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Clinical Investigation to Examine Toothpaste Effect on Oral Bacteria

A Randomized, Single Center, Three Cell, Double Blind and Parallel Groups Clinical Study Conducted in Newark, NJ to Evaluate the Antibacterial Effects of Two Toothpastes Containing 0.3% Triclosan/2% Copolymer/0.243% Sodium Fluoride in a Silica Base as Compared to a Control Regular Fluoride Toothpaste on Oral Bacteria 12 Hours After 13 Days Product Use.

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02194621
Enrollment
128
Registered
2014-07-18
Start date
2014-01-31
Completion date
2014-03-31
Last updated
2016-04-15

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

Conditions

Oral Bacteria Levels in the Mouth

Brief summary

The primary objective was to evaluate the antibacterial effects of two toothpastes containing 0.3% triclosan, 2% copolymer and 0.234% sodium fluoride in a silica base as compared to a control regular fluoride toothpaste on anaerobic and malodor bacteria 12 hours after 13 days of product use. A secondary objective was to demonstrate that a toothpaste containing 0.3% triclosan, 2% copolymer, 0.234% sodium fluoride and a flavor with odor-masking ingredients in silica base (Colgate Total Toothpaste-Flavor Option 1) provides a level of antibacterial efficacy that is equivalent to a toothpaste containing 0.3% triclosan, 2% copolymer, 0.234% sodium fluoride and a regular flavor in silica base (Colgate Total Toothpaste-Flavor Option 2) after 13 days of product use.

Interventions

DRUGTotal Flavor option 1

Total toothpaste containing triclosan/copolymer/sodium fluoride with new OM complex 1 ingredient -Total Flavor Option 1

DRUGTotal Flavor option 2

Total toothpaste containing triclosan/copolymer/sodium fluoride and new OM complex 2 ingredient. Total Flavor option 2

DRUGPlacebo toothpaste: Crest Cavity Protection toothpaste

Placebo toothpaste: Crest Cavity Protection toothpaste w/sodium fluoride (currently marketed)

Sponsors

Colgate Palmolive
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
22 Years to 58 Years
Healthy volunteers
Yes

Inclusion criteria

1. Males and females in good general health aged 18 to 70 years. 2. A willingness to read, understand, and sign the Informed Consent Form after the nature of the study has been fully explained to them. Subject should demonstrate a willingness to comply with all study procedures and sampling schedules. 3. A minimum of 20 natural teeth with facial and lingual scorable surfaces. 4. Adequate oral hygiene and no signs of oral neglect. 5. Good periodontal health. Enrolled subjects will have no more than five periodontal pockets of 5 mm. 6. Subjects with gingival index greater than or equal to 1.0 (Loe-Silness Index) and plaque index greater than or equal to 1.5 (Turesky modification of Quigley-Hein Index) will be enrolled.

Exclusion criteria

1. History of significant adverse effects following use of oral hygiene products such as toothpastes and mouthrinses. Allergy to personal care/consumer products or their ingredients. 2. Teeth that are grossly carious, fully crowned or extensively restored on facial and/or lingual surfaces, orthodontically banded, abutments, or third molars 3. History of diabetes or hepatic or renal disease, or other serious medical conditions or transmittable diseases, e.g. heart disease or AIDS. 4. History of rheumatic fever, heart murmur, mitral valve prolapse or other conditions requiring prophylactic antibiotic coverage prior to invasive dental procedures. 5. Subjects on antibiotic, anti-inflammatory or anticoagulant therapy during the month preceding the baseline exam. 6. Significant oral soft tissue pathology, systemically related gingival enlargement, severe gingivitis (based on a visual examinations). 7. History of active severe periodontal disease with bleeding gums and loose teeth. 8. Gross dental caries, severe generalized cervical abrasion and/or enamel abrasion, large fractured or temporary restorations (based on visual examinations).will not be included in the tooth count. 9. Fixed or removable orthodontic appliance or removable partial dentures. 10. Participation in a dental plaque/gingivitis clinical study involving oral care products, within the last 30 days. History of dental prophylaxis or treatments in the past month. 11. Self reported pregnancy or lactation. 12. History or current use of objects to pierce the lips or tongue. 13. Subjects known to be an alcoholic, or a recovering alcoholic. 14. History or current use of recreational drugs.

Design outcomes

Primary

MeasureTime frameDescription
Malodor Bacteria (Breath Odor Causing Bacteria)BaselineSubjects brush their teeth with assigned toothpaste 2x/day for 13 days. On clinic visit day, subjects brush their teeth and return 12 hours later for clinical evaluation. Samples of dental plaque at the gumline will be collected for microbiological analysis to determine levels of mouth odor causing bacteria CFU - colony forming units.
Anaerobic BacteriaBaselineSubjects brush their teeth with assigned toothpaste 2x/day for 13 days. On clinic visit day, subjects brush their teeth and return 12 hours later for clinical evaluation. Samples of dental plaque at the gumline will be collected for microbiological analysis to determine total levels of anaerobic bacteria CFU - colony forming units.

Countries

United States

Participant flow

Recruitment details

subject recruitment is completed locally at the clinical site

Pre-assignment details

There will be a one (1) week wash out phase with commercially available fluoride toothpaste prior to any study intervention being assigned.

