Skip to content

Efficacy and Safety Study of Interproximal Cleaning Modalities on Oral Health

A Randomized, Parallel Design Study to Assess the Effects of Three Interproximal Cleaning Modalities Versus a Manual Toothbrush Control on Gingivitis and Plaque Following a Period of Home Use

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02187016
Enrollment
290
Registered
2014-07-10
Start date
2014-06-30
Completion date
2014-07-31
Last updated
2016-03-08

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

Conditions

Gingivitis

Keywords

Gingivitis, plaque, interproximal cleaning, dental floss

Brief summary

The purpose of this study is to evaluate the safety and efficacy of tooth and interproximal cleaning modalities with and without chemistry on oral health over 28 days.

Interventions

DEVICEAirFloss + BreathRx

Manual Toothbrush used twice daily, 1 minute. Interproximal cleaning plus Rinse used once daily.

DEVICEAirFloss + Listerine

Manual Toothbrush used twice daily, 1 minute. Interproximal cleaning plus Rinse used once daily.

Manual Toothbrush used twice daily, 1 minute. Interproximal cleaning used once daily.

DEVICEManual Toothbrush

Manual Toothbrush used twice daily, 1 minute.

Sponsors

Philips Oral Healthcare
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Be willing and physically able to carry out all study procedures and be available at all times required for participation * Be able to fully understand and comply with the written and verbal instructions provided * Provide written Informed Consent * Be age 18 - 65 years * Agree to return study materials at the required visits * Be a non-smoker * Have a minimum of 20 'scorable' teeth (excluding 3rd molars) * Have a minimum average plaque score of \> 0.5 per RMNPI scoring with 2-6 hours of plaque accumulation * Have a Gingival Bleeding Index of -\>1 on at least 10 sites * Be a regular manual toothbrush user * Be a non or irregular flosser defined as using dental floss or any other interproximal cleaning technique once per week or less often

Exclusion criteria

* A medical or dental condition that would be unduly affected by participation in this study, per Investigator discretion * Pregnant or nursing per subject report * A medical condition requiring antibiotic pre-medication prior to dental appointments * Diagnosis of xerostomia * Any oral or extra oral piercing that interferes with the ability to perform study procedures and/or clinical assessments in the mouth * Currently undergoing or requiring dental/periodontal treatment, or having had periodontal treatment in the six months preceding the study, where the subject's study participation could present an undue safety risk or obscure the evaluation of study endpoints, per Investigator /Examiner discretion * Oral surgery within the last 2 months * Current use of professionally dispensed bleaching products * A known allergy or sensitivity to products planned for use in this study * Unwillingness to abstain from all other oral hygiene products other than those prescribed for the duration of the study * Unwillingness to abstain from all other oral hygiene products other than those prescribed for the duration of the study * Participation in an oral care study within the previous 90 days * Be an employee or a relative of an employee of the Site clinical research department, dental school, or a dental products manufacturing, research or marketing firm * Are a dental student or dental professional * A cardiac pacemaker or implanted cardiac defibrillator * Insulin-Dependent Diabetes * Current use of antibiotic medications or use within 4 weeks of enrollment * Current use of prescription-dose anti-inflammatory medications or anticoagulants; (including aspirin \> 81 mg daily) * Presence of advanced periodontal disease or excessive gingival recession, per Investigator/Examiner discretion * Heavy deposits of calculus, either supragingival and/or subgingival, per Investigator/Examiner discretion * Extensive crown or bridge work and/or rampant decay, per Investigator/Examiner discretion * Presence of orthodontic bands interfering with efficacy outcome(s) per Investigator/Examiner discretion * Have a professional prophylaxis within 4 weeks of the study * Be a regular power toothbrush user

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 1414 daysMGI is a validated assessment of Gingival inflammation using a 4 point range where 0 (absence of inflammation) to 4 (severe inflammation).

Secondary

MeasureTime frameDescription
Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 2828 daysMGI is a validated assessment of Gingival inflammation using a 4 point scale from 0 (absence of inflammation) to 4 (severe inflammation).
Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 1414 daysGBI is a validated assessment of gingival bleeding using a 4 point scale with 0 (no bleeding) to 3 (spontaneous bleeding).
Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 2828 daysGBI is a validated assessment of gingival bleeding using a 4 point scale with 0 (no bleeding) to 3 (spontaneous bleeding).
Change From Baseline Using Rustogi Modification of the Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 1414 daysRMNPI is a validated assessment of visual surface dental plaque using a dichotomous scale 0 (absence) to 1 (presence).
Change From Baseline in Rustogi Modification of Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 2828 daysRMNPI is a validated assessment of visual surface dental plaque using a dichotomous scale 0 (absence) to 1 (presence).

