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A Clinical Study to Evaluate Effects of an Oral Rinse on Plaque and Gingivitis

A Prospective, Randomized, Blinded, Clinical Study to Evaluate Effects of an Oral Rinse on Plaque and Gingivitis

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03421145
Enrollment
200
Registered
2018-02-05
Start date
2017-12-17
Completion date
2019-01-17
Last updated
2024-10-01

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

Conditions

Plaque

Keywords

Dental Plaque

Brief summary

Rinse contains an anti-plaque agent that helps prevent the accumulation of dental plaque associated with gingivitis.

Detailed description

This is a prospective, single site, randomized, parallel, blinded clinical trial. Subjects will be randomly assigned to one of four treatment groups identified as Product A, Product B, Product C or Product D. Subjects will be screened for eligibility and entered into a washout period that is at least 7 days, during which time they will be provided with study toothbrush, toothpaste and dental floss. No oral rinses or medication that alters oral tissue health will be used or taken during the washout period. After randomization, the designated rinse will be placed into a non-transparent container so that other subjects and clinical examiners do not see the allocated rinse per the randomization schedule. Examinations for the clinical endpoints (PI, GI and BI) will be conducted at the baseline, 3-month, and 6-month visits. Interim visits will be scheduled to review diary, replenish study supplies, check study compliance, etc. Subjects will be provided Colgate Regular toothpaste, dental floss and a soft toothbrush (replaced at 3 months) for use during the 6-month study period.

Interventions

DEVICE3M™ Oral Rinse

The Investigational Rinse contains a sugar-based surfactant using a proprietary formula. The intended use of the product is to help prevent and reduce plaque accumulation on the teeth and related gum-tissue inflammation (gingivitis).

OTHERVehicle Control Oral Rinse

The Placebo Comparator oral rinse is similar to the Experimental Oral Rinse only it does not contain the active ingredient.

DEVICEPerioShield™ Oral Health Rinse

PerioShield™ Oral Health Rinse (0.2% delmopinol hydrochloride) is marketed in the US and was purchased for use in this study.

OTHERWater

Purified bottled water containing no active ingredients.

Sponsors

3M
CollaboratorINDUSTRY
Solventum US LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

The Principal Investigator and clinical examiners will be blinded to the treatment products. No clinical examiners will see the allocated rinse assigned per the randomization schedule.

Intervention model description

prospective, randomized, blinded, clinical study to evaluate an oral rinse on plaque and gingivitis

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Subjects to whom these criteria apply will be entered into the 7-day washout * Able to understand and willing to sign the Informed Consent * In good general health ages 18 and older * Have at least 20 natural teeth, including at least one molar and one premolar in each quadrant but excluding the third molars * Willing to return to the study facility for scheduled study visits and recalls * Agree not to use other oral hygiene products (non-study toothpaste, dental floss, mouth rinse, chewing gum) * Agree not to brush or floss teeth after 10:00 pm the night before and not eat or drink 4 hours before an appointment * Agree to the study instructions and visit schedule, including no eating or drinking for 4 hours before assessment appointments Subjects must meet the screening inclusion criteria and these additional requirements for enrollment: * Completed the washout period (at least 7 days) using only the study toothbrush, dental floss and toothpaste * A qualifying baseline GI of at least 1.0, as determined by the Löe-Silness Gingival Index (GI) * A qualifying baseline Modified Quigley-Hein (Lobene-Soparkar Modification of Turesky's modification) Plaque Index (PI) of at least 1.5 Subjects will be excluded if they do not meet the screening

Exclusion criteria

.

