Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ENROLLING_BY_INVITATION
NA
156 participants
INTERVENTIONAL
2023-08-07
2026-12-31
Brief Summary
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Detailed Description
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Aims and Objectives:
1. To compare the clinical outcome of single-cone bioceramic obturation (SBO) with warm vertical compaction (WVC) in primary root canal treatment.
2. To compare the radiographic outcome of SBO and WVC using periapical (PA) radiographs and cone-beam computed tomography (CBCT).
Materials and Methods:
Patients referred for primary root canal treatment of molar teeth at Jaber Al-Ahmed Dental Center who fulfil the inclusion and exclusion criteria will be invited to participate. Written informed consent will be obtained from all participants.
Preoperative PA radiographs and CBCT scans will be taken. After completion of root canal instrumentation, participants will be randomly allocated to either Group A: SBO or Group B: WVC. Participants will be blinded to the obturation technique. Allocation will remain concealed until canals are ready for obturation, at which time the treating clinician will be informed of the assigned method.
All teeth will receive definitive restorations following obturation. Participants will be recalled at 12 months for clinical and radiographic evaluation using PA radiographs and CBCT, and will subsequently be followed annually for up to 4 years.
The study will conform to the CONSORT statement and will be conducted in accordance with the Declaration of Helsinki. Ethical approval has been granted by the local health authority (ID: 2291).
Statistical and Analytical Plan:
Sample size estimation for the primary healing outcome was performed using PASS (NCSS, Kaysville, UT, USA). Burns et al. (2022) reported pooled healing rates of approximately 92-93% under loose criteria and 82% under strict criteria in primary NSRCT, indicating that reductions on the order of 10-12 percentage points are clinically meaningful. Based on these data, an absolute 12% difference (0.99 vs 0.87) was considered clinically important.
Using a two-sided test comparing two independent proportions, with 80% power and 5% significance level, detecting this 12% absolute difference required 108 teeth (54 per group). Accounting for a 30% anticipated loss to follow-up, the required sample size is 156 teeth (78 per group).
Healing at 12 months will serve as the dependent variable in logistic regression models. Predictor variables will include age, sex, preoperative status, presence of apical periodontitis, preoperative pain, patency, apical preparation size, root filling quality, and sealer type. Two-way interactions will be assessed. Analyses will follow the intention-to-treat principle.
Null Hypothesis:
H₀: There is no difference between SBO and WVC in clinical or radiographic healing outcomes at 12 months.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
TRIPLE
Since it is not possible to blind the care providers, they will only be informed of the type of treatment once cleaning and shaping has been completed and the tooth is ready to be obturated. This will reduce care provider bias.
Assessors will be blinded to the treatment option to reduce bias during the assessment of healing.
Study Groups
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SBO with AH Plus Bioceramic Sealer
The teeth will be obturated using a single cone technique with AH Plus Bioceramic Sealer.
AH Plus Bioceramic Sealer
A bioactive, calcium silicate-based sealer will be used in combination with the core root canal filling material (gutta-percha). It's premixed and is dispensed in the root canal via a fine disposable syringe.
WVC with resin-based AH Plus Sealer
The teeth will be obturated using warm vertical compaction with resin-based AH Plus Sealer.
AH Plus Sealer (resin-based)
A resin-based sealer will be used in combination with the core root canal material (gutta-percha). It consists of two pastes that are mixed together in equal amounts prior to application.
Interventions
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AH Plus Bioceramic Sealer
A bioactive, calcium silicate-based sealer will be used in combination with the core root canal filling material (gutta-percha). It's premixed and is dispensed in the root canal via a fine disposable syringe.
AH Plus Sealer (resin-based)
A resin-based sealer will be used in combination with the core root canal material (gutta-percha). It consists of two pastes that are mixed together in equal amounts prior to application.
Eligibility Criteria
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Inclusion Criteria
* Participants must have a classification of I or II on the American Society of Anesthesiologists (ASA) physical status classification system
* Participants must not have known allergies to any materials used in the study
* Participants must agree to participate in the study by signing a consent form
* Participants must have good oral hygiene
* Maxillary and mandibular permanent molar teeth that require primary root canal treatment will be included
* The teeth must be restorable and have fully formed roots with no advanced periodontal disease
Exclusion Criteria
* Pregnant or breastfeeding women
* Patients who are unable to give consent
* Patients who have advanced periodontal disease or teeth with more than 5mm probing
* Anterior, premolar and third molar teeth
* Teeth whose apices were over-enlarged at the time of pulp extirpation
* Teeth with broken instruments
* Teeth with blocked or non-negotiable canals
* Teeth with iatrogenic perforations
* Teeth with incomplete root formation
* Teeth with internal or external root resorption
* Teeth that have a poor restorative prognosis
* Teeth that require posts or extensive prosthetic rehabilitation
* Teeth with cracks
* Teeth that have been previously root-filled
18 Years
65 Years
ALL
Yes
Sponsors
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Kuwait Institute for Medical Specialization
OTHER_GOV
Ministry of Health, Kuwait
OTHER_GOV
Responsible Party
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Ahmed Aldowaisan
Principal Investigator, Specialist in Endodontics
Locations
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Jaber Al-Ahmed Dental Center
Janūb as Surrah, Hawalli Governate, Kuwait
Countries
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Other Identifiers
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2291
Identifier Type: -
Identifier Source: org_study_id