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A Pilot Clinical Study to Evaluate the Safety and Efficacy of Marketed Oxalate Strips Compared to a Marketed Safety Pen

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02384044
Enrollment
30
Registered
2015-03-10
Start date
2015-02-28
Completion date
2015-03-31
Last updated
2019-06-25

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

Conditions

Dentin Sensitivity

Keywords

Sensitivity

Brief summary

This pilot study will evaluate the safety and effectiveness of a marketed sensitivity strip on existing dentinal hypersensitivity compared to a marketed sensitivity pen.

Interventions

DEVICEColgate® Sensitivity Relief Pen

Sponsors

Procter and Gamble
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* be at least 18 years of age * sign an informed consent form and be given a copy * be in good general health as determined by the Investigator/designee * agree to delay any elective dentistry, including dental prophylaxis, and to report any dentistry received during the course of the study * agree to not participate in any other oral care study for the duration of this study * agree to return for scheduled visits and follow all study procedures * have dentinal hypersensitivity with at least one tooth with a Schiff sensitivity score of at least 1 in response to the cold water challenge

Exclusion criteria

* severe periodontal disease, as characterized by purulent exudate, generalized mobility, and/or severe recession * active treatment for periodontitis * any diseases or conditions that might interfere with the subject safely completing the study * inability to undergo study procedures * fixed facial orthodontic appliances * a history of kidney stones * self-reported pregnancy or nursing * known allergies to the following ingredients; aqua, glycerin, cellulose gum, dipotassium oxalate, carbomer, sodium hydroxide, sodium benzoate, and potassium sorbate

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline Visual Analog Scale1 DayVisual Analog Scale (VAS) - subjects are asked to look at a VAS and designate the level of hypersensitivity they experienced as a result of the thermal and water challenges using a continuum scale of 0 = No tooth pain up to 100 = Worst tooth pain ever experienced. A negative change from Baseline score represents a decrease in sensitivity from baseline.

Secondary

MeasureTime frameDescription
Change From Baseline for Air Challenge1 DayThe Schiff Sensitivity Scale was assessed for each test tooth via an evaporative air challenge. The examiner recorded the Schiff Index score corresponding to the response to the air challenge. The Schiff Index Sensitivity scale is scored as follows- 0: tooth/subject did not respond to stimulus, 1: tooth/subject responds to stimulus, but does not request discontinuation of stimulus, 2: tooth/subject responds to stimulus and requests discontinuation or moves form stimulus, 3: tooth/subject responds to stimulus, considers stimulus to be painful, and requests discontinuation of the stimulus. A negative change from Baseline score represents a decrease in sensitivity from baseline.The mean change from Baseline was calculated for this measure.

Countries

United States

Participant flow

Participants by arm

ArmCount
Crest® Sensi-Stop™ Strips
Professionally Applied Crest® Sensi-Stop™ Strips
15
Colgate® Sensitivity Relief Pen
Professionally Applied Colgate® Sensitivity Relief Pen
15
Total30

Baseline characteristics

CharacteristicCrest® Sensi-Stop™ StripsColgate® Sensitivity Relief PenTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
15 Participants15 Participants30 Participants
Age, Continuous43.2 years
STANDARD_DEVIATION 7.97
43.5 years
STANDARD_DEVIATION 7.77
43.4 years
STANDARD_DEVIATION 7.73
Race/Ethnicity, Customized
Asian Oriental
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Black
1 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Caucasian
14 Participants13 Participants27 Participants
Region of Enrollment
United States
15 participants15 participants30 participants
Sex: Female, Male
Female
6 Participants10 Participants16 Participants
Sex: Female, Male
Male
9 Participants5 Participants14 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 150 / 15
other
Total, other adverse events
2 / 151 / 15
serious
Total, serious adverse events
0 / 150 / 15

Outcome results

Primary

Change From Baseline Visual Analog Scale

Visual Analog Scale (VAS) - subjects are asked to look at a VAS and designate the level of hypersensitivity they experienced as a result of the thermal and water challenges using a continuum scale of 0 = No tooth pain up to 100 = Worst tooth pain ever experienced. A negative change from Baseline score represents a decrease in sensitivity from baseline.

Time frame: 1 Day

Population: Thirty (30) subjects received study products and completed the study.

ArmMeasureValue (MEAN)Dispersion
Crest® Sensi-Stop™ StripsChange From Baseline Visual Analog Scale-22.933 Units on a scaleStandard Deviation 19.252
Colgate® Sensitivity Relief PenChange From Baseline Visual Analog Scale-3.200 Units on a scaleStandard Deviation 11.857
Secondary

Change From Baseline for Air Challenge

The Schiff Sensitivity Scale was assessed for each test tooth via an evaporative air challenge. The examiner recorded the Schiff Index score corresponding to the response to the air challenge. The Schiff Index Sensitivity scale is scored as follows- 0: tooth/subject did not respond to stimulus, 1: tooth/subject responds to stimulus, but does not request discontinuation of stimulus, 2: tooth/subject responds to stimulus and requests discontinuation or moves form stimulus, 3: tooth/subject responds to stimulus, considers stimulus to be painful, and requests discontinuation of the stimulus. A negative change from Baseline score represents a decrease in sensitivity from baseline.The mean change from Baseline was calculated for this measure.

Time frame: 1 Day

Population: Thirty (30) subjects received study product and completed the study.

ArmMeasureValue (MEAN)Dispersion
Crest® Sensi-Stop™ StripsChange From Baseline for Air Challenge-0.800 Units on a scaleStandard Deviation 0.561
Colgate® Sensitivity Relief PenChange From Baseline for Air Challenge0.000 Units on a scaleStandard Deviation 0.378

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