Skip to content

A Study to Evaluate the Safety and Efficacy of an Oxalate Strip on Adjacent Teeth With Dentinal Hypersensitivity

A Pilot Clinical Study to Evaluate the Safety and Efficacy of a Self-Applied Oxalate Strip on Adjacent Teeth With Dentinal Hypersensitivity

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02293044
Enrollment
15
Registered
2014-11-18
Start date
2014-11-30
Completion date
2014-11-30
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 study will compare the safety and effectiveness of a potassium oxalate desensitizer on adjacent teeth with dentinal hypersensitivity.

Interventions

Sponsors

Procter and Gamble
Lead SponsorINDUSTRY

Study design

Allocation
NA
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 * have at least one pair of adjacent teeth, each of which has a screening score of - -greater than or equal to 1 on the Schiff Sensitivity Scale 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 * self-reported pregnancy or nursing * a history of kidney stones * 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 Cold Water Challenge1 DayThe Schiff Sensitivity Scale was assessed for each test tooth via a cold water challenge. The examiner recorded the Schiff Index score corresponding to the response to the cold water 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.

Secondary

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. The mean change from Baseline was calculated for this measure.

Countries

United States

Participant flow

Participants by arm

ArmCount
Crest® Sensi-Stop™ Strips
Self Applied Crest® Sensi-Stop™ Strips
15
Total15

Baseline characteristics

CharacteristicCrest® Sensi-Stop™ Strips
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
15 Participants
Age, Continuous42.9 years
STANDARD_DEVIATION 8.61
Race/Ethnicity, Customized
Ethnicity
Black
1 Participants
Race/Ethnicity, Customized
Ethnicity
Caucasian
12 Participants
Race/Ethnicity, Customized
Ethnicity
Hispanic
2 Participants
Region of Enrollment
United States
15 Participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
4 Participants

Adverse events

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

Outcome results

Primary

Change From Baseline Cold Water Challenge

The Schiff Sensitivity Scale was assessed for each test tooth via a cold water challenge. The examiner recorded the Schiff Index score corresponding to the response to the cold water 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: Fifteen (15) subjects received study products. Fifteen (15) subjects completed the study.

ArmMeasureValue (MEAN)Dispersion
Crest® Sensi-Stop™ StripsChange From Baseline Cold Water Challenge-1.00 Units on a scaleStandard Deviation 0.76
Secondary

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. The mean change from Baseline was calculated for this measure.

Time frame: 1 Day

Population: Fifteen (15) subjects received study products. Fifteen (15) subjects completed the study.

ArmMeasureValue (MEAN)Dispersion
Crest® Sensi-Stop™ StripsChange From Baseline Visual Analog Scale-18.00 Units on a scaleStandard Deviation 13.61

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