Design outcomes

Primary

MeasureTime frameDescription
Plaque Index Score Per Participant at 6 Months6 monthsModified Quigley-Hein Plaque Index 0 = No plaque 1. = Separate flecks of plaque at the cervical margin of the tooth 2. = A thin, continuous band of plaque (up to one mm) at the cervical margin of the tooth. 3. = A band of plaque wider than 1 mm, but covering less than 1/3 of the crown of the tooth. 4. = Plaque covering at least 1/3, but less than 2/3 of the crown of the tooth. 5. = Plaque covering 2/3 or more of the crown of the tooth. Each tooth is scored for supragingival plaque on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The PI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.
Gingivitis Index Score Per Participant at 6 Months6 monthsLöe-Silness Gingival Index 0 = Absence of inflammation. 1. = Mild inflammation: slight change in color and little change in texture. 2. = Moderate inflammation: moderate glazing, redness, edema, hypertrophy. Tendency to bleed upon probing. 3. = Severe inflammation: marked redness and hypertrophy. Tendency to spontaneous bleeding. The gingival surface surrounding each tooth (all natural teeth) will be scored on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The GI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.

Secondary

MeasureTime frameDescription
Plaque Index Score Per Participant at 3 Months3 monthsModified Quigley-Hein Plaque Index 0 = No plaque 1. = Separate flecks of plaque at the cervical margin of the tooth 2. = A thin, continuous band of plaque (up to one mm) at the cervical margin of the tooth. 3. = A band of plaque wider than 1 mm, but covering less than 1/3 of the crown of the tooth. 4. = Plaque covering at least 1/3, but less than 2/3 of the crown of the tooth. 5. = Plaque covering 2/3 or more of the crown of the tooth. Each tooth is scored for supragingival plaque on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The PI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.
Bleeding Assessment Per Participant at 6 Months6 monthsEastman Interdental Bleeding Index 0 = Absence of bleeding. 1 = Presence of bleeding The interdental cleaner is inserted between two teeth from the facial aspect, depressing the interdental tissues 1 to 2 mm. This is repeated four times and the presence or absence of bleeding within 15 seconds is recorded. The absence or presence of bleeding will be recorded for each examined site (between two teeth), and a score will be calculated as the number of bleeding sites out of the number of examined sites for each evaluation on a subject.
Gingivitis Index Per Participant at 3 Months3 monthsLöe-Silness Gingival Index 0 = Absence of inflammation. 1. = Mild inflammation: slight change in color and little change in texture. 2. = Moderate inflammation: moderate glazing, redness, edema, hypertrophy. Tendency to bleed upon probing. 3. = Severe inflammation: marked redness and hypertrophy. Tendency to spontaneous bleeding. The gingival surface surrounding each tooth (all natural teeth) will be scored on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The GI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.
Bleeding Index Per Participant at 3 Months3 monthsEastman Interdental Bleeding Index 0 = Absence of bleeding. 1 = Presence of bleeding The interdental cleaner is inserted between two teeth from the facial aspect, depressing the interdental tissues 1 to 2 mm. This is repeated four times and the presence or absence of bleeding within 15 seconds is recorded. The absence or presence of bleeding will be recorded for each examined site (between two teeth), and a score will be calculated as the number of bleeding sites out of the number of examined sites for each evaluation on a subject.

Countries

United States

Participant flow

Pre-assignment details

Subjects entered a washout phase after meeting screening qualifications. These subjects used the study oral hygiene supplies (toothpaste, toothbrush, and dental floss) for at least 7 days before the baseline qualification visit. Subjects were randomized to enter the study after their baseline qualifications were met.

