Skip to content

Compare the Clinical Efficacy of Prototype Toothpastes

Compare the Clinical Efficacy of Prototype Toothpastes

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00926029
Enrollment
98
Registered
2009-06-23
Start date
2008-01-31
Completion date
2008-04-30
Last updated
2012-02-17

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

Conditions

Dental Plaque

Brief summary

Clinical study to compare the clinical efficacy of toothpastes on dental plaque and gingival inflammation.

Interventions

DRUGFluoride

Brush twice daily

Brush twice daily

OTHERMetal salt

Brush twice daily

Sponsors

Colgate Palmolive
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Male or female volunteers 18-65 years of age. * Good general health. * Must sign informed consent form. * Minimum of 20 natural uncrowned teeth (excluding third molars) must be present. * No history of allergy to personal care consumer products, or their ingredients, relevant to any ingredient in the test products as determined by the dental/medical professional monitoring the study.

Exclusion criteria

* Subject unable or unwilling to sign the informed consent form. * Medical condition which requires pre-medication prior to dental visits/procedures. * Moderate or advanced periodontal disease. * 5 or more decayed untreated dental sites at screening. * Other disease of the hard or soft oral tissues. * Impaired salivary function (e.g. Sjogren's syndrome or head and neck irradiation). * Use of medications that currently affect salivary flow. * Use of antibiotics or antimicrobial drugs within 30 days prior to study visit #1. * Pregnant or nursing women. * Participation in any other clinical study within 1 week prior to enrollment into this study. * Use of tobacco products. * Subjects who must receive dental treatment during the study dates. * Current use of Antibiotics for any purpose. * Presence of an orthodontic appliance. * History of allergy to common dentifrice ingredients. * History of allergy to zinc. * Immune compromised individuals (HIV, AIDS, immuno suppressive drug therapy).

Design outcomes

Primary

MeasureTime frameDescription
Plaque Index6 weeksPlaque Index score scale 0 to 5 (0 = no plaque, 1 = separate flecks of plaque on the tooth, 2 = a thin continuous band of plaque,3 = a band of plaque up to one-third of the tooth, 4 = plaque covering up to two thirds of the of the tooth, 5 = plaque covering two-thirds or more of the crown of the tooth)
Gingivitis Index6 WeeksGingivitis score- scale 0 to 3 (0 = no inflammation,1 = Mild inflammation-slight change in color and little change in texture 2 = Moderate inflammation-moderate glazing, redness, edema and hypertrophy. Tendency to bleed upon probing. 3 = Severe inflammation-marked redness and hypertrophy. Tendency to spontaneous bleeding)

Countries

United States

Participant flow

Recruitment details

At the clinical site

Participants by arm

ArmCount
Placebo Control
fluoride toothpaste
34
Positive Control
triclosan/fluoride toothpaste
34
Experimental
triclosan/fluoride/zinc toothpaste
34
Total102

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up211

Baseline characteristics

CharacteristicPositive ControlExperimentalPlacebo ControlTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0.0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0.0 Participants
Age, Categorical
Between 18 and 65 years
34 Participants34 Participants34 Participants102.0 Participants
Age Continuous46.4 years
STANDARD_DEVIATION 10.5
48.9 years
STANDARD_DEVIATION 9.5
46.7 years
STANDARD_DEVIATION 11.2
47.4 years
STANDARD_DEVIATION 10.4
Region of Enrollment
United States
34 participants34 participants34 participants102.0 participants
Sex: Female, Male
Female
26 Participants29 Participants25 Participants80.0 Participants
Sex: Female, Male
Male
8 Participants5 Participants9 Participants22.0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 340 / 340 / 34
serious
Total, serious adverse events
0 / 340 / 340 / 34

Outcome results

Primary

Gingivitis Index

Gingivitis score- scale 0 to 3 (0 = no inflammation,1 = Mild inflammation-slight change in color and little change in texture 2 = Moderate inflammation-moderate glazing, redness, edema and hypertrophy. Tendency to bleed upon probing. 3 = Severe inflammation-marked redness and hypertrophy. Tendency to spontaneous bleeding)

Time frame: 6 Weeks

ArmMeasureValue (MEAN)Dispersion
Placebo ControlGingivitis Index0.63 Units on a scaleStandard Deviation 0.15
Positive ControlGingivitis Index0.51 Units on a scaleStandard Deviation 0.17
ExperimentalGingivitis Index0.98 Units on a scaleStandard Deviation 0.15
Comparison: The null hypothesis states that there is no difference between groups.p-value: 0.05ANOVA
Primary

Plaque Index

Plaque Index score scale 0 to 5 (0 = no plaque, 1 = separate flecks of plaque on the tooth, 2 = a thin continuous band of plaque,3 = a band of plaque up to one-third of the tooth, 4 = plaque covering up to two thirds of the of the tooth, 5 = plaque covering two-thirds or more of the crown of the tooth)

Time frame: 6 weeks

ArmMeasureValue (MEAN)Dispersion
Placebo ControlPlaque Index0.91 Units on a scaleStandard Deviation 0.91
Positive ControlPlaque Index0.84 Units on a scaleStandard Deviation 0.25
ExperimentalPlaque Index1.77 Units on a scaleStandard Deviation 0.44
Comparison: The null hypothesis states that there is no difference between groups.p-value: 0.05ANOVA

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