Comparing medicines for failed root canal treatment
Treatments studied
Part of Mouth & dental clinical trials.
This trial compares different medicines placed inside the tooth after a failed root canal to help heal the infection at the root tip. If you have a back tooth that still has an infection even though it had a root canal years ago, this study may test which medicine works best for you.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 60 years old and otherwise healthy (no major medical problems).
- You have at least one molars (back tooth) with a root canal that failed—meaning the infection at the tip of the root is still there or came back.
- Your first root canal was done at least 4 years ago, or your tooth still hurts, is tender when touched, or has a pimple on the gum.
- You have not taken antibiotics in the last 3 months or painkillers in the last 7 days before treatment.
- Your tooth does not have deep gum pockets, cracks, or other problems that would make retreatment impossible.
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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