Clinical Efficacy of Fluoride Toothpastes Using an In Situ Caries Model

NCT ID: NCT02436473

Last Updated: 2015-08-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2015-12-31

Study Completion Date

2016-11-30

Brief Summary

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The purpose of this study is to evaluate the effect of the test toothpaste containing 1150 parts per million (ppm) of fluoride (F) on the mineral content of demineralized enamel specimens, in an in situ caries model system, by comparing the differences in net remineralization change (ΔM) following use of the test toothpaste with a fluoride free (0 ppm F) reference control toothpaste.

Detailed Description

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Conditions

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Dental Caries

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Test fluoride toothpaste

Participants will apply 1.5 weighed g (± 0.1 g) of the study toothpaste to a wet toothbrush and brush their natural teeth twice daily for one timed minute. Participants will wear their mandibular partial denture with test specimens while brushing and continuously for 24 hours a day during each of the 4-week treatment periods

Group Type EXPERIMENTAL

Toothpaste containing 1150ppm F

Intervention Type DRUG

US marketed toothpaste containing 1150ppm of F

Fluoride free (0ppm F) reference control toothpaste

Participants will apply 1.5 weighed g (± 0.1 g) of the study toothpaste to a wet toothbrush and brush their natural teeth twice daily for one timed minute. Participants will wear their mandibular partial denture with test specimens while brushing and continuously for 24 hours a day during each of the 4-week treatment periods.

Group Type PLACEBO_COMPARATOR

Toothpaste containing 0ppm F

Intervention Type OTHER

Experimental toothpaste containing 0ppm F

Low dose fluoride (250ppm F) reference control toothpaste

Participants will apply 1.5 weighed g (± 0.1 g) of the study toothpaste to a wet toothbrush and brush their natural teeth twice daily for one timed minute. Participants will wear their mandibular partial denture with test specimens while brushing and continuously for 24 hours a day during each of the 4-week treatment periods.

Group Type ACTIVE_COMPARATOR

Toothpaste containing 250ppm F

Intervention Type DRUG

Experimental toothpaste containing 250ppm F

Fluoride (1150ppm F) reference control toothpaste

Participants will apply 1.5 weighed g (± 0.1 g) of the study toothpaste to a wet toothbrush and brush their natural teeth twice daily for one timed minute. Participants will wear their mandibular partial denture with test specimens while brushing and continuously for 24 hours a day during each of the 4-week treatment periods.

Group Type ACTIVE_COMPARATOR

Toothpaste containing 1150ppm F

Intervention Type DRUG

Experimental toothpaste containing 1150ppm F

Interventions

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Toothpaste containing 1150ppm F

US marketed toothpaste containing 1150ppm of F

Intervention Type DRUG

Toothpaste containing 0ppm F

Experimental toothpaste containing 0ppm F

Intervention Type OTHER

Toothpaste containing 250ppm F

Experimental toothpaste containing 250ppm F

Intervention Type DRUG

Toothpaste containing 1150ppm F

Experimental toothpaste containing 1150ppm F

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Demonstrates understanding of the study.
2. Aged 18 to 85 years.
3. Understands and is willing, able and likely to comply with all study procedures and restrictions.
4. Has good general health (in the opinion of the investigator or medically qualified designee).
5. Currently living in the Indianapolis, Indiana area.
6. Currently wearing a removable mandibular partial denture with sufficient room in the posterior buccal flange area to accommodate two enamel specimens.
7. Have no current active caries or periodontal disease and all restorations in a good state of repair.
8. Have a salivary flow rate in the range of normal values.

Exclusion Criteria

1. Pregnant or breast feeding women.
2. Known or suspected intolerance or hypersensitivity to the study materials or their stated ingredients.
3. Currently taking antibiotics or have taken antibiotics in the two weeks prior to the screening visit.
4. Unable to measure product weights accurately using the assigned study scale as determined by the study staff as demonstrated.
5. Participation in another clinical study or receipt of an investigational drug within 30 days of the screening visit.
6. Have received a professional fluoride treatment within 14 days of randomization to the first treatment.
7. Recent history (within the last year) of alcohol or other substance abuse.
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Other Identifiers

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203161

Identifier Type: -

Identifier Source: org_study_id

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