Cold therapy to improve numbing for painful tooth root canal
Part of Mouth & dental, Pain clinical trials.
This study tests whether applying cold (cryotherapy) to the gum and tooth before the numbing shot can make the anesthesia work better and reduce pain during a root canal for a severely inflamed tooth. If it works, the dentist's numbing may be more effective and you may feel less discomfort during the procedure.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are generally healthy and between 18 and 60 years old.
- You have a lower premolar tooth (a tooth in the lower jaw, near the back but not the molars) that is causing severe pain due to an inflamed nerve.
- The pain may wake you up or last for a while after eating or drinking something hot or cold.
- You have not taken pain medication (such as ibuprofen, acetaminophen, or opioids) within the last 12 hours before treatment.
- The tooth has not had any prior root canal or similar nerve treatment, and it shows no signs of infection at the root tip on X-rays.
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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