Comparison of Erythritol Air-Polishing and Conventional Polishing Following Ultrasonic Scaling on the Relapse of Chromogenic Tooth Staining in Children

July 22, 2026 updated by: Marmara University

Comparison of Erythritol Air-Polishing and Conventional Polishing Following Ultrasonic Scaling on the Relapse of Chromogenic Tooth Staining in Children: A Randomized Clinical Trial

The goal of this randomized clinical trial is to compare the effect of erythritol air-polishing and conventional polishing following ultrasonic scaling on the relapse of chromogenic tooth staining in children aged 4-13 years attending the Pediatric Dentistry Clinic of Marmara University Faculty of Dentistry for routine dental examination.

The main questions this study aims to answer are:

  • Does erythritol air-polishing reduce the relapse of chromogenic tooth staining compared with conventional polishing following ultrasonic scaling?
  • Is there a difference in the time to relapse of chromogenic tooth staining between the two polishing techniques?

Researchers will compare conventional polishing (prophylaxis paste and a polishing brush) following ultrasonic scaling with erythritol air-polishing performed using the EMS air-polishing device following ultrasonic scaling to determine whether one method is more effective in preventing or delaying the relapse of chromogenic tooth staining.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

Detailed Description

Participants will:

Undergo a routine oral examination. Receive professional removal of chromogenic tooth staining using ultrasonic scaling.

Be randomly assigned to receive either conventional polishing with prophylaxis paste and a polishing brush or erythritol air-polishing using the EMS air-polishing device.

Attend follow-up visits to assess the recurrence of chromogenic tooth staining over time.

Chromogenic tooth staining will be assessed using the Qraycam.

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 (Estimated)

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.
56

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 Locations

  • Turkey (Türkiye)
    • MALTEPE
      • Istanbul, MALTEPE, Turkey (Türkiye), 34854
        • Marmara Üniversitesi Recep Tayyip Erdoğan Külliyesi Sağlık Yerleşkesi, Diş Hekimliği Fakültesi
        • Contact:

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

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Children aged 4-13 years.
  • Absence of oral diseases, including gingivitis and oral mucosal diseases.
  • No orthodontic appliances.
  • No history of iron supplementation or professional fluoride treatment within the previous 3 months.
  • Systemically healthy children.

Exclusion Criteria:

  • Presence of oral diseases, including periodontitis, salivary gland diseases, or oral mucosal diseases.
  • History of autoimmune disease.
  • Antibiotic use within the previous 3 months.
  • Consumption of tannin-containing beverages (e.g., tea, coffee, or similar beverages) within the previous 1 month.

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

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.
Active Comparator: Group 1 (Erythritol Air-Polishing Using the EMS Air-Polishing Device)
Device: Guided Biofilm Therapy with erythritol
Description: Participants assigned to Group 1 will receive professional removal of chromogenic tooth staining using ultrasonic scaling followed by erythritol air-polishing with the EMS air-polishing device, guided by a plaque-disclosing agent. At the end of the procedure, the investigator will record the treatment time, apply the plaque-disclosing agent, obtain intraoral photographs, and assess chromogenic tooth staining using the Qraycam.
Active Comparator: Group 2 (Conventional Polishing Using Prophylaxis Paste and a Polishing Brush)
Device: Conventional Polishing
Participants will undergo professional tooth cleaning using the ultrasonic scaler of the EMS device. The tooth surfaces will then be polished using a polishing brush and prophylaxis paste.

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
Black Stain Score
Time Frame: Baseline, immediately after polishing, 1 month, 2 months, 3 months, and 6 months

Black Stain Classification (Gasparetto et al., 2003) Score Description Clinical Characteristics 0 None No black pigmentation on the tooth surface.

  1. Mild Pigmented dots or thin pigmented lines parallel to the gingival margin that are not continuous.
  2. Moderate Continuous pigmented lines o extending over up to one-half of the cervical third of the tooth surface.
  3. Severe Pigmentation extending over more than one-half of the cervical third of the tooth surface.

Black Stain Classification (Zerman et al., 2024) Score Description A Pigmented lines or dots present only on the buccal surface. B Pigmented lines or dots present on both the buccal and lingual surfaces. C Pigmented lines or dots associated with dental caries. D Recurrent pigmented lines or dots.
Baseline, immediately after polishing, 1 month, 2 months, 3 months, and 6 months
Participant Feedback
Time Frame: Periprocedural
Pain perception during the procedure will be assessed using the Wong-Baker FACES Pain Rating Scale. The scale ranges from 0 to 10, where 0 indicates "no pain" and 10 indicates "hurts worst." Higher scores indicate greater pain intensity (worse outcome).
Periprocedural
Time Session
Time Frame: Periprocedural
The duration of treatment is noted and compared between groups
Periprocedural

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.
Marmara 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 (Estimated)

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.
July 7, 2026

Primary Completion (Estimated)

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.
January 1, 2028

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.
February 28, 2028

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).
July 10, 2026

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.
July 22, 2026

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.
July 28, 2026

Study Record Updates

Last Update Posted (Actual)

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.
July 28, 2026

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.
July 22, 2026

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.
July 1, 2026

More Information

Terms related to this study

Keywords

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.
  • GBTvschromogenic

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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