Testing of iodine solution to fight bacteria in unsuccessfully treated root canals

ISRCTN ISRCTN34453184
DOI https://doi.org/10.1186/ISRCTN34453184
Secondary identifying numbers SR23001648
Submission date
12/04/2024
Registration date
18/04/2024
Last edited
18/04/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Oral inflammatory diseases encompass a wide range of conditions, particularly apical periodontitis. This type of infection is caused by bacterial biofilm communities adhering to canal walls. Effective management through root canal therapy focuses on eradicating existing infections and preventing bacterial re-infection of the pulp space and surrounding tissues. Success in treatment relies heavily on understanding the microbiological characteristics of apical periodontitis and implementing thorough cleaning, shaping, and irrigation techniques to reduce bacterial load within the root canal system.

The study aims to enhance our understanding of the importance of chemomechanical preparation in endodontic treatment specifically the final irrigation phase. Consequently, maximize the treatment outcomes quality, oral health and patient satisfaction.

Who can participate?
This investigation included patients aged between 18 and 65 years who were referred to the Endodontic Department during the study period because of the presence of apical lesions. The patients also should have signs of asymptomatic periapical periodontitis such as minor percussion pain, or large untreated caries or fractures of the root/crown on one or more maxillary or mandibular anterior (central, lateral and premolar). These patients were radiographed to ensure the existence of periapical lesions <5*5mm.

What does the study involve?
The applied treatments included first Sodium hypochlorite (NaOCl) then the Iodine-Potassium Iodide (IKI) Solution. Two concentrations of IKI were used: 2% and 5%. In the control group, only Sodium hypochlorite (No IKI Solution) was applied.

All samples underwent immediate processing in a specialized laboratory within one hour of collection. The samples were plated onto nutrient agar plates and incubated for 48h at 37°C in aerobic conditions, followed by counting colonies. Monitor of the healing of apical periodontitis radiographically for 12 months.

What are the possible benefits and risks of participating?
Not provided at time of registration

Where is the study run from?
The research was performed in the Endodontic Department at Damascus University, Syria

When is the study starting and how long is it expected to run for?
January 2022 to August 2024

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Meerna SARKEES
mirna2.sarkis@damascusuniversity.edu.sy

Contact information

Dr Meerna SARKEES
Public, Scientific, Principal Investigator

Mahata street
Homs
-
Syria

ORCiD logoORCID ID 0000-0001-6290-5057
Phone +963 955103481
Email mirna2.sarkis@damascusuniversity.edu.sy

Study information

Study designSingle-centre interventional double-blinded randomized parallel clinical trial
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Dental clinic
Study typeTreatment, Efficacy
Participant information sheet Not available in web format, please use contact details to request a participant information sheet.
Scientific titleEvaluation of the efficacy of iodine potassium iodide IKI irrigating solution in endodontic treatment (in-vivo bacteriologic and radiographic study)
Study objectivesIodine potassium iodide has an antibacterial effect makes it suitable as a final irrigation solution in the single-visit treatment of teeth with periapical lesions
Ethics approval(s)

Approved 29/01/2022, The Biomedical Research Ethics Committee (BMREC) of Damascus University (Damascus University, Mazzeh Highway, Damascus, -, Syria; +963 1133923192; sdg@damascusuniversity.edu.sy), ref: DN-290122-18

Health condition(s) or problem(s) studiedSingle-rooted teeth with periapical lesions
InterventionThe applied treatments included first Sodium hypochlorite (NaOCl) then the Iodine-Potassium Iodide (IKI) Solution. Two concentrations of IKI were used: 2% and 5%. In the control group, only Sodium hypochlorite (No IKI Solution) was applied.
Teeth were allocated, using the simple randomization method, into three groups at a ratio of 1:1:1 depending on the IKI utilized concentration. Patients were asked to randomly select an envelope from a batch of 15 opaque, sealed envelopes per study group, each containing cards with varying final irrigation solutions.
Intervention typeOther
Primary outcome measureBacterial count was determined by culturing the samples on nutrient agar plates for 48h at 37°C in aerobic conditions, followed by counting colonies.
Secondary outcome measuresMonitor the healing of apical periodontitis radiographically for 12 months
Overall study start date29/01/2022
Completion date31/08/2024

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants90
Total final enrolment90
Key inclusion criteria1. Age between 18 and 65 years
2. Patients were referred to the Endodontic Department with the presence of apical lesions.
3. The patients with signs of asymptomatic periapical periodontitis such as minor percussion pain, or large untreated caries or fractures of the root/crown on one or more maxillary or mandibular anterior (central, lateral and premolar).
4. Periapical lesions <5*5mm which were verifier radiographed.
Key exclusion criteria1. Presence of systemic diseases that compromised general immune status
2. Pregnant females
3. Patients with preoperative anxiety
4. Patients who received antibiotic therapy within the past 3 months
5. Open-apex teeth
6. Teeth with multicanals,
7. Internal or external resorptions
8. Patients with advanced periodontitis (more than 5mm periodontal attachment and bone loss)
9. Teeth that were unsuitable for single-visit treatment, containing moist canals with exudation or pus.
Date of first enrolment01/05/2022
Date of final enrolment03/08/2023

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Department of Endodontics, Faculty of Dentistry
Fayez Mansour Street
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Fayez Mansour Street
Damascus
-
Syria

Phone +963 1133923192
Email sdg@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date31/08/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from (mirna2.sarkis@damascusuniversity.edu.sy)

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file 18/04/2024 No No

Additional files

45314 protocol.pdf

Editorial Notes

18/04/2024: Trial's existence confirmed by Damascus University.