Overbite vs. Underbite: How Dr. Amir Corrects Jaw Misalignment in Glendale

• Posted: April 11, 2026
• At: 6:03 am
• By: Dr. Amir Dadgar-Yeganeh

Overbites and underbites are two common jaw misalignments that Dr. Amir corrects with advanced orthodontic treatments like braces and Invisalign in Glendale. These conditions, collectively known as malocclusions, affect more than just the aesthetics of your smile; they impact how you chew, speak, and even breathe.

At Glendale Orthodontics, we specialize in diagnosing these irregularities early to create a balanced, functional bite. Dr. Amir Dadgar-Yeganeh combines clinical precision with a patient-centered approach, ensuring that families in Glendale receive care tailored to their unique facial structures.

What Is an Overbite?

An overbite occurs when the upper front teeth overlap significantly over the lower front teeth. While a small amount of overlap is normal, a deep overbite can cause the lower teeth to bite into the roof of the mouth or lead to excessive wear on the enamel.

Common causes include:

• Genetics: Naturally occurring jaw shapes passed down through families.

• Childhood Habits: Prolonged thumb sucking or pacifier use that alters the development of the alveolar bone.

• Overactive Muscles: Tongue-thrusting habits that push the upper teeth forward.

If left untreated, a severe overbite can lead to jaw pain (TMJ), speech impediments, and a higher risk of trauma to the protruding front teeth.

What Is an Underbite?

An underbite is characterized by the lower teeth extending out beyond the upper front teeth. This is often a skeletal issue where the lower jaw is too large or the upper jaw is too small.

Possible causes include:

• Jaw Development Imbalance: Disproportionate growth between the upper and lower maxillary bones.

• Heredity: Underbites are often strongly linked to family history.

• Early Childhood Factors: Prolonged bottle feeding beyond a certain age can sometimes influence jaw positioning.

Underbites are usually visible even when the mouth is closed, often affecting the patient’s facial profile and leading to self-consciousness or difficulty with basic functions like biting into a sandwich.

Key Differences Between Overbite and Underbite

Understanding the difference between these two conditions is the first step toward correction.

How Dr. Amir Diagnoses Jaw Misalignment

A successful outcome begins with an accurate diagnosis. At Glendale Orthodontics, every patient starts with a thorough evaluation to identify bite irregularities early. We utilize 3D iTero® digital scans and precision X-rays to see exactly how the teeth and jaw bones interact.

Dr. Amir assesses the “relationship” between your jaws—not just the straightness of your teeth. This comprehensive view allows us to customize a treatment plan that respects your age, bone density, and aesthetic goals. If you suspect a bite issue, you can Request Your Consultation to get a clear picture of your options.

How Braces Help Correct Overbites and Underbites

Traditional metal braces remain the “gold standard” for correcting moderate to severe jaw misalignments. By applying constant, controlled force, braces reposition the teeth while simultaneously influencing the jaw’s relationship.

To correct an overbite or underbite, Dr. Amir often uses elastics (rubber bands). These small, removable bands hook onto the brackets to provide the necessary tension to move the entire dental arch forward or backward. This traditional braces treatment is highly effective because it allows for 24/7 orthodontic pressure, which is essential for complex skeletal movements.

Can Invisalign Fix Overbite and Underbite?

Modern Invisalign treatment is no longer just for simple crowding. With the use of “SmartForce” attachments and elastics similar to those used with braces, Invisalign can effectively correct mild to moderate overbites and underbites.

The Invisalign Advantage:

• Digital Precision: Dr. Amir uses software to plan each tooth’s movement before you even wear your first tray.

• Comfort and Aesthetics: Clear aligners are nearly invisible, making them a favorite for Glendale professionals and self-conscious teens.

• Braces: Best for complex jaw alignment and significant skeletal shifts.

• Invisalign: Offers lifestyle flexibility for moderate bite correction.

When Surgery May Be Needed

In some severe cases—usually in adults whose jaw bones have finished growing—orthodontic treatment alone may not be enough to fix a skeletal misalignment. This is known as orthognathic surgery.

Dr. Amir takes a conservative approach, always prioritizing non-surgical methods like arch expansion or specialized appliances first. However, when surgery is necessary to ensure long-term health and facial balance, we collaborate with top-tier oral surgeons to coordinate your care, ensuring your braces or Invisalign work in perfect harmony with the surgical results.

Why Choose Dr. Amir at Glendale Orthodontics

Choosing a specialist matters. Dr. Amir Dadgar-Yeganeh is not only a board-certified orthodontist but also a faculty member at the UCLA School of Dentistry. This commitment to education ensures our practice uses only evidence-based, cutting-edge techniques.

Serving Glendale and surrounding communities, we provide a patient-centered environment where your questions are always answered. We don’t believe in one-size-fits-all smiles; we believe in precision orthodontics that enhances your natural beauty. Visit our Home Page to learn more about our philosophy.

People Also Ask (FAQ)

• Can braces fix overbite or underbite completely?

  Yes. Braces move both the teeth and the supporting jaw structure into proper alignment over time.

• Is Invisalign effective for bite correction?

  Invisalign is very effective for mild-to-moderate cases, provided the patient wears the aligners for the recommended 22 hours a day.

• What age is best to fix jaw alignment issues?

  Early adolescence (ages 10-14) is often ideal because the jaw is still growing, but adults can achieve excellent results as well.

• Do jaw misalignments cause TMJ?

  Yes, an uneven bite places extra stress on the jaw joints, which can lead to chronic pain and headaches.

• How long does treatment take?

  Bite correction typically takes between 12 and 24 months, depending on the severity of the misalignment.

Final Call to Action

Whether you’re dealing with an overbite or underbite, Dr. Amir offers personalized, high-precision care right here in Glendale. Don’t let a misaligned jaw affect your health or your confidence.

Schedule a consultation today and discover which treatment option fits your comfort, goals, and smile!