Clear Aligners for Upper Jaw Widening With or Without Expander
Part of Mouth & dental clinical trials.
This study compares two ways to widen your upper jaw using clear aligners (Smartee brand). Researchers want to see if adding a special expander device helps straighten crowded teeth and fix bite problems more effectively.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 35 years old
- You have crowded upper teeth (4–8mm of crowding) but not due to bone structure issues
- You have a crossbite (upper and lower teeth don't line up properly) in one or both sides
- You are willing to wear clear aligners for at least 20 hours every day
- You have no gum disease, no jaw problems (TMJ/TMD), and no previous major dental work on upper back teeth
- You have recent, clear X-rays of your teeth and jaw
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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