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Types of Teeth That Require Orthodontic Treatment and Suitable, Safe Orthodontic Methods

Pham Quoc Toan
Pham Quoc Toan
Asked: 19/06/2026

I notice that everyone who undergoes orthodontic treatment has a different condition—some have protruding teeth, some have an underbite, and others have spacing issues. I would like to ask the doctor which types of teeth require orthodontic treatment, and for each condition such as protruding teeth, underbite, misalignment, or crowding, which orthodontic method is the most suitable and safest to achieve long-term results?

Hello, misaligned teeth and malocclusion not only affect aesthetics but also directly impact chewing function and long-term oral health. From an orthodontic perspective, the doctor will clearly explain the types of teeth that require orthodontic treatment as well as the cases that should undergo orthodontic treatment early or may be postponed, helping you choose the most appropriate approach for your condition.

Common Types of Teeth That Require Orthodontic Treatment Today

When evaluating the types of teeth that require orthodontic treatment, orthodontists consider not only aesthetics but also occlusion, jaw harmony, and the risk of future complications.

Protruding Teeth and Underbite

These are the most common forms of malocclusion. Protruding teeth are often caused by forward-positioned teeth or an excessively developed upper jaw, while an underbite occurs when the lower jaw protrudes excessively. Without orthodontic correction, these conditions can lead to temporomandibular joint fatigue, difficulty chewing, and noticeable facial imbalance. For this group, orthodontic treatment plays a crucial role, especially when proper orthodontic techniques are applied from the beginning.

Spacing Between Teeth

Spaced teeth allow food to become trapped easily, increasing the risk of gingivitis and tooth decay. Over time, these gaps may widen further as teeth shift freely. Among the types of teeth requiring orthodontic treatment, spaced teeth often have a relatively straightforward treatment course when addressed early and followed by proper retainer use after treatment.

Crowded and Misaligned Teeth

Crowded, rotated, or mispositioned teeth not only affect aesthetics but are also difficult to clean, increasing the risk of gum inflammation and alveolar bone loss. This is one of the most common indications for orthodontic treatment in both children and adults.

Malocclusion

This includes deep bite, open bite, crossbite, and other occlusal discrepancies. These conditions are often difficult to identify with the naked eye but can significantly affect chewing function and speech. Orthodontists commonly recommend early orthodontic intervention to reduce the risk of temporomandibular joint disorders in the future.

Cases That Should Receive Early Orthodontic Treatment

From a clinical perspective, there are situations where orthodontic treatment should be initiated as early as possible to achieve optimal results and shorten treatment time.

  • Children showing clear signs of malocclusion, severe tooth misalignment, or harmful oral habits such as thumb sucking or tongue thrusting.
  • Protruding teeth or underbite caused by jaw growth discrepancies, where early intervention can help reduce the need for surgery later.
  • Severe crowding that makes oral hygiene difficult and causes recurrent gum inflammation.
  • Cases of malocclusion that directly affect chewing and speech.

In these situations, early orthodontic treatment allows teeth to move more efficiently, improves jaw responsiveness, and significantly reduces the risk of complications.

Cases Where Orthodontic Treatment May Be Postponed

Not every dental irregularity requires immediate orthodontic treatment. Certain conditions may be monitored or postponed if they do not significantly affect oral health.

  • Mild tooth misalignment with a bite that still functions effectively.
  • Adults with existing oral health conditions that require stabilization first, such as periodontal disease or severe tooth decay.
  • Cases where patients need time to prepare financially or arrange their schedules to follow the orthodontic treatment plan properly.

However, postponement should only be considered after a thorough examination and evaluation by an orthodontist to prevent the condition from worsening over time.

Advice from an Orthodontist

The doctor advises against evaluating your dental condition based solely on visual appearance. Each individual falls into different categories of types of teeth requiring orthodontic treatment and orthodontic treatment cases, requiring a personalized treatment plan based on X-rays, dental impressions, and occlusal analysis.

If you are unsure whether your teeth require orthodontic treatment, or whether treatment should begin immediately or be postponed, you can visit Gangwhoo Cosmetic Hospital for a direct consultation with an orthodontist, a detailed assessment, and a personalized treatment roadmap. Accurate evaluation from the beginning helps save time and costs while ensuring long-lasting, stable orthodontic results.


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