Dental Malocclusion

Une jeune fille souriante montrant son appareil dentaire.
😬 What Is a Dental Malocclusion?

Understanding Misaligned Teeth and Jaws

A healthy smile starts with a proper bite — meaning well-aligned teeth and a harmonious fit between the upper and lower jaws. When the teeth or jaws are misaligned, this is called a malocclusion. While the term may sound technical, it describes a very common condition that can have a real impact on both oral health and quality of life.

🦷 Definition: What Is a Malocclusion?

The word "malocclusion" literally means "bad bite." In simple terms, it refers to a situation where the upper and lower teeth don’t fit together properly when the mouth is closed.

This can include:

  • Crooked, crowded, or widely spaced teeth

  • A protruding or recessed jaw

  • Poor alignment between the upper and lower arches


🧬 What Causes a Malocclusion?

Several factors can lead to a malocclusion, including:

  • Genetics – the most common cause (jaw shape, tooth size, etc.)

  • Early loss of baby or adult teeth

  • Prolonged oral habits such as thumb sucking, pacifier use, or mouth breathing

  • Jaw trauma or injury

  • Impacted or misaligned teeth


🔍 Types of Malocclusions

Malocclusions are generally classified into three main categories:

🔹 Class I:

The jaws are properly aligned, but the teeth are crowded, crooked, or unevenly spaced.

🔹 Class II (Retrognathism):

The upper jaw is positioned too far forward compared to the lower jaw, resulting in an overbite or "buck teeth" appearance.

🔹 Class III (Prognathism):

The lower jaw is positioned too far forward, causing a prominent chin and an underbite.

⚠️ Why Should a Malocclusion Be Treated?

Malocclusions can cause more than cosmetic concerns. They may lead to:

  • Difficulty chewing or speaking

  • Excessive or uneven tooth wear

  • Jaw pain, headaches, or TMJ issues

  • Breathing or sleep problems (such as snoring or sleep apnea)

  • Low self-esteem related to the appearance of the smile


👨‍⚕️ The Role of the Dentist

The dentist diagnoses and treats malocclusions using personalized solutions such as braces, clear aligners (like Invisalign®), expanders, and more.

Early screening during childhood allows for timely intervention and can help prevent more serious problems in adulthood.

📅 Schedule an orthodontic consultation today if you suspect a malocclusion or simply want to assess your bite and alignment. Proper dental positioning is about more than just looks — it’s a key part of long-term oral and overall health!