In a crossbite, one or more upper teeth bite inside the lower teeth instead of outside them. It puts uneven force through the bite, which can cause localised wear, gum recession and, over time, jaw discomfort.
In a crossbite, one or more upper teeth bite inside the lower teeth instead of outside them. It puts uneven force through the bite, which can cause localised wear, gum recession and, over time, jaw discomfort.
1Front and back crossbites
An anterior crossbite affects the front teeth and often looks like a small underbite. A posterior crossbite affects the back teeth, sometimes on one side only.
Single-side crossbites frequently make the lower jaw shift when closing, which is worth correcting for joint health as well as appearance.
2How it's corrected
Aligners widen the upper arch and reposition individual teeth in small, controlled steps, often assisted by attachments or elastics.
Retainers afterwards are essential — crossbites have a strong tendency to relapse if the corrected position isn't held.
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