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Effect of Preoperative Diclofenac Potassium Dose on Endodontic Pain

Effect of Diclofenac Potassium Premedication Dose on Anesthetic Success and Post-operative Pain in Mandibular Molars With Symptomatic Irreversible Pulpitis: A Randomized Controlled Trial

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07743372
Enrollment
90
Registered
2026-08-03
Start date
2026-08-01
Completion date
2028-02-01
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Symptomatic Irreversible Pulpitis (SIP)

Brief summary

The aim of this study is to assess the effect of different doses of diclofenac potassium premedication (100mg vs 50mg) on anesthetic success of 4% articaine buccal infiltration and post-operative pain as compared to placebo in mandibular molars with symptomatic irreversible pulpitis.

Detailed description

Patients with moderate-to-severe preoperative pain are selected. Patients receive either a single-dose of diclofenac potassium (100mg), diclofenac potassium (50mg) alone or a placebo tablet as a control. All patients will receive the assigned premedication one hour before single-visit root canal treatment. Anesthetic success of articaine buccal infiltration will be assessed during access and instrumentation. Postoperative endodontic pain is measured at the following time points: 6,12,24,48,72h and 7 days after treatment.

Interventions

DRUGDiclofenac potassium 100mg

Preoperative single dose of diclofenac potassium 100mg

DRUGDiclofenac potassium 50mg

Preoperative single dose of diclofenac potassium 50mg

DRUGPlacebo

Preoperative placebo

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with symptomatic irreversible pulpitis. * Patients with moderate to severe pain. * Mandibular molars * Patients with the ability to understand and use the pain scale

Exclusion criteria

* Patients allergic to any medication or material to be used in the study. * Pregnant and lactating females. * Patients taking medications affecting pain perception in the last 12 hours. * Patients having more than one symptomatic molar in the same quadrant. * Patients with contributory medical history (ASA I or II).

Design outcomes

Primary

MeasureTime frameDescription
Anesthetic success of articaine buccal infiltrationDuring the treatmentWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain". Success will be defined as no to mild pain.

Secondary

MeasureTime frameDescription
Postoperative pain at 6 hours6 hoursWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain"
Postoperative pain at 12 hours12 hoursWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain"
Postoperative pain at 24 hours24 hoursWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain"
Postoperative pain at 48 hours48 hoursWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain"
Postoperative pain at 72 hours72 hoursWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain"
Postoperative pain at 7 days7 daysWill be recorded by 11 point NRS consisting of numbers from 0 through 10. 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain" 0: reading represents "no pain" 1-3 : readings represent "mild pain" 4-6 : readings represent "moderate pain" 7-10 : readings represent "severe pain"

Contacts

CONTACTAmeena K Bagunaid
ameena.omar@dentistry.cu.edu.eg00201017200542

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 4, 2026