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Tooth Sensitivity Relief by Two Mouthrinses

Evaluation of the Efficacy of Two Potassium Oxalate Containing Mouthrinses for Relieving Dentinal Hypersensitivity

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01133379
Enrollment
174
Registered
2010-05-28
Start date
2010-05-31
Completion date
2010-07-31
Last updated
2015-07-09

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

Conditions

Dentin Sensitivity

Brief summary

This study is for people with sensitive teeth and involves going to the dentist for 6 visits over 8 weeks. During the first 2 weeks, everyone will just brush their teeth two times a day with the fluoride toothpaste provided. Then you will be assigned to a mouthwash group if you qualify to continue in the study. Two groups will get mouthwash with a certain amount of an experimental ingredient and one group will get a mouthwash with no experimental ingredients. You will have an equal chance of being assigned to any one of the three groups. For the next 6 weeks, you will rinse with your assigned mouthwash after brushing. A dentist will look at your mouth, teeth, tongue and gums and check for sensitive teeth. The investigators will see if the mouthwash helps to reduce tooth sensitivity during the study.

Detailed description

This is a double-blind, randomized, parallel group, single center, controlled clinical trial design. Approximately 200 generally healthy adults meeting the necessary inclusion/exclusion criteria will be enrolled so that 180 subjects (60 per treatment group) would reasonably be expected to complete the study. Subjects will have their oral soft/hard tissues assessed and will be evaluated for sensitivity levels at Screening (visit 1), Baseline (visit 2), Week 1, Week 2, Week 4 & Week 6. During the first two weeks of the study, subjects will be instructed to brush their teeth for one minute in their usual manner, twice daily using the provided standard fluoride toothpaste. Subjects will return for the Baseline exam and, upon qualification with entry criteria, will be assigned to one of three treatment groups. Qualified subjects will be instructed to brush their teeth two times daily for one minute in their usual manner using the provided standard fluoride toothpaste. Subjects will be instructed to rinse twice daily, after brushing, with the provided mouthrinse for 60 seconds using 10 ml or 20 ml (depending on the treatment group), for 6 consecutive weeks.

Interventions

DEVICE12027-019

Rinse with 10 mL for 60 seconds twice daily after brushing in your usual manner for 1 minute using at least a one-inch strip of the assigned toothpaste.

DEVICE12027-020

Rinse with 20 mL for 60 seconds twice daily after brushing in your usual manner for 1 minute using at least a one-inch strip of the assigned toothpaste.

DEVICE12027-021

Rinse with 10 mL for 60 seconds twice daily after brushing in your usual manner for 1 minute using at least a one-inch strip of the assigned toothpaste

Sponsors

Johnson & Johnson Consumer and Personal Products Worldwide
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Males and females at least 18 years of age in good general and oral health without any known allergy to commercial dental products or cosmetics. * Evidence of a personally signed and dated informed consent document indicating the subject (or legally acceptable representative) has been informed of all pertinent aspects of the trial * Willingness to use the assigned products according to instructions, availability for appointments, and likelihood of completing the clinical trial. * A minimum of 2 natural premolars, canines, and/or incisors teeth with decay-free scorable facial/buccal surfaces which must present cervical abrasion, and/or erosion and/or gingival recession. * A minimum of two eligible teeth (premolars, canines and/or incisors) with a Screening (-2 weeks Baseline) and Baseline tactile sensitivity score between 10 - 50 grams after application of the Yeaple probe and a cold air stimulus VAS score of 30 - 80 mm on a 100 mm VAS scale will be followed as study teeth during the trial. * No more than two eligible teeth per quadrant each separated by 2 other teeth must be selected.Absence of significant oral soft tissue pathology, based on the dentist's visual examination and at the discretion of the investigator. * Adequate oral hygiene (i.e. brush teeth daily and exhibit no signs of oral neglect). * Absence of severe marginal gingivitis, moderate/advanced periodontitis (ADA Type III, IV) based on a clinical examination and discretion of the Investigator. * Absence of extensive supragingival calculus.