Countries

United States

Participant flow

Participants by arm

ArmCount
AirFloss + Rinse1
AirFloss interproximal cleaning device with BreathRx applied once a day between the teeth with Manual Tooth brushing twice a day for 1 minute.
79
AirFloss + Rinse2
AirFloss interproximal cleaning device with Listerine applied once a day between the teeth with Manual Tooth brushing twice a day for 1 minute.
78
String Floss
String Floss interproximal cleaning device is applied once a day between the teeth with Manual Tooth brushing twice a day for 1 minute
79
Manual Toothbrush
Manual Toothbrush is used twice a day for 1 minute
51
Total287

Baseline characteristics

CharacteristicAirFloss + Rinse1AirFloss + Rinse2String FlossManual ToothbrushTotal
Age, Continuous37 years
STANDARD_DEVIATION 12.2
35.6 years
STANDARD_DEVIATION 10.7
34.9 years
STANDARD_DEVIATION 11
35.1 years
STANDARD_DEVIATION 12.1
35.7 years
STANDARD_DEVIATION 11.5
Region of Enrollment
United States
79 participants78 participants79 participants51 participants287 participants
Sex: Female, Male
Female
50 Participants50 Participants51 Participants33 Participants184 Participants
Sex: Female, Male
Male
29 Participants28 Participants28 Participants18 Participants103 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
— / —— / —— / —— / —
other
Total, other adverse events
2 / 791 / 781 / 780 / 51
serious
Total, serious adverse events
0 / 790 / 780 / 780 / 51

Outcome results

Primary

Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 14

MGI is a validated assessment of Gingival inflammation using a 4 point range where 0 (absence of inflammation) to 4 (severe inflammation).

Time frame: 14 days

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AirFloss + Rinse1Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 140.10 units on a scaleStandard Error 0.01
AirFloss + Rinse2Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 140.10 units on a scaleStandard Error 0.01
String FlossChange From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 140.10 units on a scaleStandard Error 0.01
Manual ToothbrushChange From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 140.01 units on a scaleStandard Error 0.01
Secondary

Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 14

GBI is a validated assessment of gingival bleeding using a 4 point scale with 0 (no bleeding) to 3 (spontaneous bleeding).

Time frame: 14 days

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AirFloss + Rinse1Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 140.05 units on a scaleStandard Error 0
AirFloss + Rinse2Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 140.05 units on a scaleStandard Error 0
String FlossChange From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 140.05 units on a scaleStandard Error 0
Manual ToothbrushChange From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 140.00 units on a scaleStandard Error 0.01
Secondary

Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 28

GBI is a validated assessment of gingival bleeding using a 4 point scale with 0 (no bleeding) to 3 (spontaneous bleeding).

Time frame: 28 days

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AirFloss + Rinse1Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 280.08 units on a scaleStandard Error 0
AirFloss + Rinse2Change From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 280.08 units on a scaleStandard Error 0
String FlossChange From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 280.09 units on a scaleStandard Error 0
Manual ToothbrushChange From Baseline in Gingival Bleeding Index (GBI) on a 4 Point Scale at Day 280.01 units on a scaleStandard Error 0.01
Secondary

Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 28

MGI is a validated assessment of Gingival inflammation using a 4 point scale from 0 (absence of inflammation) to 4 (severe inflammation).

Time frame: 28 days

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AirFloss + Rinse1Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 280.20 units on a scaleStandard Error 0.01
AirFloss + Rinse2Change From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 280.22 units on a scaleStandard Error 0.01
String FlossChange From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 280.26 units on a scaleStandard Error 0.01
Manual ToothbrushChange From Baseline in Gingival Inflammation on a 4 Point Scale Using the Modified Gingival Index (MGI) at Day 280.03 units on a scaleStandard Error 0.02
Secondary

Change From Baseline in Rustogi Modification of Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 28

RMNPI is a validated assessment of visual surface dental plaque using a dichotomous scale 0 (absence) to 1 (presence).

Time frame: 28 days

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AirFloss + Rinse1Change From Baseline in Rustogi Modification of Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 280.15 units on a scaleStandard Error 0.01
AirFloss + Rinse2Change From Baseline in Rustogi Modification of Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 280.16 units on a scaleStandard Error 0.01
String FlossChange From Baseline in Rustogi Modification of Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 280.17 units on a scaleStandard Error 0.01
Manual ToothbrushChange From Baseline in Rustogi Modification of Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 280.04 units on a scaleStandard Error 0.01
Secondary

Change From Baseline Using Rustogi Modification of the Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 14

RMNPI is a validated assessment of visual surface dental plaque using a dichotomous scale 0 (absence) to 1 (presence).

Time frame: 14 days

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AirFloss + Rinse1Change From Baseline Using Rustogi Modification of the Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 140.09 units on a scaleStandard Error 0.01
AirFloss + Rinse2Change From Baseline Using Rustogi Modification of the Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 140.10 units on a scaleStandard Error 0.01
String FlossChange From Baseline Using Rustogi Modification of the Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 140.11 units on a scaleStandard Error 0.01
Manual ToothbrushChange From Baseline Using Rustogi Modification of the Navy Plaque Index (RMNPI) Using a Dichotomous Scale at Day 140.04 units on a scaleStandard Error 0.01

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