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This study is for people with sensitive teeth and involves going to the dentist for 4 visits over 6 weeks. At each visit the dentist will look at the mouth, teeth, tongue and gums of subjects, and check for sensitive teeth.
During the first 2 weeks, participants will brush their teeth two times a day with the fluoride toothpaste provided.
Then, if they qualify to continue in the study, participants will be assigned to a treatment group. All the groups will get toothpaste currently sold on the market, and one group will get a mouthwash with an experimental ingredient to use as well. Subjects will have an equal chance of being assigned to any one of the three groups.
For the next 4 weeks, subjects will use their assigned products according to the directions provided. At Visit 1 subjects will be supervised while they brush their teeth to ensure they understand the directions. They will also have supervised use of the product at Visit 2.
We will see if the mouthwash helps to reduce tooth sensitivity during the study.
This study will consist of run-in and treatment phases. To qualify for the study, subjects must meet the inclusion/exclusion criteria and return tactile sensitivity scores within protocol-specified parameters at both the screening and baseline visits.
Run-in will consist of a 2-week period during which subjects will use a sodium fluoride dentifrice. At the start of the first phase, subjects will attend a Screening Visit. They will participate in the informed consent process, complete a medical/dental history, and be evaluated for tactile sensitivity to Yeaple probe and response to a cold air stimulus.
Subjects who qualify through screening will begin a run-in period that will last approximately two weeks. The run-in period will be followed by a Baseline visit. Subjects who continue to qualify through Baseline will be randomized to one of three treatment groups.
During the four-week treatment period, all subjects will brush their teeth twice daily for at least one minute in their usual manner, with their assigned toothpaste. After brushing, subjects assigned to the mouth rinse group will rinse with water, and then rinse with 10 mL of the experimental mouth rinse for 60 seconds.
The study duration is approximately six weeks with each subject visiting the clinical site six times.
Adverse events will be observed and collected by querying each subject at each visit for new or continuing symptoms.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Mouth Rinse | Experimental | Twice daily for 28 days, brush in usual manner for at least one minute using at least a one-inch strip of Fluoride Toothpaste provided. Rinse with water after brushing teeth. Then rinse for 60 seconds with 10 mL of the experimental Mouth Rinse 12027-033 (KOX). |
|
| Fluoride Toothpaste | Active Comparator | Twice daily for 28 days, brush in usual manner for at least one minute using at least a one-inch strip of the Fluoride Toothpaste (NEG) provided. |
|
| Potassium Nitrate Toothpaste | Active Comparator | Twice daily for 28 days, brush in usual manner for at least one minute using at least a one-inch strip of the Potassium Nitrate Toothpaste (POS) provided. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Mouth Rinse | Device | Mouth rinse 12027-033 used twice daily for 28 days after brushing. |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Mean Tactile Sensitivity Score at Week 4 | Tooth sensitivity was measured using a Yeaple probe. The force at which discomfort was felt by the participant was recorded on a scale of 10-80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | 4 weeks |
| Mean Tactile Sensitivity Score at Week 2 | Tooth sensitivity was measured using a Yeaple probe. The force at which discomfort was felt by the participant was recorded on a scale of 10-80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | 2 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Mean Tactile Sensitivity VAS Score at Week 2 | Tooth sensitivity was measured using a Visual Analogue Scale (VAS). At each visit, participants rated their perception of the pain/discomfort experienced from the Yeaple probe by marking a single vertical line on a VAS scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The investigator recorded a VAS score of 0 mm for participants who did not experience discomfort at the maximum force of 80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Michael Lynch, DMD, PhD | Johnson & Johnson Consumer and Personal Products Worldwide | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| BioSci Research America, Inc. | Las Vegas | Nevada | 89121 | United States |
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| ID | Title | Description |
|---|---|---|
| FG000 | Colgate Regular | Standard Sodium Fluoride Dentifrice (Negative Control) (UPC #035000513007). |
| FG001 | Sensodyne Toothpaste | 5% Potassium Nitrate Dentifrice (Positive Control) (UPC #310158077046). |
| FG002 | Potassium Oxalate Mouthrinse | Potassium Oxalate Mouthrinse (experimental group)(12027-033). |
| Title | Milestones | Reasons Not Completed | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
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|
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| ID | Title | Description |
|---|---|---|
| BG000 | Colgate Regular | Standard Sodium Fluoride Dentifrice (Negative Control) (UPC #035000513007). |
| BG001 | Sensodyne Toothpaste | 5% Potassium Nitrate Dentifrice (Positive Control) (UPC #310158077046). |
| Units | Counts |
|---|---|
| Participants |
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| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Mean Tactile Sensitivity Score at Week 4 | Tooth sensitivity was measured using a Yeaple probe. The force at which discomfort was felt by the participant was recorded on a scale of 10-80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | Analysis was based on the Intent-to-Treat (ITT) analysis set, defined as all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment. | Posted | Least Squares Mean | Standard Error | grams of force | 4 weeks |
|
Day 28 -2 days/+4 days, +30 days for serious adverse events.