Exclusion criteria

* Volunteers who report history or presence of kidney disorders, kidney stones, eating disorders, uncontrolled GERD, excessive dietary or environmental exposure to acids, or other systemic conditions that are predisposing to dentinal hypersensitivity. * Volunteers with chronic medical debilitating disease associated with constant or intermittent episodes of daily pain. * Long-term daily use (≥ 7 consecutive days) of analgesics and any other drugs that at the discretion of the Investigator would compromise the response of the hypersensitivity assessments. * Volunteers who have been using any home-care bleaching, whitening products or have had a professional bleaching treatment within 4 weeks of the Screening visit. * Use of desensitizing agents whether prescribed or over-the-counter within eight weeks prior to screening visit (any sensitivity toothpastes such as Crest Sensitivity, Sensodyne, Crest Pro-Health, Colgate Sensitivity Relief, any mouthwash and oral care products used for the treatment of dentinal hypersensitivity). * Volunteers who during the study will receive dental treatment which may affect their dentinal hypersensitivity condition (i.e. oral prophylaxis). Emergency treatment will be allowed. * Those requiring antibiotic premedication prior to invasive dental procedures. * Participation in a dental clinical trial involving oral care products within the past 30 days. * Women who are pregnant, nursing or plan to become pregnant during the course of the study. * Teeth that are grossly carious, orthodontically banded, abutment teeth for fixed or removable prostheses, crowned teeth, or third molars will not be included in the study. * Periodontal surgery and orthodontic treatment within previous 3 months. * Extensive restorative treatment (i.e. extensively restored teeth or teeth with restoration(s) extending into the test area) at the discretion of the Investigator. * Dental prophylaxis within 2 weeks prior to Screening visit. * Teeth or periodontium with pathology or defect likely to cause pain. * Teeth with clinical mobility \> grade 1.

Design outcomes

Primary

MeasureTime frameDescription
Mean Tactile Sensitivity Score at Week 66 WeeksTooth 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, at each visit.
Mean Tactile Sensitivity Score at Week 44 WeeksTooth 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, at each visit.
Mean Tactile Sensitivity Score at Week 22 WeeksTooth 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, at each visit.
Mean Tactile Sensitivity Score at Week 11 WeekTooth 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, at each visit.

Secondary

MeasureTime frameDescription
Mean Cold Air Stimulus VAS Score at Week 11 WeekTooth 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.
Mean Cold Air Stimulus VAS Score at Week 22 WeeksTooth 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.
Mean Cold Air Stimulus VAS Score at Week 44 WeeksTooth 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.
Mean Cold Air Stimulus VAS Score at Week 66 WeeksTooth 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.
Mean Tactile Sensitivity VAS Score at Week 11 WeekTooth 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.
Global Subjective VAS Score at Week 22 WeeksAt Week 2, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last two weeks when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.
Global Subjective VAS Score at Week 44 WeeksAt Week 4, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last two weeks when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.
Global Subjective VAS Score at Week 66 WeeksAt Week 6, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last two weeks when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.
Global Subjective VAS Score at Week 11 WeekAt Week 1, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last week when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.
Mean Tactile Sensitivity VAS Score at Week 22 WeeksTooth 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.
Mean Tactile Sensitivity VAS Score at Week 44 WeeksTooth 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.
Mean Tactile Sensitivity VAS Score at Week 66 WeeksTooth 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.

Countries

United States

Participant flow

Participants by arm

ArmCount
12027-021 (Vehicle Control)
Vehicle Control Mouth Rinse (without Potassium Oxalate and without Fluoride) (10 mL)
58
12027-019
1.40% Potassium Oxalate Sensitive Mouth Rinse without Fluoride (10 mL)
58
12027-020
1.40% Potassium Oxalate Sensitive Mouth Rinse with Fluoride (20 mL)
58
Total174

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up111
Overall StudyWithdrawal by Subject011

Baseline characteristics

Characteristic12027-021 (Vehicle Control)12027-01912027-020Total
Age, Continuous35.2 years
STANDARD_DEVIATION 11.36
33.9 years
STANDARD_DEVIATION 10.98
35.8 years
STANDARD_DEVIATION 11.98
35.0 years
STANDARD_DEVIATION 11.41
Region of Enrollment
USA
58 participants58 participants58 participants174 participants
Sex: Female, Male
Female
43 Participants42 Participants42 Participants127 Participants
Sex: Female, Male
Male
15 Participants16 Participants16 Participants47 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 580 / 580 / 58
serious
Total, serious adverse events
0 / 580 / 580 / 58

Outcome results

Primary

Mean Tactile Sensitivity Score at Week 1

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, at each visit.