Participants by arm

ArmCount
3M™ Oral Rinse
Subjects assigned to the Experimental Oral Rinse ('Plaque control device) will swish a volume of 15 mL of the Experimental Rinse for 30 seconds followed by expectoration, twice a day (morning and evening), after brushing teeth, for the 6-month duration of the study. They will use the dosing cup provided by the study team to ensure that the proper dose of rinse is used. Subjects will be instructed not to eat or drink for 30 minutes after using the rinse and to complete the subject daily diary. 3M™ Oral Rinse: The Investigational Rinse contains a sugar-based surfactant using a proprietary formula. The intended use of the product is to help prevent and reduce plaque accumulation on the teeth and related gum-tissue inflammation (gingivitis).
50
Vehicle Control Oral Rinse
Vehicle control oral rinse (no active ingredient). Subjects assigned to the Placebo Comparator will swish a volume of 15 mL of the Placebo Comparator rinse for 30 seconds followed by expectoration, twice a day (morning and evening), after brushing teeth, for the 6-month duration of the study. They will use the dosing cup provided by the study team to ensure that the proper dose of rinse is used. Subjects will be instructed not to eat or drink for 30 minutes after using the rinse and to complete the subject daily diary. Vehicle Control Oral Rinse: The Placebo Comparator oral rinse is similar to the Experimental Oral Rinse only it does not contain the active ingredient.
50
PerioShield™ Oral Health Rinse
Active control predicate device oral rinse ('Plaque control agent') Subjects assigned to the Active Comparator will swish a volume of 10 mL of the Active Comparator rinse for 30 seconds followed by expectoration, twice a day (morning and evening), after brushing teeth, for the 6-month duration of the study. They will use the dosing cup provided by the study team to ensure that the proper dose of rinse is used. Subjects will be instructed not to eat or drink for 30 minutes after using the rinse and to complete the subject daily diary. PerioShield™ Oral Health Rinse: PerioShield™ Oral Health Rinse (0.2% delmopinol hydrochloride) is marketed in the US and was purchased for use in this study.
50
Water
Water sham control oral rinse (not a Plaque control agent) Subjects assigned to the Sham Comparator will swish a volume of 15 mL of the Sham Comparator rinse for 30 seconds followed by expectoration, twice a day (morning and evening), after brushing teeth, for the 6-month duration of the study. They will use the dosing cup provided by the study team to ensure that the proper dose of rinse is used. Subjects will be instructed not to eat or drink for 30 minutes after using the rinse and to complete the subject daily diary. Water: Purified bottled water containing no active ingredients.
50
Total200

Baseline characteristics

CharacteristicVehicle Control Oral RinsePerioShield™ Oral Health Rinse3M™ Oral RinseWaterTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants3 Participants3 Participants4 Participants11 Participants
Age, Categorical
Between 18 and 65 years
49 Participants47 Participants47 Participants46 Participants189 Participants
Age, Continuous37 years37 years37 years38 years37 years
Bleeding Index Score0.413 score on a scale
STANDARD_DEVIATION 0.2203
0.399 score on a scale
STANDARD_DEVIATION 0.196
0.452 score on a scale
STANDARD_DEVIATION 0.2388
0.426 score on a scale
STANDARD_DEVIATION 0.2459
0.422 score on a scale
STANDARD_DEVIATION 0.2253
Ethnicity (NIH/OMB)
Hispanic or Latino
18 Participants17 Participants15 Participants19 Participants69 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
32 Participants33 Participants35 Participants31 Participants131 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Gingivitis Index Score1.247 score on a scale
STANDARD_DEVIATION 0.1521
1.237 score on a scale
STANDARD_DEVIATION 0.13
1.277 score on a scale
STANDARD_DEVIATION 0.1793
1.277 score on a scale
STANDARD_DEVIATION 0.2016
1.259 score on a scale
STANDARD_DEVIATION 0.1676
Plaque Index Score2.641 score on a scale
STANDARD_DEVIATION 0.47
2.702 score on a scale
STANDARD_DEVIATION 0.4986
2.725 score on a scale
STANDARD_DEVIATION 0.4953
2.82 score on a scale
STANDARD_DEVIATION 0.5597
2.722 score on a scale
STANDARD_DEVIATION 0.5073
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
6 Participants8 Participants6 Participants9 Participants29 Participants
Race (NIH/OMB)
Black or African American
6 Participants5 Participants11 Participants5 Participants27 Participants
Race (NIH/OMB)
More than one race
2 Participants1 Participants1 Participants0 Participants4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants0 Participants0 Participants2 Participants4 Participants
Race (NIH/OMB)
White
33 Participants35 Participants32 Participants34 Participants134 Participants
Region of Enrollment
United States
50 Participants50 Participants50 Participants50 Participants200 Participants
Sex: Female, Male
Female
19 Participants21 Participants19 Participants21 Participants80 Participants
Sex: Female, Male
Male
31 Participants29 Participants31 Participants29 Participants120 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 500 / 500 / 500 / 50
other
Total, other adverse events
32 / 5016 / 5043 / 5010 / 50
serious
Total, serious adverse events
0 / 500 / 500 / 500 / 50

