Effect of Turmeric Extract With Black Pepper on Tooth Pain After Root Canal Treatment

November 5, 2026 updated by: Zonash Rashid, Watim Medical & Dental College

EFFECT OF PREOPERATIVE ORAL CURCUMIN WITH PIPERINE ON POSTOPERATIVE PAIN FOLLOWING SINGLE-VISIT PRIMARY ROOT CANAL TREATMENT IN MANDIBULAR MOLARS WITH SYMPTOMATIC IRREVERSIBLE PULPITIS

The purpose of this study is to evaluate the effectiveness of taking a turmeric extract supplement before a root canal to help reduce tooth pain after the procedure.

Patients diagnosed with symptomatic irreversible pulpitis (severe, irreversible tooth nerve inflammation causing significant pain) in their lower back teeth (mandibular molars) will participate in the study. All participants will receive a standard, single visit root canal treatment. Before the procedure begins, one group of patients will receive an oral supplement containing curcumin (the active compound in turmeric) combined with piperine (black pepper extract, which helps the body absorb curcumin). Another group will receive a placebo (an inactive substance).

The investigators will compare the levels of postoperative pain between the two groups in the days following the root canal treatment to see if the turmeric extract supplement successfully provides better pain relief.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients aged 18 to 60 years.
  • Mature permanent mandibular first or second molar with clinical diagnosis of symptomatic irreversible pulpitis.
  • Moderate to severe preoperative pain on the VAS.
  • Willingness to provide written informed consent and complete the 48-hour pain record.

Exclusion Criteria:

  • Pregnancy or lactation.
  • Known hypersensitivity to curcumin, turmeric or capsule components.
  • Analgesic or anti-inflammatory medication within 12 hours before treatment.
  • Anticoagulant or antiplatelet therapy, clinically relevant bleeding disorder, or significant hepatic, renal or gastrointestinal disease.
  • Acute apical abscess, swelling, sinus tract or radiographic apical periodontitis.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo Arm

An inactive capsule manufactured to be completely identical in appearance, color, size, and weight to the active curcumin capsule, administered preoperatively.

Experimental: Curcumin Arm

An oral administration consisting of curcumin paired with piperine, administered preoperatively to enhance bioavailability prior to the root canal treatment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative Pain Score
Time Frame: 24 Hours

Postoperative pain will be assessed using a 0-100 mm Visual Analog Scale (VAS), where a score of 0 mm represents "no pain" and a score of 100 mm represents "the worst possible pain." Patients will mark their pain level on a 100 mm line, and higher scores indicate a greater intensity of postoperative pain.

24 Hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Rescue Analgesic Consumption
Time Frame: Up to 48 hours post-treatment

The total amount of rescue medication taken by the participants will be recorded. Patients will be instructed to take Ibuprofen as needed for severe postoperative pain. The outcome will be measured as the average number of Ibuprofen tablets consumed per participant during the follow up period. A lower tablet count indicates better pain management by the preoperative intervention.

Up to 48 hours post-treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2027

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

July 1, 2027

Study Registration Dates

First Submitted

November 5, 2026

First Submitted That Met QC Criteria

November 5, 2026

First Posted (Actual)

November 12, 2026

Study Record Updates

Last Update Posted (Actual)

November 12, 2026

Last Update Submitted That Met QC Criteria

November 5, 2026

Last Verified

November 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

he individual participant data will not be shared outside the host institution to maintain patient confidentiality and comply with institutional privacy protocols.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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