Why under-the-tongue buprenorphine may harm teeth

Elucidating High Oral Fluid Exposure Mechanisms of Buprenorphine to Reduce Dental Caries

NIH-funded research University of Houston · NIH-11354393

This project looks at how buprenorphine taken under the tongue may cause tooth damage in people treated for opioid use disorder.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Houston NIH-funded
Lab location1 site (Houston, United States)
Project IDNIH-11354393 on NIH RePORTER

What this research studies

If you take buprenorphine under the tongue, researchers will study how high drug levels in saliva interact with teeth and oral tissues. The team will measure buprenorphine concentrations in oral fluids, use lab and animal models to track how the drug distributes in the mouth, and examine direct effects on tooth structure. They will also test possible ways to block or reduce the tooth-damaging effects so future treatments could be safer.

Who could benefit from this research

Good fit: Ideal candidates would be people currently taking or who have recently taken sublingual buprenorphine, especially those with new or worsening dental problems.

Not a fit: People who do not use sublingual buprenorphine or whose dental issues have clear non-drug causes may not benefit from this work.

Why it matters

Potential benefit: If successful, this work could lead to ways to prevent or reduce tooth damage for people using sublingual buprenorphine.

How similar studies have performed: Reports and an FDA warning have documented tooth problems with buprenorphine use, but the specific biological mechanisms are not well understood and this approach is relatively novel.

Where this research is happening

Houston, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.