Cleaning methods for repeat root canal on molars
Part of Mouth & dental, Pain clinical trials.
This study compares different cleaning methods for re-treating a molar that still has an infection after a previous root canal. The goal is to find the best way to disinfect the tooth and improve healing.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have a back tooth with a root canal infection that has not healed, confirmed by x-ray or 3D imaging.
- The root canal was done at least 2 years ago (or more than 1 year if you have pain, swelling, or a draining pimple).
- You are 16 years or older and can consent in English.
- You do not have serious health conditions like uncontrolled diabetes, autoimmune disease, or are on immune-suppressing drugs or need antibiotics before dental work.
- You have not taken antibiotics in the last 3 months.
- The tooth has no severe cracks, deep gum pockets (over 5 mm), root damage, or other issues that would make retreatment unsafe.
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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