This Study Aims to Clinically Assess and Radiographically Measure the Formed Dentin Bridge Over the Pulp, Utilizing Three-dimensional Imaging Following the Application of a Bioactive Restorative System Versus a Conventional Restorative System After Selective Caries Removal to Soft Dentin Over 2

NCT ID: NCT07171775

Last Updated: 2026-01-21

Study Results

Results pending

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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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-06-01

Study Completion Date

2028-06-01

Brief Summary

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This clinical trial aims to evaluate dentin bridge formation over the pulp following selective caries removal in permanent teeth with deep carious lesions (ICDAS scores 5-6). A total of 66 patients will be enrolled and randomly allocated to receive either a bioactive restorative system (bioactive universal adhesive combined with a bioactive bulk-fill resin composite) or a conventional non-bioactive restorative system. Clinical assessments, including pulp sensibility testing and patient-reported pain evaluation, together with three-dimensional radiographic analysis using cone beam computed tomography, will be conducted to assess the thickness and quality of reparative dentin bridge formation. Outcomes will be evaluated at baseline and during follow-up periods extending up to 24 months to compare the effectiveness of both restorative approaches in preserving pulp sensibility and promoting dentin-pulp complex repair.

Detailed Description

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This randomized controlled clinical trial is designed to evaluate the clinical and radiographic outcomes of a bioactive restorative system compared with a conventional restorative system following selective caries removal in permanent molars with deep carious lesions (ICDAS scores 5-6).

A total of 66 eligible patients will be recruited according to predefined inclusion and exclusion criteria and randomly allocated into two parallel groups. After selective removal of carious dentin to soft dentin, cavities will be restored using either a bioactive restorative system (bioactive universal adhesive combined with bioactive bulk-fill resin composite) or a non-bioactive restorative system (conventional universal adhesive and bulk-fill resin composite).

Clinical assessments will include evaluation of pulp sensibility and patient-reported pain, while radiographic assessment of dentin bridge formation-regarding presence, thickness, and quality-will be performed using three-dimensional cone beam computed tomography. Outcomes will be evaluated at baseline and during follow-up periods extending up to 24 months to compare the effectiveness of both restorative approaches in preserving pulp vitality and promoting dentin-pulp complex repair

Conditions

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Deep Carious Lesions Partial Caries Removal Dentin Bridge

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors
This is a double-blinded trial: participants and outcome assessors/analysts will be blinded to treatment allocation. The operator (E.H.) cannot be blinded due to differences in handling and placement of the two materials

Study Groups

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Bioactive Restorative System

Experimental Group (Bioactive Restorative System):

Group Type EXPERIMENTAL

Experimental - Bioactive Restorative System

Intervention Type PROCEDURE

Following selective caries removal to soft dentin, the cavity will be restored using a bioactive restorative system consisting of a bioactive universal adhesive followed by placement of a bioactive bulk-fill resin composite.

Conventional Restorative System

Control Group (Conventional Restorative System)

Group Type ACTIVE_COMPARATOR

Active Comparator -Conventional Restorative System

Intervention Type PROCEDURE

Following selective caries removal to soft dentin, the cavity will be restored using a conventional universal adhesive system followed by placement of a bulk-fill resin composite

Interventions

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Experimental - Bioactive Restorative System

Following selective caries removal to soft dentin, the cavity will be restored using a bioactive restorative system consisting of a bioactive universal adhesive followed by placement of a bioactive bulk-fill resin composite.

Intervention Type PROCEDURE

Active Comparator -Conventional Restorative System

Following selective caries removal to soft dentin, the cavity will be restored using a conventional universal adhesive system followed by placement of a bulk-fill resin composite

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

Patient-related criteria:

1. Adult patients (age: 18-40 years) of both genders.
2. Good oral hygiene.
3. Willing to sign the informed consent.
4. Cooperative patients who accept the follow-up period.

Tooth-related criteria:

1. Posterior permanent caries (ICDAS 5-6).
2. Radiographically, caries is extending 50% of dentine with a radiopaque layer between the carious lesion and the pulp chamber.
3. Sensitive teeth according to the cold pulp test.
4. Negative response in percussion test.

Exclusion Criteria

Patient-related criteria:

1. Allergy to any of the restorative materials.
2. Patients undergoing orthodontic treatment with fixed appliances.
3. Pregnant women.
4. Patients with debilitating systemic diseases.
5. Patient who frequently uses analgesics or any drugs that could mask the pain.

Tooth-related criteria:

1. Teeth with previous restorations.
2. Spontaneous pain or prolonged pain (more than 15 s) after the sensitivity test (cold test), which would indicate irreversible pulpitis.
3. Negative sensibility tests, periapical radiolucency, and sensitivity to axial or lateral percussion.
4. Mobile teeth, indicating periodontal disease or trauma.
5. External or internal resorption.
6. Chipped teeth or Cuspal loss
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cairo University

OTHER

Sponsor Role lead

Responsible Party

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Esraa Hamdy Saber Mohamed

Assistant lecturer

Responsibility Role PRINCIPAL_INVESTIGATOR

Central Contacts

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Esraa Hamdy Saber E.H. Assistant lecturer, PhD

Role: CONTACT

(+2) 01010200882

Other Identifiers

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CU-2025-09

Identifier Type: -

Identifier Source: org_study_id

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