NCT07394751

Brief Summary

The aim of this clinical study is to evaluate the performance of three different bioactive restorative materials against a composite resin for a period of 9 months. This randomized, split-mouth, single-center trial was performed on patients having occlusal caries (ICDAS 3 and 4) in both molars of the same jaw. The restorative materials used were Tetric N-Ceram Bulk-fill (control, Ivoclar Vivadent, Liechtenstein), Stela (SDI, Australia), Cention Forte (Ivoclar) and Activa BioActive Restorative (Pulpdent, USA). The restorations were evaluated at baseline, 3-6 and 9-month according to FDI-2 criteria, in terms of functional, biological, and aesthetic parameters, by two experienced evaluators.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
6mo left

Started Nov 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress76%
Nov 2024Nov 2026

Study Start

First participant enrolled

November 1, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2025

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

January 30, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

February 6, 2026

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2026

Expected
Last Updated

February 6, 2026

Status Verified

February 1, 2026

Enrollment Period

5 months

First QC Date

January 30, 2026

Last Update Submit

February 5, 2026

Conditions

Keywords

Bioactive Restorative MaterialsDental RestorationsClinical trialFDI-2 criteria

Outcome Measures

Primary Outcomes (1)

  • FDI-2 evaluation criteria for functional properties

    Clinical evaluations were conducted using the FDI-2 criteria by two experienced, calibrated, and blinded evaluators for functional properties (category F). fracture/displacement of the material, marginal adaptation, form and contour, occlusion, and wear) were scored. Scores of 1-3 indicate clinically acceptable and successful restorations, score 4 indicates clinically inadequate but repairable defects, and score 5 represents clinically unacceptable restorations.

    2 years

Secondary Outcomes (1)

  • FDI-2 evaluation criteria for biological properties

    2 years

Other Outcomes (1)

  • FDI-2 evaluation criteria for aesthetic properties

    2 years

Study Arms (4)

Tetric N-Ceram BulkFill

ACTIVE COMPARATOR

Tetric N-Ceram Bulkfill application (control group; device 1) was randomly applied to patients.

Procedure: Tetric N Ceram Bulkfill application

Cention Forte

ACTIVE COMPARATOR

Cention Forte was randomly applied to patients.

Procedure: Cention Forte application

Stela Automix

ACTIVE COMPARATOR

Stela automix was randomly applied to patients.

Procedure: Stela Automix

Activa BioActive Restorative

ACTIVE COMPARATOR

Activa BioActive Restorative was randomly applied to patients.

Procedure: Activa BioActive Restorative

Interventions

Selective enamel etching was performed with 37% phosphoric acid followed by a universal adhesive system application to all cavity surfaces and LED cured. The bulk-fill composite resin was placed in a single increment according to the manufacturer's recommendations and light-cured for 20 seconds. Excess material was removed using flame-shaped diamond finishing burs. Occlusion was assessed with articulation paper, and premature or undesirable contact points were adjusted as necessary.

Tetric N-Ceram BulkFill

A drop of Cention Primer was mixed in its wheel for 5 seconds and actively applied to the cavity for 10 seconds, followed by gentle air-drying. The Cention Forte capsule was then mixed for 15 seconds in a capsule mixer and placed in bulk into the prepared cavity using the manufacturer's delivery gun. Light curing was performed for 20 seconds with an LED unit (1300 mW/cm²; ZenoLite, President, Germany). Excess material was removed using flame-shaped diamond finishing burs. Occlusion was assessed with articulation paper, and any premature or undesirable contact points were adjusted accordingly. Final polishing was performed with OptraGloss polishing wheels (Ivoclar Vivadent) for 20 seconds.

Cention Forte
Stela AutomixPROCEDURE

Stela Primer was applied to the cavity surfaces and margins for 10 seconds. After a 5-second waiting period, the primer was gently air-dried for 2-3 seconds. The Stela Automix injector tip was then angled as needed and inserted into the cavity to deliver the material. The restoration was allowed to self-cure for 4 minutes. Occlusion was evaluated using articulation paper, and any premature or undesired contact points were adjusted as necessary. Final polishing was performed with OptraGloss polishing wheels (Ivoclar Vivadent) for 20 seconds.

Stela Automix

Selective enamel etching was performed with 37% phosphoric acid for 15 seconds, followed by thorough rinsing and air-drying. A universal adhesive system (Tetric N-Bond Universal, Ivoclar Vivadent) was applied to all cavity surfaces, including enamel, for 20 seconds, air-thinned, and light-cured for 20 seconds using an LED unit (1300 mW/cm²; ZenoLite, President, Germany). Following the manufacturer's instructions, the placement tip was inserted into the cavity using the dedicated placement gun, and the material was delivered in bulk. Light curing was performed for 20 seconds. Excess material was removed using flame-shaped diamond finishing burs. Occlusion was assessed with articulation paper, and premature or undesirable contact points were adjusted as needed. Final polishing was performed with OptraGloss polishing wheels (Ivoclar Vivadent) for 20 seconds.

Activa BioActive Restorative

Eligibility Criteria

Age20 Years - 34 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Individuals over the age of 16 with permanent dentition
  • Individuals with a total of four vital molar teeth requiring restoration (ICDAS 3-4), two on each side of the same jaw
  • Individuals with posterior contact with antagonist teeth
  • Individuals who are reliable, cooperative, and willing to participate in periodic follow-ups

You may not qualify if:

  • Individuals whose antagonist teeth were missing or have crowns, bridges, etc.
  • Individuals with history of alcohol, drug, or medication addiction.
  • Individuals with pulp exposure during cavity preparation or a cavity depth exceeding 2-4 mm.
  • Individuals known to be unable to attend follow-up appointments.
  • Individuals with allergies to the products used in the procedure.
  • Individuals with severe tooth grinding or bruxism.
  • Individuals with caries conditions classified as ICDAS 5 and 6.
  • Pregnant or breastfeeding individuals and individuals planning pregnancy during the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ege University School of Dentistry

Izmir, Bornova, 35100, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Dental Caries

Interventions

ACTIVA BioACTIVE-RESTORATIVE

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

Study Officials

  • Cankut Canevi, DDS

    Ege University School of Dentistry Department of Restorative Dentistry

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized split mouth study design
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

January 30, 2026

First Posted

February 6, 2026

Study Start

November 1, 2024

Primary Completion

April 1, 2025

Study Completion (Estimated)

November 1, 2026

Last Updated

February 6, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations