Pain Relief After Root Canal Retreatment
Part of Mouth & dental clinical trials.
This study tests two different ways of cleaning and treating a tooth that had a root canal treatment before. Researchers want to see which method causes less pain after the procedure.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 60 years old and in good overall health
- Your tooth had a root canal treatment at least 4 years ago
- Your previous root canal filling stops 2–4 mm short of the root tip
- X-rays show your tooth has an infection at the root tip but no symptoms
- Your tooth has only one root and one canal
- You have not taken pain relievers, antibiotics, or steroid medications in the past 2 weeks
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study compares different ways of moving the cleaning tool inside the tooth during a root canal to see which method causes less pain afterward. If you need a root canal on a lower premolar, this trial may help reduce your discomfort after the procedure.
This study compares how much pain you feel and changes in a pain-related enzyme when root canal treatment is done in one visit instead of two. It aims to find which approach is more comfortable for people with an infected tooth.
This study tests two different ways to do a root canal on a tooth with an infection at the tip of the root. It aims to find which method causes less pain after the procedure.
This study tests if applying cold therapy to a tooth after a second root canal procedure can reduce pain, and looks at how it affects certain natural chemicals in the body. It may offer a simple, drug-free way to manage discomfort after the treatment.
This study compares two types of medications placed inside a tooth after root canal treatment to see which one reduces pain better. You'll be asked about your pain levels after treatment, and researchers will measure a pain-related substance in your saliva.
This study compares pain after two ways of doing a root canal on lower back teeth with an inflamed nerve (irreversible pulpitis). It may show which method causes less pain after treatment.
Hear when a new Apical Periodontitis trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.