NCT07140068

Brief Summary

This study compared two ways of cleaning between the teeth, Gumchucks (a new handled dental flossing system) and interdental brushes, in Lebanese adolescents aged 10-15 years. Plaque is a soft layer of bacteria that can build up between teeth and cause tooth decay and gum problems. Toothbrushing alone cannot always clean these spaces. Extra cleaning tools, such as floss or interdental brushes, are recommended. Gumchucks uses two small handles to hold the floss, making it easier to use, especially for children. It had not previously been directly compared with interdental brushes in this age group. In this study, 60 healthy adolescents were included to use Gumchucks on one side of their mouth and interdental brushes on the other side for six months. They were asked to clean twice daily after toothbrushing. Researchers measured plaque levels between teeth, gum bleeding, time taken to clean, and which method participants and parents preferred The goal was to find out which method worked better and was preferred, to help dentists recommend the best way for young people to keep their teeth and gums healthy.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P50-P75 for not_applicable healthy

Timeline
Completed

Started Nov 2022

Typical duration for not_applicable healthy

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 21, 2022

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 10, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 10, 2023

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

August 16, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 24, 2025

Completed
Last Updated

August 24, 2025

Status Verified

August 1, 2025

Enrollment Period

12 months

First QC Date

August 16, 2025

Last Update Submit

August 22, 2025

Conditions

Keywords

Dental plaqueGingivitisOral hygieneFlossingInterdental brushesInterdental cleaningDental flossOral healthPreventive dentistryAdolescents

Outcome Measures

Primary Outcomes (2)

  • Interdental plaque removal

    Evaluated by measuring the modified Quigley-Hein plaque index scores (by Turesky et al., 1970) after using a plaque disclosing agent.

    Baseline, 1 month, 3 months, and 6 months.

  • Gingival inflammation reduction

    Evaluated by measuring the papillary bleeding index (PBI) scores (by Mühlemann, 1977).

    Baseline, 1 month, 3 months, and 6 months.

Secondary Outcomes (2)

  • Cleaning time

    Dental Prophylaxis Session, 3 days before the Baseline examination session

  • Participant and Parent Preferences.

    Dental Prophylaxis Session, 3 days before the Baseline examination session

Study Arms (2)

GumChucks Flossing System

EXPERIMENTAL

Participants cleaned all interdental spaces on one side of the mouth using the handled flossing system (GumChucks®) twice daily after toothbrushing with a medium- bristle toothbrush and fluoride toothpaste. The proper C-shape flossing technique was demonstrated, and written instructions were provided.

Device: Handled dental flossing system (GumChucks®)

Interdental Brush

EXPERIMENTAL

Participants cleaned all interdental spaces on the other side of the mouth using appropriately sized interdental brushes twice daily after toothbrushing with a medium-bristle toothbrush and fluoride toothpaste. Proper technique was demonstrated, and written instructions were provided.

Device: Interdental Brush

Interventions

Handled dental flossing system (GumChucks®) designed for easier C-shape flossing. Participants were instructed to clean all interdental spaces on the assigned side twice daily after toothbrushing with fluoride toothpaste using a medium-bristle toothbrush. Proper technique was demonstrated and written instructions provided.

GumChucks Flossing System

Appropriately sized interdental brushes for cleaning interdental spaces on the assigned side. Participants were instructed to clean twice daily after toothbrushing with fluoride toothpaste using a medium-bristle toothbrush. Proper technique was demonstrated and written instructions provided.

Interdental Brush

Eligibility Criteria

Age10 Years - 15 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Healthy adolescents (ASA 1) aged between 10 and 15 years;
  • Patients who had at least 4 posterior interdental contacts;
  • Patients who were able to follow verbal and/or written instructions, where they were asked to perform what they understood directly after reading the written instructions and listening to the explanation.

You may not qualify if:

  • Patients who had antibiotics within the last 6 months;
  • Patients who were using antibacterial mouth rinses;
  • Patients with physical, intellectual, developmental, or emotional disabilities;
  • Patients with unilateral mastication or a nonfunctional side.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beirut Arab University

Beirut, Tarik El Jadida, 11-50-20, Lebanon

Location

MeSH Terms

Conditions

Dental PlaqueGingivitis

Condition Hierarchy (Ancestors)

Dental DepositsTooth DiseasesStomatognathic DiseasesInfectionsGingival DiseasesPeriodontal DiseasesMouth Diseases

Study Officials

  • Rim K Daher, Masters

    Beirut Arab University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The outcome assessor was blinded to which side of each participant's mouth received the handled flossing system or interdental brush. Participants and care providers were not masked due to the visible nature of the interventions.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized controlled trial using a split-mouth design, where each participant's mouth was divided into two halves, one side assigned to the GumChucks flossing system and the other side to interdental brushes.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator, Pediatric Dentistry Resident

Study Record Dates

First Submitted

August 16, 2025

First Posted

August 24, 2025

Study Start

November 21, 2022

Primary Completion

November 10, 2023

Study Completion

November 10, 2023

Last Updated

August 24, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

This study will only share aggregate results, such as mean plaque scores, cleaning times, and preference percentages, in publications. Individual participant-level data (IPD) will not be shared.

Locations