Comparative Evaluation of an Alkasite-based Restorative Material and Two Different Resin Composites

December 2, 2025 updated by: Dr. Fatma Dilşad Öz, Hacettepe University

Comparative Evaluation of an Alkasite-based Restorative Material and Two Different Resin Composites in Non-carious Cervical Lesions

The clinical performance of an an alkasite-based restorative material and two different resin composites will be evaluated and compared in non-carious cervical lesions. After recruiting participants with at least three non-carious cervical lesions, all restorations will be placed by a single clinician. Lesions will be divided in three groups: an alkasite-based restorative material (Cention N, Ivoclar Vivadent, Schaan, Liechtenstein (CN)), hybrid resin composite (Gradia Direct Anterior, GC, Tokyo, Japan (GD)) and a highly filled flowable resin composite ((G-aenial Universal Flo, GC, Tokyo, Japan (GF)). All restorative procedures will be conducted according to manufacturers' instructions. Restorations will be scored using FDI criteria. Descriptive statistics will be performed using chi-square tests.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
33

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age range will be 18 to 65.
  • They will be required to have at least three NCCLs needed restoration in different teeth.
  • All the NCCLs selected will be in similar sizes.

Exclusion Criteria:

  • Patients with severe periodontal disease
  • Patients with rampant, uncontrolled caries
  • Patients with xerostomia
  • Patients with serious medical problems preventing them from attending review visits
  • Patients with poor gingival health
  • Patients with heavy bruxism
  • Patients with removable partial dentures
  • Patients undergoing bleaching treatment or orthodontic treatment

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: an alkasite-based restorative material
Cention N, Ivoclar Vivadent, Schaan, Liechtenstein (CN) The liquid and powder will be mixed and then applied according to manufacturer's instructions.
Device: an alkasite-based restorative material
Cention N
Experimental: hybrid resin composite
Gradia Direct Anterior, GC, Tokyo, Japan (GR) After applying 37% orthophosphoric acid to the enamel of the lesions for 30 seconds and to the dentin for 15 seconds, the acid will be washed with water and then dried with light air. A universal adhesive (G-Premio Bond, GC, Tokyo, Japan) and then the composite will be applied according to the manufacturer's instructions.
Device: hybrid resin composite
Gradia Direct Anterior
Experimental: a highly filled flowable resin composite
G-aenial Universal Flo, GC, Tokyo, Japan (GF) After applying 37% orthophosphoric acid to the enamel of the lesions for 30 seconds and to the dentin for 15 seconds, the acid will be washed with water and then dried with light air. A universal adhesive (G-Premio Bond, GC, Tokyo, Japan) and then the composite will be applied according to the manufacturer's instructions.
Device: a highly filled flowable resin composite
G-aenial Universal Flo

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Clinical performances of different restorative systems according to FDI criteria (Esthetic properties)
Time Frame: two years
Two year results according to FDI criteria. (Esthetic properties) The evaluations will be carried out using FDI criteria. Esthetic properties will be examined. Five scores will be given for each restoration: (1) Clinically excellent / very good, (2) Clinically good, (3) Clinically sufficient/satisfactory, (4) Clinically unsatisfactory, (5) Clinically poor.The data obtained for groups will be compared at each visit.
two years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Clinical performances of different restorative systems according to FDI criteria (Functional properties)
Time Frame: two years
Two year results according to FDI criteria. (Functional properties) The evaluations will be carried out using FDI criteria. Functional properties will be examined.Five scores will be given for each restoration: (1) Clinically excellent / very good, (2) Clinically good, (3) Clinically sufficient/satisfactory, (4) Clinically unsatisfactory, (5) Clinically poor.The data obtained for groups will be compared at each visit.
two years

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Clinical performances of different restorative systems according to FDI criteria (Biological properties)
Time Frame: two years
Two year results according to FDI criteria. (Biological properties) The evaluations will be carried out using FDI criteria. Biological properties will be examined.Five scores will be given for each restoration: (1) Clinically excellent / very good, (2) Clinically good, (3) Clinically sufficient/satisfactory, (4) Clinically unsatisfactory, (5) Clinically poor.The data obtained for groups will be compared at each visit.
two years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hacettepe University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 15, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 15, 2024

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 15, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 2, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 16, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 19, 2024

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 3, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 2, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • bioactive-NCCLs

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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