Clinical and radiographical outcomes after pulpotomies using mineral trioxide aggregate mixed with distilled water or 2.25% sodium hypochlorite gel

ISRCTN ISRCTN27453183
DOI https://doi.org/10.1186/ISRCTN27453183
Submission date
23/01/2025
Registration date
23/01/2025
Last edited
23/01/2025
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
The reduced working time of MTA might be improved by using different vehicles or additives. NaOCl gel is an additive for MTA that improves its chemical and physical characteristics, enhances its handling and antibacterial properties, and significantly decreases the setting time while maintaining biocompatibility. Thus, this study sought to compare the outcomes of pulpotomies performed in primary teeth using WMTA mixed with 2.25% NaOCl gel or WMTA mixed with DW. The null hypothesis was that the WMTA mixed with 2.25% NaOCl gel did not enhance the clinical and radiographic outcomes compared to WMTA mixed with DW.

Who can participate?
Participants aged between 5 and 10 years who were cooperative and indicated for a pulpotomy treatment on their second primary molars were included in the study.

What does the study involve?
The selected participants, who had 40 second primary molars that required pulpotomy, were randomly assigned to one of two groups (n = 20) according to the pulp dressing material used:
Group 1 (WMTA + NaOCl gel): WMTA (Rootdent, TehnoDent Co., Belgorod, Russia) mixed with 2.25% NaOCl gel (LET’S CLEAN Concentrated Chlorine, DTIC®, Damascus, Syria) was categorized as the interventional group.
Group 2 (WMTA + DW): WMTA combined with DW was designated the control group.

What are the possible benefits and risks of participating?
Participants will benefit from being provided with pulpotomy treatment. However, the risks include receiving painful therapy.

Where is the study run from?
Damascus University (Syria)

When is the study starting and how long is it expected to run for?
January 2024 to January 2025

Who is funding the study?
Damascus University (Syria)

Who is the main contact?
Dr Mawia Karkoutly, mawia95.karkoutly@damascusuniversity.edu.sy, mawiamaherkarkoutly@hotmail.com

Contact information

Dr Mawia Karkoutly
Public, Scientific, Principal Investigator

Mazzeh
Damascus
Nill
Syria

ORCiD logoORCID ID 0000-0003-0227-1560
Phone +963 992647528
Email Mawia95.karkoutly@damascusuniversity.edu.sy

Study information

Study designRandomized triple-blinded single-center split-mouth active-controlled clinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)University/medical school/dental school
Study typeTreatment
Scientific titleClinical and radiographical outcomes after pulpotomies using mineral trioxide aggregate mixed with distilled water or 2.25% sodium hypochlorite gel: a randomized controlled clinical trial
Study objectivesWhite mineral trioxide aggregate (WMTA) mixed with 2.25% sodium hypochlorite (NaOCl) gel will enhance the clinical and radiographic outcomes compared to WMTA mixed with distilled water (DW).
Ethics approval(s)

Approved 12/01/2024, The Biomedical Research Ethics Committee (Mazzeh, Damascus, -, Syria; +963 (11) 33923223; dean.dent@damascusuniversity.edu.sy), ref: 1254/2024

Health condition(s) or problem(s) studiedDental caries
InterventionTwo experienced pediatric dentists (ICC > 0.8) selected 20 participants from 31 who were referred to the Department of Pediatric Dentistry. The selected participants, who had 40 second primary molars that required pulpotomy, were randomly assigned to one of two groups (n = 20) according to the pulp dressing material used:
• Group 1 (WMTA + NaOCl gel): WMTA (Rootdent, TehnoDent Co., Belgorod, Russia) mixed with 2.25% NaOCl gel (LET’S CLEAN Concentrated Chlorine, DTIC®, Damascus, Syria) was categorized as the interventional group.
• Group 2 (WMTA + DW): WMTA combined with DW was designated the control group.
Randomization and blinding
The study was a triple-blinded trial, ensuring that the dentist, participants, and outcome assessors were unaware of the group assignments. A blinded investigator implemented a simple randomization method, using a coin toss for each participant. Subsequently, the second primary molars were allocated at random to either the control group or the intervention group for each participant, using a split-mouth design.

Treatment procedure
A diagnostic periapical radiograph was obtained using an intraoral periapical sensor (i-sensor, Guilin Woodpecker Medical Instrument Co., LTD., Guilin, China). Following the administration of sufficient anesthesia and achieving proper isolation, the decay was excavated, and a coronal pulpotomy was carried out. Hemorrhage was managed by applying a sterile cotton pellet soaked in normal saline and exerting pressure on the pulp stump for 5 minutes. In the control group, WMTA powder was combined with distilled water at a ratio of 3:1, powder-to-liquid, and subsequently, a 3mm thick layer of MTA was applied to the pulp. In the interventional group, WMTA was mixed with a 2.25% NaOCl gel at a 3:1 ratio of powder to gel. A stainless steel crown (SSC) (Kids Crown, Shinhung, Seoul, Korea) was the final restoration and immediately delivered after the treatment. Follow-up Intervals were planned at 3, 6, and 12 months.
Intervention typeProcedure/Surgery
Primary outcome measure1. Spontaneous pain is measured using a visual analog scale (VAS) at baseline, 3 months, 6 months, and 12 months
2. Pain on percussion is measured using a percussion test at baseline, 3 months, 6 months, and 12 months
3. Tooth mobility is measured using the Miller Mobility Index at baseline, 3 months, 6 months, and 12 months
4. Abscesses are measured using clinical examination at baseline, 3 months, 6 months, and 12 months
5. Fistulas are measured using clinical examination at baseline, 3 months, 6 months, and 12 months
6. Exfoliation of the treated tooth is measured using clinical examination at baseline, 3 months, 6 months, and 12 months
7. Furcal radiolucency is measured using periapical radiographic evaluation at baseline, 3 months, 6 months, and 12 months
8. Internal root resorption is measured using periapical radiographic evaluation at baseline, 3 months, 6 months, and 12 months
9. External root resorption is measured using periapical radiographic evaluation at baseline, 3 months, 6 months, and 12 months
10. Widening of the periodontal ligament is measured using periapical radiographic evaluation at baseline, 3 months, 6 months, and 12 months
11. Canal obliteration is measured using periapical radiographic evaluation at baseline, 3 months, 6 months, and 12 months
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date12/01/2024
Completion date22/01/2025

Eligibility

Participant type(s)Healthy volunteer
Age groupChild
Lower age limit5 Years
Upper age limit10 Years
SexBoth
Target number of participants20
Total final enrolment20
Key inclusion criteria1. Participants aged between 5 and 10 years
2. Participants who were cooperative
3. Participants indicated for a pulpotomy treatment on their second primary molars
Key exclusion criteria1. Participants with compromised conditions
2. Participants exhibiting signs and symptoms indicative of pulp necrosis
3. Participants with a history of spontaneous pain in their second primary molars
4. Participants with a history of nocturnal pain in their second primary molars
Date of first enrolment13/01/2024
Date of final enrolment20/01/2024

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Mazzeh
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Mazzeh
Damascus
-
Syria

Phone +963 (11) 33923223
Email dean.dent@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

University/education

Damascus University
Government organisation / Universities (academic only)
Alternative name(s)
University of Damascus, جَامِعَةُ دِمَشْقَ, DU
Location
Syria

Results and Publications

Intention to publish date01/05/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from Mawiamaherkarkoutly@hotmail.com. The type of data that will be shared includes anonymised demographic information that will be available after publication. Consent from participants was required and obtained.

Editorial Notes

23/01/2025: Trial's existence confirmed by Damascus University.