Participants by arm

ArmCount
Total Flavor Option 1
Total toothpaste containing triclosan/copolymer/sodium fluoride with new OM complex 1 ingredient - Total Flavor Option 1 Total Flavor option 1: Total toothpaste containing triclosan/copolymer/sodium fluoride with new OM complex 1 ingredient -Total Flavor Option 1
43
Total Flavor Option 2
Total toothpaste containing triclosan/copolymer/sodium fluoride with new OM complex 2 ingredient. Total Flavor Option 2 Total Flavor option 2: Total toothpaste containing triclosan/copolymer/sodium fluoride and new OM complex 2 ingredient. Total Flavor option 2
42
Crest Toothpaste
Placebo toothpaste: Crest Cavity Protection toothpaste (currently marketed) Placebo toothpaste: Crest Cavity Protection toothpaste: Placebo toothpaste: Crest Cavity Protection toothpaste w/sodium fluoride (currently marketed)
43
Total128

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall Study6 withdrew prior to randomization222
Overall StudyWithdrawal by Subject447

Baseline characteristics

CharacteristicTotal Flavor Option 1Total Flavor Option 2Crest ToothpasteTotal
Age, Continuous36.6 years
STANDARD_DEVIATION 10.2
34.2 years
STANDARD_DEVIATION 10.34
35.9 years
STANDARD_DEVIATION 12.08
35.4 years
STANDARD_DEVIATION 10.82
Region of Enrollment
United States
43 participants42 participants43 participants128 participants
Sex: Female, Male
Female
28 Participants29 Participants24 Participants81 Participants
Sex: Female, Male
Male
15 Participants13 Participants19 Participants47 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 / 430 / 420 / 43
serious
Total, serious adverse events
0 / 430 / 420 / 43

Outcome results

Primary

Anaerobic Bacteria

Subjects brush their teeth with assigned toothpaste 2x/day for 13 days. On clinic visit day, subjects brush their teeth and return 12 hours later for clinical evaluation. Samples of dental plaque at the gumline will be collected for microbiological analysis to determine total levels of anaerobic bacteria CFU - colony forming units.

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Total Flavor Option 1Anaerobic Bacteria8.40 colony forming unitsStandard Deviation 0.33
Total Flavor Option 2Anaerobic Bacteria8.42 colony forming unitsStandard Deviation 0.25
Crest ToothpasteAnaerobic Bacteria8.43 colony forming unitsStandard Deviation 0.28
Comparison: The null hypothesis states that there is no difference between groups.p-value: >0.05ANOVA
Primary

Anaerobic Bacteria

Subjects brush their teeth with assigned toothpaste 2x/day for 13 days. On clinic visit day, subjects brush their teeth and return 12 hours later for clinical evaluation. Samples of dental plaque at the gumline will be collected for microbiological analysis to determine total levels of anaerobic bacteria CFU - colony forming units.

Time frame: 12 hours

ArmMeasureValue (MEAN)Dispersion
Total Flavor Option 1Anaerobic Bacteria7.68 colony forming unitsStandard Error 0.09
Total Flavor Option 2Anaerobic Bacteria7.71 colony forming unitsStandard Error 0.09
Crest ToothpasteAnaerobic Bacteria8.37 colony forming unitsStandard Error 0.09
Comparison: The null hypothesis states that there is no difference between groups.p-value: <0.001ANCOVA
Primary

Malodor Bacteria (Breath Odor Causing Bacteria)

Subjects brush their teeth with assigned toothpaste 2x/day for 13 days. On clinic visit day, subjects brush their teeth and return 12 hours later for clinical evaluation. Samples of dental plaque at the gumline will be collected for microbiological analysis to determine levels of mouth odor causing bacteria CFU - colony forming units.

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Total Flavor Option 1Malodor Bacteria (Breath Odor Causing Bacteria)6.26 colony forming unitsStandard Deviation 0.44
Total Flavor Option 2Malodor Bacteria (Breath Odor Causing Bacteria)6.26 colony forming unitsStandard Deviation 0.5
Crest ToothpasteMalodor Bacteria (Breath Odor Causing Bacteria)6.40 colony forming unitsStandard Deviation 0.46
Comparison: The null hypothesis states that there is no difference between groups.p-value: >0.05ANOVA
Primary

Malodor Bacteria (Breath Odor Causing Bacteria)

Subjects brush their teeth with assigned toothpaste 2x/day for 13 days. On clinic visit day, subjects brush their teeth and return 12 hours later for clinical evaluation. Samples of dental plaque at the gumline will be collected for microbiological analysis to determine levels of mouth odor causing bacteria CFU - colony forming units.

Time frame: 12 hours

ArmMeasureValue (MEAN)Dispersion
Total Flavor Option 1Malodor Bacteria (Breath Odor Causing Bacteria)5.99 colony forming unitsStandard Error 0.07
Total Flavor Option 2Malodor Bacteria (Breath Odor Causing Bacteria)5.92 colony forming unitsStandard Error 0.07
Crest ToothpasteMalodor Bacteria (Breath Odor Causing Bacteria)6.32 colony forming unitsStandard Error 0.07
Comparison: The null hypothesis states that there is no difference between groups.p-value: 0.002ANCOVA

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