Outcome results

Primary

Gingivitis Index Score Per Participant at 6 Months

Löe-Silness Gingival Index 0 = Absence of inflammation. 1. = Mild inflammation: slight change in color and little change in texture. 2. = Moderate inflammation: moderate glazing, redness, edema, hypertrophy. Tendency to bleed upon probing. 3. = Severe inflammation: marked redness and hypertrophy. Tendency to spontaneous bleeding. The gingival surface surrounding each tooth (all natural teeth) will be scored on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The GI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.

Time frame: 6 months

Population: Study subjects who completed the study

ArmMeasureValue (MEAN)Dispersion
3M™ Oral RinseGingivitis Index Score Per Participant at 6 Months1.09 score on a scaleStandard Deviation 0.173
Vehicle Control Oral RinseGingivitis Index Score Per Participant at 6 Months1.29 score on a scaleStandard Deviation 0.144
PerioShield™ Oral Health RinseGingivitis Index Score Per Participant at 6 Months1.11 score on a scaleStandard Deviation 0.155
WaterGingivitis Index Score Per Participant at 6 Months1.32 score on a scaleStandard Deviation 0.158
p-value: <0.0001ANCOVA
Primary

Plaque Index Score Per Participant at 6 Months

Modified Quigley-Hein Plaque Index 0 = No plaque 1. = Separate flecks of plaque at the cervical margin of the tooth 2. = A thin, continuous band of plaque (up to one mm) at the cervical margin of the tooth. 3. = A band of plaque wider than 1 mm, but covering less than 1/3 of the crown of the tooth. 4. = Plaque covering at least 1/3, but less than 2/3 of the crown of the tooth. 5. = Plaque covering 2/3 or more of the crown of the tooth. Each tooth is scored for supragingival plaque on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The PI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.

Time frame: 6 months

Population: study subjects who completed the study

ArmMeasureValue (MEAN)Dispersion
3M™ Oral RinsePlaque Index Score Per Participant at 6 Months2.12 score on a scaleStandard Deviation 0.516
Vehicle Control Oral RinsePlaque Index Score Per Participant at 6 Months2.70 score on a scaleStandard Deviation 0.453
PerioShield™ Oral Health RinsePlaque Index Score Per Participant at 6 Months2.23 score on a scaleStandard Deviation 0.473
WaterPlaque Index Score Per Participant at 6 Months2.84 score on a scaleStandard Deviation 0.469
p-value: <0.0001ANCOVA
Secondary

Bleeding Assessment Per Participant at 6 Months

Eastman Interdental Bleeding Index 0 = Absence of bleeding. 1 = Presence of bleeding The interdental cleaner is inserted between two teeth from the facial aspect, depressing the interdental tissues 1 to 2 mm. This is repeated four times and the presence or absence of bleeding within 15 seconds is recorded. The absence or presence of bleeding will be recorded for each examined site (between two teeth), and a score will be calculated as the number of bleeding sites out of the number of examined sites for each evaluation on a subject.

Time frame: 6 months

Population: Study subjects who presented for 6 month follow-up visit

ArmMeasureValue (MEAN)Dispersion
3M™ Oral RinseBleeding Assessment Per Participant at 6 Months0.28 score on a scaleStandard Deviation 0.198
Vehicle Control Oral RinseBleeding Assessment Per Participant at 6 Months0.42 score on a scaleStandard Deviation 0.197
PerioShield™ Oral Health RinseBleeding Assessment Per Participant at 6 Months0.28 score on a scaleStandard Deviation 0.174
WaterBleeding Assessment Per Participant at 6 Months0.43 score on a scaleStandard Deviation 0.246
p-value: <0.0001ANCOVA
Secondary

Bleeding Index Per Participant at 3 Months

Eastman Interdental Bleeding Index 0 = Absence of bleeding. 1 = Presence of bleeding The interdental cleaner is inserted between two teeth from the facial aspect, depressing the interdental tissues 1 to 2 mm. This is repeated four times and the presence or absence of bleeding within 15 seconds is recorded. The absence or presence of bleeding will be recorded for each examined site (between two teeth), and a score will be calculated as the number of bleeding sites out of the number of examined sites for each evaluation on a subject.

