Access to Hygiene in Patients With Dental Implants Using Two Toothbrushes

July 20, 2026 updated by: Octavi Camps-Font

Oral Hygiene Access in Patients With Dental Implants Using Two Toothbrushes: A Randomized Crossover Clinical Trial

Peri-implant mucositis is a reversible inflammatory condition primarily caused by biofilm accumulation around dental implants. Effective plaque control is essential for disease resolution; however, the influence of toothbrush bristle design on plaque removal around implant-supported prostheses remains unclear. Polybutylene terephthalate (PBT) tapered-end bristles are more flexible than conventional medium-textured bristles and may improve access to peri-implant areas while increasing patient comfort. This study aims to compare the effectiveness of a PBT tapered-end toothbrush and a medium-textured toothbrush in plaque removal, peri-implant bacterial load reduction, and patient-reported outcomes in individuals with peri-implant mucositis. Each participant will use both toothbrushes in a randomized sequence separated by a six-week washout period. Visible plaque will be disclosed and quantified using standardized photographic analysis based on the Rustogi Modified Navy Plaque Index. Absolute and relative peri-implant bacterial loads of Porphyromonas gingivalis and Fusobacterium nucleatum, together with total bacterial load, will be quantified by quantitative polymerase chain reaction. Patient satisfaction, including perceived discomfort, comfort, ease of handling and intention to use, will be assessed using visual analogue scales.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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.
16

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

  • Spain
    • Barcelona
      • L'Hospitalet de Llobregat, Barcelona, Spain, 08907
        • Hospital Odontològic Universitat de Barcelona

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

No

Description

Inclusion Criteria:

  • Adults diagnosed with peri-implant mucositis according to the 2017 World Workshop Classification.
  • Presence of a screw-retained implant-supported prosthesis comprising one to three crowns.
  • Attendance at the Implant Maintenance Unit during the recruitment period.

Exclusion Criteria:

  • Use of systemic antibiotics or antiseptic mouthrinses within the previous month.
  • Diagnosis of peri-implant health or peri-implantitis.
  • Special healthcare needs, mobility impairment, or cognitive/psychiatric disorders preventing adequate oral hygiene.

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Crossover 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.
Active Comparator: Medium-textured toothbrush
Plaque removal with a medium-textured toothbrush
Other: Plaque removal
Plaque removal with a Polybutylene terephthalate (PBT) tapered-end toothbrush
Experimental: Polybutylene terephthalate (PBT) tapered-end toothbrush
Plaque removal with a Polybutylene terephthalate (PBT) tapered-end toothbrush
Other: Plaque removal
Plaque removal with a Polybutylene terephthalate (PBT) tapered-end toothbrush

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
Time Frame
Changes in the number of plaque-stained surfaces
Time Frame: Inmediately after the intervention
Inmediately after the intervention

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
Satisfaction questionnaire scores
Time Frame: Inmediately after the intervention
Several visual analogue scales (VAS) going from 0 to 10 points will be handled, being 10 the highest score, regarding "Discomfort", "Ease of use" and "Comfort"
Inmediately after the intervention
Absolute and relative counts of Porphyromonas Gingivalis and Fusobacterium Nucleatum
Time Frame: When the microbiological samples were analyzed
When the microbiological samples were analyzed
Total bacterial load quantified using universal 16S rDNA primers
Time Frame: When microbial samples were analyzed
When microbial samples were analyzed

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.
Octavi Camps-Font

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.
May 18, 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.
May 20, 2026

Study Completion (Actual)

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 10, 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).
July 13, 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 20, 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 23, 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 23, 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 20, 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.
June 1, 2026

More Information

Terms related to this study

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.
  • 42/2024

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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