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Effects of Antioxidant Dentifrice on Gingivitis

Clinical Study of an Ascorbic Acid Derivative Dentifrice in Patients With Gingivitis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02102295
Enrollment
300
Registered
2014-04-02
Start date
2006-09-30
Completion date
2007-07-31
Last updated
2014-04-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gingivitis

Keywords

Gingivitis, antioxidant, dentifrice, Ascorbic Acid Derivative, L ascorbic acid 2 phosphate magnesium salt

Brief summary

The purpose of this study is to investigate the effect of a dentifrice containing L-ascorbic acid 2-phosphate magnesium salt on gingival inflammation, gingival bleeding and gingival redness.

Interventions

Experimental toothpaste was containing 0.3% L-ascorbic acid 2-phosphate magnesium salt and 950 ppm fluoride. The registered participants were instructed to brush their teeth twice a day in their customary manner.

Control toothpaste was containing 950 ppm fluoride. The registered participants were instructed to brush their teeth twice a day in their customary manner.

Sponsors

Osaka University
CollaboratorOTHER
Tohoku University
CollaboratorOTHER
Nihon University
CollaboratorOTHER
Lion Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Age between ≥ 20 and \< 65 y with at least 16 permanent teeth. * Gingival inflammation or mean baseline GI ≥ 0.5 without severe periodontal disease enough to require professional therapy. * Written informed consent to participate.

Exclusion criteria

* Taking medications that could influence periodontal tissue health, such as antimicrobials and antihypertensives within 1 month before starting the trial. * Use of orthodontic appliances. * Pregnancy or planning to become pregnant during the trial period. * Previous participation in any other clinical trial. * Inability of patient to understand the study purpose and/or study protocols. * Judged unsuitable by investigators for other reasons.

Design outcomes

Primary

MeasureTime frame
Gingival Index3 months

Secondary

MeasureTime frameDescription
Gingival Redness3 monthsGingival redness was measured as an indicator of the degree of local chromatic changes in the gingiva.
Gingivitis Severity Inedex3 months

Other

MeasureTime frameDescription
salivary antioxidant status3 monthsSalivary antioxidant status was assessed by the ferric reduction ability of plasma (FRAP).

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026