Time frame: 1 Week

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity Score at Week 115.99 gramsStandard Error 0.944
12027-019Mean Tactile Sensitivity Score at Week 115.04 gramsStandard Error 0.941
12027-020Mean Tactile Sensitivity Score at Week 115.03 gramsStandard Error 0.941
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.47795% CI: [-3.59, 1.69]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.47295% CI: [-3.6, 1.67]ANCOVA
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, at each visit.

Time frame: 2 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity Score at Week 222.27 gramsStandard Error 1.838
12027-019Mean Tactile Sensitivity Score at Week 222.59 gramsStandard Error 1.849
12027-020Mean Tactile Sensitivity Score at Week 218.28 gramsStandard Error 1.849
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.90495% CI: [-4.84, 5.47]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.12995% CI: [-9.15, 1.17]ANCOVA
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, at each visit.

Time frame: 4 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity Score at Week 430.58 gramsStandard Error 2.793
12027-019Mean Tactile Sensitivity Score at Week 431.69 gramsStandard Error 2.809
12027-020Mean Tactile Sensitivity Score at Week 425.66 gramsStandard Error 2.809
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.77995% CI: [-6.72, 8.95]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.21795% CI: [-12.8, 2.92]ANCOVA
Primary

Mean Tactile Sensitivity Score at Week 6

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, at each visit.

Time frame: 6 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity Score at Week 637.91 gramsStandard Error 3.342
12027-019Mean Tactile Sensitivity Score at Week 636.77 gramsStandard Error 3.362
12027-020Mean Tactile Sensitivity Score at Week 630.16 gramsStandard Error 3.362
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.81195% CI: [-10.5, 8.24]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.10595% CI: [-17.1, 1.63]ANCOVA
Secondary

Global Subjective VAS Score at Week 1

At Week 1, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last week when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.

Time frame: 1 Week

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Global Subjective VAS Score at Week 147.54 units on a scale (mm)Standard Error 1.675
12027-019Global Subjective VAS Score at Week 148.51 units on a scale (mm)Standard Error 1.676
12027-020Global Subjective VAS Score at Week 147.28 units on a scale (mm)Standard Error 1.677
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.68395% CI: [-3.71, 5.65]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.91495% CI: [-4.94, 4.42]ANCOVA
Secondary

Global Subjective VAS Score at Week 2

At Week 2, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last two weeks when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.

Time frame: 2 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Global Subjective VAS Score at Week 244.12 units on a scale (mm)Standard Error 2.108
12027-019Global Subjective VAS Score at Week 237.93 units on a scale (mm)Standard Error 2.128
12027-020Global Subjective VAS Score at Week 238.02 units on a scale (mm)Standard Error 2.129
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.0495% CI: [-12.1, -0.27]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.04395% CI: [-12, -0.18]ANCOVA
Secondary

Global Subjective VAS Score at Week 4

At Week 4, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last two weeks when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.

Time frame: 4 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Global Subjective VAS Score at Week 435.92 units on a scale (mm)Standard Error 2.48
12027-019Global Subjective VAS Score at Week 433.60 units on a scale (mm)Standard Error 2.503
12027-020Global Subjective VAS Score at Week 431.85 units on a scale (mm)Standard Error 2.504
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.51195% CI: [-9.27, 4.64]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.2595% CI: [-11, 2.89]ANCOVA
Secondary

Global Subjective VAS Score at Week 6

At Week 6, participants rated their perception of the pain/discomfort experienced 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. Participants were instructed as follows: Please rate the intensity of the pain/discomfort you have experienced in the last two weeks when drinking cold/hot beverages and/or foods, eating sweet and sour foods, breathing cold air, brushing your teeth or performing any habits/behaviors that solicit your dentinal hypersensitivity pain/discomfort since you first started using the product. The dental recorder measured the length of the line from 0 to the participant's line and recorded the VAS score in mm.

Time frame: 6 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Global Subjective VAS Score at Week 631.15 units on a scale (mm)Standard Error 2.593
12027-019Global Subjective VAS Score at Week 626.74 units on a scale (mm)Standard Error 2.617
12027-020Global Subjective VAS Score at Week 625.31 units on a scale (mm)Standard Error 2.619
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.23395% CI: [-11.7, 2.86]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.11595% CI: [-13.1, 1.44]ANCOVA
Secondary

Mean Cold Air Stimulus VAS Score at Week 1

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.