Time frame: 3 months

Population: study subjects who presented for 3-month follow-up visit

ArmMeasureValue (MEAN)Dispersion
3M™ Oral RinseBleeding Index Per Participant at 3 Months0.34 score on a scaleStandard Deviation 0.229
Vehicle Control Oral RinseBleeding Index Per Participant at 3 Months0.40 score on a scaleStandard Deviation 0.2
PerioShield™ Oral Health RinseBleeding Index Per Participant at 3 Months0.33 score on a scaleStandard Deviation 0.139
WaterBleeding Index Per Participant at 3 Months0.40 score on a scaleStandard Deviation 0.247
Secondary

Gingivitis Index Per Participant at 3 Months

Löe-Silness Gingival Index 0 = Absence of inflammation. 1. = Mild inflammation: slight change in color and little change in texture. 2. = Moderate inflammation: moderate glazing, redness, edema, hypertrophy. Tendency to bleed upon probing. 3. = Severe inflammation: marked redness and hypertrophy. Tendency to spontaneous bleeding. The gingival surface surrounding each tooth (all natural teeth) will be scored on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The GI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.

Time frame: 3 months

Population: Study subjects who presented for 3-month follow-up

ArmMeasureValue (MEAN)Dispersion
3M™ Oral RinseGingivitis Index Per Participant at 3 Months1.17 score on a scaleStandard Deviation 0.191
Vehicle Control Oral RinseGingivitis Index Per Participant at 3 Months1.27 score on a scaleStandard Deviation 0.163
PerioShield™ Oral Health RinseGingivitis Index Per Participant at 3 Months1.19 score on a scaleStandard Deviation 0.155
WaterGingivitis Index Per Participant at 3 Months1.30 score on a scaleStandard Deviation 0.164
p-value: <0.0001ANCOVA
Secondary

Plaque Index Score Per Participant at 3 Months

Modified Quigley-Hein Plaque Index 0 = No plaque 1. = Separate flecks of plaque at the cervical margin of the tooth 2. = A thin, continuous band of plaque (up to one mm) at the cervical margin of the tooth. 3. = A band of plaque wider than 1 mm, but covering less than 1/3 of the crown of the tooth. 4. = Plaque covering at least 1/3, but less than 2/3 of the crown of the tooth. 5. = Plaque covering 2/3 or more of the crown of the tooth. Each tooth is scored for supragingival plaque on six surfaces: 1) mesio-facial; 2) mid-facial; 3) disto-facial; 4) mesio-lingual; 5) mid-lingual; and 6) disto-lingual. Third molars and those teeth with cervical restorations or prosthetic crowns will be excluded from the scoring procedure. The PI score of the individual can be obtained by adding the scores of all surfaces and dividing by the number of surfaces examined.

Time frame: 3 months

Population: Study subjects that presented for 3 month follow-up

ArmMeasureValue (MEAN)Dispersion
3M™ Oral RinsePlaque Index Score Per Participant at 3 Months2.43 score on a scaleStandard Deviation 0.501
Vehicle Control Oral RinsePlaque Index Score Per Participant at 3 Months2.79 score on a scaleStandard Deviation 0.439
PerioShield™ Oral Health RinsePlaque Index Score Per Participant at 3 Months2.49 score on a scaleStandard Deviation 0.613
WaterPlaque Index Score Per Participant at 3 Months2.85 score on a scaleStandard Deviation 0.476
p-value: <0.0001ANCOVA

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