Evaluation of non-instrumentation endodontic treatment in necrotic primary molars using a modified mixture of three antibiotics with simvastatin

ISRCTN ISRCTN12940165
DOI https://doi.org/10.1186/ISRCTN12940165
Secondary identifying numbers 2851
Submission date
07/08/2021
Registration date
13/09/2021
Last edited
04/10/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
The aim of this study is to evaluate the success rate of non-instrumentation endodontic treatment using a modified antibiotic paste of cefexime, ciprofloxacin and metronidazole with simvastatin (an anti-inflammatory, bone regeneration drug) on necrotic (dead) primary molars compared to traditional pulpectomy (complete removal of the pulp of the teeth).

Who can participate?
Children aged 4-8 years old with necrotic primary second lower molars

What does the study involve?
Participants will be randomly divided into two groups to be treated with antibiotics in non-instrumentation endodontic treatment or conventional root canal treatment. All the teeth will be evaluated after 1, 3, 6, and 12 months clinically and 3, 6, and 12 months radiologically (x-ray).

What are the possible benefits and risks of participating?
Because of the complexity of the root canal system in primary molars, long or multiple visits are needed to complete pulpectomy treatment, especially with non-cooperative children. Non-instrumentation endodontic treatment seems to be a good alternative choice to traditional pulpectomy as it's an easier and less time-consuming treatment.

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

When is the study starting and how long is it expected to run for?
March 2018 to January 2021

Who is funding the study?
Damascus University (Syria)

Who is the main contact?
Dr Walaa Almarji
walaa.marji92@damascusuniversity.edu.sy

Contact information

Dr Walaa Almarji
Scientific

Dental College
Damascus University
Al-Mazzeh Street
Damascus
97009
Syria

ORCiD logoORCID ID 0000-0003-4384-9621
Phone +963 (0)967324771
Email walaa.marji92@damascusuniversity.edu.sy

Study information

Study designSingle-centre interventional double-blinded randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Patient information sheet in Arabic: https://drive.google.com/file/d/1FiNwH5tskC1Ycgvjg468fXKny86a3gl2/view?usp=sharing
Scientific titleClinical and radiological evaluation of modified triple antibiotic paste and simvastatin in non-instrumentation endodontic treatment of necrotic mandibular primary molars: a randomised controlled clinical trial
Study acronym3Mixtatin in NIET
Study objectivesThis study is designed to assess the hypothesis that non-instrumentation endodontic treatment with 3mixtatn can be a good alternative treatment to traditional pulpectomy of necrotic primary molars.
Ethics approval(s)Approved 08/07/2018, Damascus University, Faculty of Dentistry (University of Damascus Dental School, Damascus, Syria; +96390404840; Osama.aljabban@gmail.com), ref: none provided
Health condition(s) or problem(s) studiedNecrotic primary molars
InterventionForty-two necrotic mandibular primary second molars from healthy children aged 4-8 years will be randomly divided into two groups using http://www.randomization.com:
Group A: teeth will be treated with 3mixtatin in non-instrumentation endodontic treatment
Group B: teeth will be treated with conventional root canal treatment

After local anesthesia using mepivicaine hydrochloride 3%, each tooth will be isolated using the rubber dam. The carious lesions will be removed and the access cavity will be prepared with a bur in a high-speed handpiece. In group A the canal orifices will be enlarged with a round bur (1 mm diameter and 2 mm depth). The pulp chamber and the canal orifices will be irrigated with 17% EDTA to remove the smear layer and the dentin permeability increased with chemical solutions and then with physiological serum, followed by irrigation with 10 ml 5.25% sodium hypochlorite to remove the necrotic tissues, then irrigated with physiological serum and finally with chlorhexidine gluconate 0.2%.

This irrigation protocol will be administered in both two groups.

3Mixtatin preparation:
The three commercially available antibiotics metronidazole, cefixime and ciprofloxacin will be mixed in a ratio of 1:1:1 with 2 mg of simvastatin after removing the coating materials and pulverized by porcelain mortars and pestles. The 3Mixtatin will be mixed with propylene glycol to obtain a creamy mix and placed over the canal orifices and the pulpal floor. The tooth will be sealed with a glass ionomer cement and then restored with a stainless steel crown.

In group B conventional root canal treatment will be done using k-files and h-files and using the previously mentioned irrigation protocol in group A.

The root canals will be dried with paper points and obturate with zinc oxide eugenol paste using a Lentulo spiral in a low-speed handpiece. The tooth will be sealed with a glass ionomer cement and then restored with a stainless steel crown.
All procedures will be administered by a pediatric dentist.
All the teeth will be evaluated after 1, 3, 6, and 12 months clinically and 3, 6, and 12 months radiologically.
Intervention typeProcedure/Surgery
Primary outcome measureClinical success criteria measured by two external examiners at baseline (T0) directly after the treatment, 1 month (T1), 3months (T2), 6 months (T3), and 12 months (T4):
1. Absence of fistula detected visually
2. Absence of painful symptoms measured using The Universal Pain Assessment Tool (UPAT)
3. Absence of pathological tooth mobility assessed by applying alternate pressure on the outer and inner aspects of the crown of the tooth using two hand instruments. The results were recorded using a mobility index.
4. Intact gingival contour detected by palpation

Radiographic success criteria measured at baseline (T0), 3 months (T1), 6 months (T2), and 12 months after treatment (T3):
1. Resolution of furication lesion radiolucency analysed on the follow-up radiographs using (Imagej)(fiji) 2019 software
2. Absence of pathological bone resorption assessed by detecting any new radiolucency on radiographs
3. Absence of pathological root resorption analysed on the follow-up radiographs using (Imagej)(fiji) 2019 software
Secondary outcome measuresThe duration of treatment in each group, recorded directly after the treatment
Overall study start date05/03/2018
Completion date15/01/2021

Eligibility

Participant type(s)Patient
Age groupChild
Lower age limit4 Years
Upper age limit8 Years
SexBoth
Target number of participants44
Total final enrolment44
Key inclusion criteria1. Child aged 4-8 years old with no systemic diseases
2. Necrotic primary second lower molars with signs or symptoms of loss of vitality: buccal swelling or sinus, pathological mobility, bifurcation or periapical radiolucency, pathological root resorption
Key exclusion criteria1. Non-restorable teeth
2. Excessive root resorption involving more than half of the root
3. Perforation of the pulpal floor
4. Facial cellulitis cases
5. Noncooperative patient
6. Patient with history of allergy to one of the used drugs
7. Patient with systemic disease
Date of first enrolment05/09/2018
Date of final enrolment18/05/2020

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Faculty of Dentistry
Al-Mazzeh Street
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Dental College
Al-Mazzeh Street
Damascus
97009
Syria

Phone +963 (0)11 33923000
Email president@damasuniv.edu.sy
Website http://damasuniv.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 date31/12/2021
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryOther
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal. The study protocol and statistical analysis plan aren't available yet.
IPD sharing planThe datasets generated and/or analysed during the current study during this study will be included in the subsequent results publication.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 01/04/2024 04/10/2024 Yes No

Editorial Notes

04/10/2024: Publication reference added.
09/09/2021: Trial's existence confirmed by Damascus University.