Time frame: 1 Week

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Cold Air Stimulus VAS Score at Week 144.18 units on a scale (mm)Standard Error 1.894
12027-019Mean Cold Air Stimulus VAS Score at Week 141.72 units on a scale (mm)Standard Error 1.893
12027-020Mean Cold Air Stimulus VAS Score at Week 140.30 units on a scale (mm)Standard Error 1.893
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.3695% CI: [-7.75, 2.83]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.14995% CI: [-9.17, 1.41]ANCOVA
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.

Time frame: 2 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Cold Air Stimulus VAS Score at Week 240.56 units on a scale (mm)Standard Error 2.277
12027-019Mean Cold Air Stimulus VAS Score at Week 237.95 units on a scale (mm)Standard Error 2.296
12027-020Mean Cold Air Stimulus VAS Score at Week 236.90 units on a scale (mm)Standard Error 2.296
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.42195% CI: [-9, 3.78]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.2695% CI: [-10, 2.73]ANCOVA
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.

Time frame: 4 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Cold Air Stimulus VAS Score at Week 431.92 units on a scale (mm)Standard Error 2.534
12027-019Mean Cold Air Stimulus VAS Score at Week 431.87 units on a scale (mm)Standard Error 2.556
12027-020Mean Cold Air Stimulus VAS Score at Week 430.63 units on a scale (mm)Standard Error 2.555
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.98995% CI: [-7.16, 7.06]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.72195% CI: [-8.39, 5.82]ANCOVA
Secondary

Mean Cold Air Stimulus VAS Score at Week 6

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.

Time frame: 6 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Cold Air Stimulus VAS Score at Week 626.61 units on a scale (mm)Standard Error 2.597
12027-019Mean Cold Air Stimulus VAS Score at Week 625.40 units on a scale (mm)Standard Error 2.619
12027-020Mean Cold Air Stimulus VAS Score at Week 626.28 units on a scale (mm)Standard Error 2.618
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.74395% CI: [-8.5, 6.07]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.92895% CI: [-7.61, 6.95]ANCOVA
Secondary

Mean Tactile Sensitivity VAS Score at Week 1

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.

Time frame: 1 Week

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity VAS Score at Week 140.09 units on a scale (mm)Standard Error 1.926
12027-019Mean Tactile Sensitivity VAS Score at Week 139.61 units on a scale (mm)Standard Error 1.927
12027-020Mean Tactile Sensitivity VAS Score at Week 139.27 units on a scale (mm)Standard Error 1.926
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.8695% CI: [-5.86, 4.9]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.76395% CI: [-6.2, 4.55]ANCOVA
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.

Time frame: 2 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity VAS Score at Week 237.69 units on a scale (mm)Standard Error 2.01
12027-019Mean Tactile Sensitivity VAS Score at Week 235.71 units on a scale (mm)Standard Error 2.028
12027-020Mean Tactile Sensitivity VAS Score at Week 234.79 units on a scale (mm)Standard Error 2.027
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.48895% CI: [-7.62, 3.66]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groupsp-value: 0.31195% CI: [-8.54, 2.73]ANCOVA
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.

Time frame: 4 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity VAS Score at Week 431.06 units on a scale (mm)Standard Error 2.448
12027-019Mean Tactile Sensitivity VAS Score at Week 429.25 units on a scale (mm)Standard Error 2.469
12027-020Mean Tactile Sensitivity VAS Score at Week 432.97 units on a scale (mm)Standard Error 2.469
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.60495% CI: [-8.68, 5.06]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.58395% CI: [-4.95, 8.78]ANCOVA
Secondary

Mean Tactile Sensitivity VAS Score at Week 6

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.

Time frame: 6 Weeks

Population: Analysis was based on the Intent-to-Treat Analysis Set, which included all randomized participants who used at least one dose of the study product and had baseline and at least one post-baseline efficacy assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
12027-021 (Vehicle Control)Mean Tactile Sensitivity VAS Score at Week 625.50 units on a scale (mm)Standard Error 2.541
12027-019Mean Tactile Sensitivity VAS Score at Week 624.80 units on a scale (mm)Standard Error 2.563
12027-020Mean Tactile Sensitivity VAS Score at Week 626.86 units on a scale (mm)Standard Error 2.563
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.84795% CI: [-7.83, 6.43]ANCOVA
Comparison: The null hypothesis was no difference in mean outcome between treatment groups. The alternative hypothesis was a difference in mean outcome between treatment groups.p-value: 0.70895% CI: [-5.77, 8.48]ANCOVA

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