Adverse events were systematically collected at each study visit through Visit 4 (Day 28 -2 days/+4 days). Serious adverse events were reported through 30 days after product use. Spontaneously reported adverse events collected outside of the regularly scheduled visits were also recorded.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Colgate Regular | Standard Sodium Fluoride Dentifrice (Negative Control) (UPC #035000513007). |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Michael Lynch, DMD, PhD/Study Director | Johnson & Johnson Consumer and Personal Products Worldwide | 908-433-6423 USA EST | mlynch23@its.jnj.com |
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| ID | Term |
|---|---|
| D003807 | Dentin Sensitivity |
| ID | Term |
|---|---|
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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| Fluoride Toothpaste |
| Drug |
Fluoride Toothpaste used daily for 28 days. |
|
|
| Potassium Nitrate Toothpaste | Drug | Potassium Nitrate Toothpaste used daily for 28 days. |
|
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| 2 weeks |
| Mean Tactile Sensitivity VAS Score at Week 4 | Tooth sensitivity was measured using a Visual Analogue Scale (VAS). At each visit, participants rated their perception of the pain/discomfort experienced from the Yeaple probe by marking a single vertical line on a VAS scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The investigator recorded a VAS score of 0 mm for participants who did not experience discomfort at the maximum force of 80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | 4 weeks |
| Mean Cold Air Stimulus VAS Score at Week 2 | Tooth sensitivity was measured using a Cold Air Stimulus. When being assessed, participants rated their perception of the pain/discomfort experienced when cold air was directed at the exposed root of each tooth by marking a single vertical line on a Visual Analogue Scale (VAS) scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | 2 weeks |
| Mean Cold Air Stimulus VAS Score at Week 4 | Tooth sensitivity was measured using a Cold Air Stimulus. When being assessed, participants rated their perception of the pain/discomfort experienced when cold air was directed at the exposed root of each tooth by marking a single vertical line on a Visual Analogue Scale (VAS) scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | 4 weeks |
| Withdrawal by Subject |
|
| Lost to Follow-up |
|
| BG002 | Potassium Oxalate Mouthrinse | Potassium Oxalate Mouthrinse (experimental group)(12027-033). |
| BG003 | Total | Total of all reporting groups |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
5% Potassium Nitrate Dentifrice (Positive Control) (UPC #310158077046) |
| OG002 | Potassium Oxalate Mouthrinse | Potassium Oxalate Mouthrinse (experimental group)(12027-033) |
|
|
|
| Primary | Mean Tactile Sensitivity Score at Week 2 | Tooth sensitivity was measured using a Yeaple probe. The force at which discomfort was felt by the participant was recorded on a scale of 10-80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | Analysis was based on the Intent-to-Treat (ITT) analysis set, defined as all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment. | Posted | Least Squares Mean | Standard Error | grams of force | 2 weeks |
|
|
|
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| Secondary | Mean Tactile Sensitivity VAS Score at Week 2 | Tooth sensitivity was measured using a Visual Analogue Scale (VAS). At each visit, participants rated their perception of the pain/discomfort experienced from the Yeaple probe by marking a single vertical line on a VAS scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The investigator recorded a VAS score of 0 mm for participants who did not experience discomfort at the maximum force of 80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | Analysis was based on the Intent-to-Treat (ITT) analysis set, defined as all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment. | Posted | Least Squares Mean | Standard Error | units on a scale (mm) | 2 weeks |
|
|
|
|
| Secondary | Mean Tactile Sensitivity VAS Score at Week 4 | Tooth sensitivity was measured using a Visual Analogue Scale (VAS). At each visit, participants rated their perception of the pain/discomfort experienced from the Yeaple probe by marking a single vertical line on a VAS scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The investigator recorded a VAS score of 0 mm for participants who did not experience discomfort at the maximum force of 80 grams. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | Analysis was based on the Intent-to-Treat (ITT) analysis set, defined as all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment. | Posted | Least Squares Mean | Standard Error | units on a scale (mm) | 4 weeks |
