Comparing clear aligner treatment with and without a jaw expander
Part of Mouth & dental clinical trials.
This trial compares two ways to widen the upper jaw using Smartee clear aligners: one with a special expander (S11) and one without. It aims to find which method better corrects crowding and crossbite in adults.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 35 years old.
- You have mild to moderate crowding in your upper teeth (around 4-8 mm).
- You have a crossbite (upper teeth fitting inside lower teeth) on one or both sides.
- You are willing to wear clear aligners for about 20 hours per day.
- You have healthy gums and no active dental problems.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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