite
Difficulty biting and chewing
Speech issues
Jaw pain or temporomandibular joint (TMJ) problems
Increased risk of tooth wear and damage
Gum recession and oral hygiene challenges
What Is an Underbite?
An underbite is the opposite of an overbite—it occurs when the lower front teeth protrude beyond the upper front teeth. This is typically more noticeable and can severely impact jaw function.
Causes of Underbite
Genetic jaw discrepancies
Childhood habits like pushing the tongue against the lower teeth
Delayed loss of baby teeth or abnormal permanent teeth eruption
Types of Underbites
Dental Underbite: Misalignment caused by tooth position.
Skeletal Underbite: Caused by a disproportionately large lower jaw or small upper jaw.
Risks of an Untreated Underbite
Difficulty chewing and speaking
Chronic jaw pain
Higher risk of tooth decay and gum issues
Facial imbalance or asymmetry
Wear and tear on enamel
Overbite vs Underbite: Key Differences
Let’s look at a quick comparison to understand the distinct features of each:
| Feature | Overbite | Underbite |
|---|---|---|
| Jaw Alignment | Upper teeth extend over lower | Lower teeth extend beyond upper |
| Common Causes | Thumb sucking, heredity, tooth loss | Genetics, prolonged habits, jaw size |
| Risks | Jaw pain, tooth wear, speech issues | TMJ pain, chewing difficulty, facial imbalance |
| Treatments | Braces, aligners, surgery (severe cases) | Braces, aligners, jaw surgery |
| Common Age Group | Both children and adults | Both children and adults |
| Malocclusion Class | Class II | Class III |
Overbite and Underbite Treatment Options
Thanks to modern orthodontics, overbites and underbites can be treated effectively. The right approach depends on the type and severity of the malocclusion.
Non-Surgical Treatments
Braces
Traditional metal or ceramic braces gradually reposition teeth and correct bite issues. They’re effective for both dental overbites and underbites.
Clear Aligners
ClearPath Aligners offer a discreet and comfortable solution. They’re especially effective for:
Clear aligners for overbite (mild to moderate cases)
Clear aligners for underbite (when caused by dental misalignment)
Orthodontic Appliances
Functional appliances, such as headgear or bite correctors, may be used in growing children to modify jaw development early.
Surgical and Advanced Options
Jaw Surgery (Orthognathic Surgery)
Necessary in severe Class II (overbite) or Class III (underbite) malocclusions, where jaw bones must be repositioned.
Tooth Extraction
If overcrowding is present, selective extraction may be recommended to create space for proper alignment.
Deep Bite Treatment
Severe overbites (deep bites) may require a combination of braces and surgery, depending on jaw involvement.
Early Orthodontic Intervention
Starting treatment early can prevent complications later.
Overbite in Children
Interceptive orthodontics between ages 7–10 can reduce the need for braces later.
Underbite in Adults
Adult underbites can still be treated effectively, although it may take longer and sometimes involve surgical options.
Read More: How to Manage Clear Aligners While Fasting
The Consequences of Untreated Overbite or Underbite
Ignoring bite misalignment can have serious long-term effects:
Chronic jaw pain and headaches
Abnormal facial structure
Tooth grinding and enamel wear
Speech impediments
Poor self-esteem due to visible misalignment
Why Choose ClearPath Orthodontics?
ClearPath is a pioneer in clear aligner technology in Pakistan and beyond. Here’s what sets us apart:
Customised Treatment: Each aligner is tailor-made based on 3D digital scans.
Orthodontist-Supervised: Your journey is guided by certified professionals.
Comfort & Aesthetics: Transparent, removable aligners that fit seamlessly into your lifestyle.
Local Expertise: Designed and manufactured in Pakistan to global standards.
Whether you need underbite treatment or overbite correction, ClearPath Aligners are a modern, safe and effective solution.
Post-Treatment & Maintenance
The journey doesn’t end once your smile is aligned.
Retainers
Wearing retainers post-treatment helps maintain the new position of your teeth and prevents relapse.
Follow-Up Visits
Regular check-ups ensure your progress is on track and allow early detection of any issues.
Oral Hygiene
A clean mouth keeps your smile healthy. Brush twice daily, floss and rinse with mouthwash to maintain results.
Book Your Consultation at ClearPath
Whether you’re dealing with an overbite or underbite, early intervention and expert care can transform your oral health and confidence. ClearPath Orthodontics offers a modern, customised solution with our world-class aligners. Don’t wait for discomfort to become distress—book a consultation today and take the first step toward a confident, corrected bite.
FAQ's
Q1: What is the difference between Class II and Class III malocclusion?
Class II Malocclusion: Associated with overbite—upper jaw extends beyond lower jaw.
Class III Malocclusion: Associated with underbite—lower jaw extends beyond upper jaw.
Q2: Do Clear Aligners Fix Deep Bite?
Yes, in many cases. ClearPath Aligners can treat deep bites (severe overbites) through staged tooth movement.
Q3: Is Underbite Surgery Always Necessary?
Not always. Mild to moderate underbites can be corrected with aligners or braces. Surgery is reserved for severe skeletal discrepancies.
Q4: Can Adults Get Treatment?
Absolutely! Underbite in adults and overbite correction in late teens or adults are both effective with today’s orthodontic advancements.