NCT07332936

Brief Summary

The goal of this prospective clinical study was to evaluate and compare the short-term effects of two intracanal medicaments-calcium hydroxide and a tobramycin-dexamethasone combination (Tobradex)-on postoperative pain following emergency root canal treatment in adult patients with symptomatic irreversible pulpitis. The main question it aimed to answer was: Does Tobradex reduce postoperative endodontic pain more effectively than calcium hydroxide within the first 48 hours after emergency root canal treatment? Adult patients presenting with acute dental pain and already receiving emergency root canal therapy as part of their routine clinical care were included. After canal debridement, patients received either calcium hydroxide or Tobradex as an intracanal medicament based on availability at the time of treatment. Participants reported their pain intensity using a numeric rating scale before treatment and again at 24 and 48 hours following the procedure. Pain outcomes were compared between groups, and the influence of demographic factors such as age and gender was also explored.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
43

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2023

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2023

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2024

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

December 30, 2025

Completed
13 days until next milestone

First Posted

Study publicly available on registry

January 12, 2026

Completed
Last Updated

January 13, 2026

Status Verified

January 1, 2026

Enrollment Period

1 year

First QC Date

December 30, 2025

Last Update Submit

January 10, 2026

Conditions

Keywords

Intracanal medicationCalcium HydroxideTobradexPainRoot canal treatment

Outcome Measures

Primary Outcomes (1)

  • Postoperative endodontic pain intensity

    Pain intensity measured using a numeric rating scale (0-10) at baseline, 24 hours, and 48 hours following intracanal medicament placement.

    Baseline to 48 hours post-treatment

Study Arms (2)

Tobramycin-Dexamethasone (Tobradex)

EXPERIMENTAL

Participants receive a tobramycin-dexamethasone combination (Tobradex) as an intracanal medicament following standardized emergency root canal treatment for symptomatic irreversible pulpitis.

Drug: Tobramycin + Dexamethasone

Calcium Hydroxide

ACTIVE COMPARATOR

Participants receive calcium hydroxide as an intracanal medicament following standardized emergency root canal treatment for symptomatic irreversible pulpitis.

Drug: Calcium Hydroxide (Ca(OH)2)

Interventions

Calcium hydroxide is placed as an intracanal medicament after canal debridement during emergency root canal treatment as part of routine clinical practice.

Calcium Hydroxide

Tobramycin-dexamethasone (Tobradex) is placed as an intracanal medicament after canal debridement during emergency root canal treatment to reduce postoperative inflammation and pain.

Tobramycin-Dexamethasone (Tobradex)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults aged 18 years or older
  • Patients presenting with acute dental pain diagnosed as symptomatic irreversible pulpitis
  • Teeth requiring emergency root canal treatment
  • Ability to understand and provide informed consent
  • Willingness to report pain levels during the follow-up period

You may not qualify if:

  • Presence of acute or chronic apical abscess requiring systemic antibiotic therapy
  • Teeth with previous root canal treatment
  • Patients with systemic conditions that may affect healing or pain perception (e.g., uncontrolled diabetes, immunocompromised status)
  • Known allergy or hypersensitivity to calcium hydroxide, tobramycin, dexamethasone, or related compounds
  • Pregnant or lactating women

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Dental Medicine, Umm Al-Qura University

Mecca, Saudi Arabia

Location

Related Publications (1)

  • Alhilou AM, Al-Moraissi EA, Bakhsh A, Christidis N, Nasman P. Pain after emergency treatments of symptomatic irreversible pulpitis and symptomatic apical periodontitis in the permanent dentition: a systematic review of randomized clinical trials. Front Oral Health. 2023 Oct 18;4:1147884. doi: 10.3389/froh.2023.1147884. eCollection 2023.

MeSH Terms

Conditions

Pain

Interventions

Calcium HydroxideTobramycin, Dexamethasone Drug Combination

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

HydroxidesAlkaliesInorganic ChemicalsCalcium CompoundsAnionsIonsElectrolytesDexamethasonePregnadienetriolsPregnadienesPregnanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSteroids, FluorinatedTobramycinNebramycinKanamycinAminoglycosidesGlycosidesCarbohydratesDrug CombinationsPharmaceutical Preparations

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

December 30, 2025

First Posted

January 12, 2026

Study Start

July 1, 2023

Primary Completion

June 30, 2024

Study Completion

June 30, 2024

Last Updated

January 13, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Individual participant data collected during this study will not be shared publicly. Aggregate, de-identified results will be reported through publications and presentations.

Locations