Evaluation of Postoperative Pain and the Antimicrobial Effect of Super Oxidized Water (Microcyn) and Chlorhexidine When Compared With Sodium Hypochlorite in Teeth With Asymptomatic Necrotic Pulps. A Randomized Clinical Trial (NRS)

September 25, 2026 updated by: Paunceh Samy Hassan Soliman, Cairo University

Evaluation of Postoperative Pain and the Antimicrobial Effect of Super Oxidized Water (Microcyn) and Chlorhexidine When Compared With Sodium Hypochlorite in Teeth With Asymptomatic Necrotic Pulps A Randomized Clinical Trial

The objective of this study is to evaluate the postoperative pain and antimicrobial efficacy when using super-oxidized water (Microcyn) and 2% Chlorhexidine as irrigating solutions in comparison to 2.5% Sodium hypochlorite in teeth with asymptomatic necrotic pulps.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The objective of this study is to evaluate the postoperative pain and antimicrobial efficacy when using super-oxidized water (Microcyn) and 2% Chlorhexidine as irrigating solutions in comparison to 2.5% Sodium hypochlorite in teeth with asymptomatic necrotic pulps.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
75

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Egypt
    • Cairo Governorate
      • Cairo, Cairo Governorate, Egypt, 11553

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 50 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients in good physical health; American Society of Anesthesiologists (ASA) class I or II.
  • Patients whose age ranges between 18 and 50 years.
  • Male and female patients.
  • Patients having a single canal-tooth with asymptomatic necrotic pulp.
  • Patients who can understand the number rating scale.
  • Patients who accept to participate in the trial and can sign the informed consent

Exclusion Criteria:

  • Pregnant females.
  • Patients with intraoral or extraoral swelling.
  • Patients whose tooth is non-restorable.
  • Teeth with open apices.
  • Teeth with radiographic evidence of root resorption.

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: Factorial Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Group A

Each canal will receive 2ml of super-oxidized water (Microcyn) irrigating solution between each instrument size and the subsequent one.
Other: super-oxidized water (Microcyn) irrigating solution

The difference in concentration of chlorine between NaOCl and super oxidized water such that the concentration of chlorine ions in NaOCl is much higher than that in super-oxidized water. However, considering the 90% reduction in biofilm thickness and 98% reduction in colony count of microorganisms by super-oxidized water as demonstrated
Active Comparator: Group B

Each canal will receive 2ml of 2% chlorhexidine irrigating solution between each instrument size and the subsequent one.
Other: 2% chlorhexidine irrigating solution

Chlorhexidine (CHX) has been indicated as an alternative irrigation agent in the preparation of the root canal system, due to its broad-spectrum antimicrobial capacity, dentin tubule disinfection, dentin adsorption, high substantivity, and low toxicity compared to NaOCl. The inability to dissolve organic tissues of the CHX provides controversial in the use of this irrigant, and due to this limitation, some authors do not indicate it as the main irrigation solution in endodontic treatment despite its utility as a final irrigation solution.
Active Comparator: Group C

Each canal will receive 2ml of 2.5 % sodium hypochlorite irrigating solution between each instrument size and the subsequent one.
Other: 2.5% sodium hypochlorite

Sodium hypochlorite (NaOCl) is the most common and has been widely used in endodontics for more than 70 years because of its ability to act as a solvent for organic matter and its efficient antimicrobial action, however, at high concentrations, it is likely to irritate periradicular tissues.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Postoperative pain intensity at 6 hours post-instrumentation
Time Frame: 6 hours post-instrumentation

A pain chart using numerical rating scale (NRS) will then be used to record the patients' pain level.

The NRS (0-10 scale) consists of a line anchored by two extremes "No pain" and "the worst pain".

Patients will be asked to choose the mark that represented their level of pain from 0 to 10. Pain level will be assigned as follow: 0: no pain, 1-3: mild pain, 4-6: moderate pain, 7-10: severe pain.
6 hours post-instrumentation

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cairo University

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 2, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 2, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 2, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 25, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 25, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 1, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 1, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 25, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Paunceh samy

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

There is no plan to share individual participant data (IPD) with other researchers due to participant confidentiality and privacy considerations.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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