Orthodontic treatment isn’t just about straightening teeth with braces or aligners. Sometimes, you need additional appliances to create space for proper alignment. One such device is an expander in orthodontics that widens the upper jaw and improves oral health. If you or your child have been recommended an expander, understanding what it is and how it works will ease your concerns.
What is an Expander in Orthodontics?
An expander in orthodontics is a specialized dental device that widens the upper jaw (palate). It’s most commonly used in children and teenagers as their jawbones are still developing and can be adjusted more easily. However, in some cases, adults can also benefit from an expander with a slightly different approach.
Expanders are recommended when a patient has a narrow upper jaw which can cause dental crowding, crossbites or breathing issues. By widening the palate, this device creates space for permanent teeth to align properly, reducing the need for tooth extractions or more invasive procedures in the future.
Types of Expanders in Orthodontics
There are different types of expanders, each for a specific purpose. The most commonly used are:
- Palatal Expander
A palatal expander is a metal appliance attached to the upper molars with bands. It has a central screw that is turned with a special key and gradually pushes the two halves of the upper jaw apart.
- Removable Expander
Some expanders are removable and look like retainers. These are used for minor expansions and are often prescribed for younger children or cases that require minimal adjustments.
- Fixed Expander
Fixed expanders like the Hyrax or Haas expander are cemented to the upper molars and remain in place throughout the treatment. They provide controlled and effective expansion of the jaw.
- Surgically Assisted Rapid Palatal Expander (SARPE)
For adults with a fully developed jaw, expansion is more challenging. In such cases, orthodontists may recommend a surgically assisted rapid palatal expander which combines orthodontic treatment with a minor surgical procedure to facilitate jaw expansion.
How Does an Expander Work?
An expander in orthodontics works by applying gentle but consistent pressure to the upper jaw and gradually pushing the two halves apart. The process involves the following steps:
1. Placement of the Expander
The orthodontist will attach the expander to the upper molars with bands or cement. The appliance will fit against the roof of the mouth.
2. Expander Activation
Most expanders need to be activated manually with a key. The patient or parent will turn the screw in the middle of the expander at regular intervals as instructed by the orthodontist. This will apply outward pressure to the jaw over time.
3. Jaw Adaptation
As the expander widens the palate, the jawbone creates new bone tissue in the gap. This is called bone remodelling and allows for permanent widening of the jaw.
4. Retention Phase
Once the desired expansion is achieved, the expander in orthodontics is left in place for a few months to allow the new bone to settle. Then the orthodontist may replace it with a retainer to maintain the result.
How Long is an Expander Worn?
Expansion time in orthodontics varies from patient to patient. On average:
- Active expansion 3 to 6 weeks.
- Retention for 4 to 6 months to ensure the jaw is stable.
Overall, patients wear an expander for 6 months to 1 year, depending on the complexity of the case.
Does Wearing an Expander Hurt?
Many patients ask if an expander hurts. While discomfort is common, especially in the first few days and after adjustments, it’s usually mild and temporary. Patients may experience:
- A feeling of pressure or tightness.
- Slight difficulty in speaking or swallowing initially.
- Temporary headaches or mild soreness.
Over-the-counter pain relief and soft foods can help with discomfort, and most patients adjust within a few days.
Benefits of an Expander in Orthodontics
An expander in orthodontics has many advantages:
- Creates Space for Teeth: Reduces the risk of crowding and extractions.
- Corrects Crossbites: Aligns the upper and lower jaws for better function.
- Improves Breathing: Opens the nasal passages for proper airflow.
- Enhances Facial Symmetry: Gives a balanced and beautiful smile.
- Preps for Braces: Ensures a stable foundation for future orthodontic treatment.
Why Choose Lach Orthodontic Specialists?
An expander in orthodontics is a device that gradually widens the upper jaw to create space for proper tooth alignment and better bite function. At Lach Orthodontic Specialists, expanders are used to correct narrow palates, crowding, and crossbites in growing children. By applying gentle pressure over time, the expander guides jaw development, preventing future problems and reducing the need for extractions or invasive procedures. Patients may experience some discomfort initially but long-term benefits are improved breathing, facial symmetry, and a healthier more balanced smile. If you are considering an expander, consult an orthodontist to determine the best treatment plan for you.
To Wrap Up
An expander in orthodontics is a valuable tool for achieving a healthy, aligned smile. By widening the upper jaw it corrects dental problems and improves breathing and overall oral function. While it may take some time and minor discomfort, it’s a worthwhile investment in your dental health. If you or your child have been recommended an expander, consult with our Lach Orthodontics Specialists to get the best treatment and see the expected results.