|
|
|
|
| Secondary | Mean Cold Air Stimulus VAS Score at Week 2 | Tooth sensitivity was measured using a Cold Air Stimulus. When being assessed, participants rated their perception of the pain/discomfort experienced when cold air was directed at the exposed root of each tooth by marking a single vertical line on a Visual Analogue Scale (VAS) scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | Analysis was based on the Intent-to-Treat (ITT) analysis set, defined as all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment. | Posted | Least Squares Mean | Standard Error | units on a scale (mm) | 2 weeks |
|
|
|
|
| Secondary | Mean Cold Air Stimulus VAS Score at Week 4 | Tooth sensitivity was measured using a Cold Air Stimulus. When being assessed, participants rated their perception of the pain/discomfort experienced when cold air was directed at the exposed root of each tooth by marking a single vertical line on a Visual Analogue Scale (VAS) scale from 0 to 100 mm, where 0 = No Pain/Discomfort and 100 = Intense Pain/Discomfort. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm. The score for each participant was calculated by averaging the scores for all study teeth for that participant. | Analysis was based on the Intent-to-Treat (ITT) analysis set, defined as all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment. | Posted | Least Squares Mean | Standard Error | units on a scale (mm) | 4 weeks |
|
|
|
|
| 0 |
| 51 |
| 0 |
| 51 |
| EG001 | Sensodyne Toothpaste | 5% Potassium Nitrate Dentifrice (Positive Control) (UPC #310158077046). | 0 | 51 | 0 | 51 |
| EG002 | Potassium Oxalate Mouthrinse | Potassium Oxalate Mouthrinse (experimental group)(12027-033). | 0 | 51 | 0 | 51 |
Principal investigator agreed not to publish the study results without prior sponsor approval.
| Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean tactile sensitivity (Yeaple probe) score. | 0.881 | The significance threshold level was 0.05 (two-sided). Family-wise error was controlled at 0.05. | Mean Difference (Final Values) | 0.18 | Standard Error of the Mean | 1.183 | 2-Sided | 95 | -2.16 | 2.52 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean tactile sensitivity (Yeaple probe) score. | <0.001 | Significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | 5.91 | Standard Error of the Mean | 1.182 | 2-Sided | 95 | 3.57 | 8.24 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean tactile sensitivity VAS score. | 0.964 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | 0.13 | Standard Error of the Mean | 2.860 | 2-Sided | 95 | -5.52 | 5.78 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean tactile sensitivity VAS score. | 0.017 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | -6.85 | Standard Error of the Mean | 2.845 | 2-Sided | 95 | -12.47 | -1.23 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean tactile sensitivity VAS score. | 0.130 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | 5.06 | Standard Error of the Mean | 3.317 | 2-Sided | 95 | -1.50 | 11.61 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean tactile sensitivity VAS score. | <0.001 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | -11.98 | Standard Error of the Mean | 3.313 | 2-Sided | 95 | -18.53 | -5.43 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean air stimulus VAS score. | 0.179 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | 4.26 | Standard Error of the Mean | 3.160 | 2-Sided | 95 | -1.98 | 10.51 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean air stimulus VAS score. | <0.001 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | -12.52 | Standard Error of the Mean | 3.172 | 2-Sided | 95 | -18.79 | -6.25 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean air stimulus VAS score. | 0.119 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | 5.54 | Standard Error of the Mean | 3.534 | 2-Sided | 95 | -1.44 | 12.53 | No | Superiority or Other |
| The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups. | ANCOVA | Terms included treatment and baseline mean air stimulus VAS score. | <0.001 | The significance threshold level was 0.05 (two-sided), with no multiple comparisons adjustment. | Mean Difference (Final Values) | -17.47 | Standard Error of the Mean | 3.566 | 2-Sided | 95 | -24.52 | -10.42 | No | Superiority or Other |