Do 3D printed aligners harbor more bacteria? new study investigates

NCT ID NCT07143370

First seen Nov 01, 2025 · Last updated Apr 29, 2026 · Updated 26 times

Summary

This study looked at whether 3D printed clear aligners collect more bacteria on teeth and aligner surfaces compared to conventional aligners. Thirty participants wore both types of aligners, and researchers swabbed their teeth and aligners to measure microbial colonization. The goal was to understand if the material affects oral hygiene, not to treat any disease.

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Contacts and locations

Locations

  • University of Michigan

    Ann Arbor, Michigan, 48109, United States

Conditions

Explore the condition pages connected to this study.