TPA transpalatal arch

Well done! You’ve completed your palate expander and are now receiving the next part of your top brace!

What is it?

The Transpalatal Arch (TPA) is a fixed orthodontic appliance used to maintain the width of the upper dental arch. It’s a bar which runs across the roof of your mouth connecting your molar teeth. Its function is to widen out your upper arch of teeth giving you a broader smile.

The TPA also serves as a means to reinforce anchorage in orthodontic treatment. By connecting the upper molars (back teeth) together, it helps stabilize them and prevents unwanted movement during various stages of braces treatment, such as space closure or tooth alignment

Adjustment Period

Initially, you may experience some discomfort or difficulty speaking due to the presence of the TPA. This is normal and will typically diminish within a few days as you adjust to the appliance.

Keep it Clean!

It’s essential to maintain good oral hygiene while wearing a TPA. Brush your teeth thoroughly after meals and use interdental brushes or floss to clean around the appliance to prevent the build-up of plaque and food debris.
Clean around this bar after eating and remove any food which may get caught. Make sure to floss your teeth daily, this is very important and brush twice a day as normal.

Always Brush Gently

Brushing too vigorously can damage the delicate gum tissue, leading to irritation, inflammation, and eventually gum recession. By brushing gently, you can effectively clean your teeth without causing harm to your gums.

Avoid Sticky Foods

Refrain from consuming sticky or hard foods that could damage the TPA or get lodged in it. This includes chewing gum, caramel, and hard candies.

Blisters and Sores

Sometimes it can rub your tongue while you are getting used to it. If this happens rinse your mouth with warm salty water as often as needed until your tongue has recovered (Stir 1 tablespoon of salt into a glass of warm water).


If the bar ever felt loose just give our clinic a call and we will book you in to take a look and adjust it.


If pain relief is required, take what you would usually take for a headache. ibuprofen has been proven to be effective.

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