Dentin SensitivityNCT02189382
Evaluation of the Safety and Efficacy of an Oxalate Gel or Negative Control on Dentinal Hypersensitivity
A study testing Potassium Oxalate and Water in people with Dentin Sensitivity, run by Procter and Gamble at 1 site in United States.
Trial summary
This study will compare the safety and effectiveness of a potassium oxalate desensitizer or negative control on dentinal hypersensitivity. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Dentin Sensitivity
- What is being tested?
- Potassium Oxalate and Water
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 70 participants
- Where
- 1 siteUnited States
- Study dates
- Jun 2014to Jul 2014
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- be at least 18 years of age;
- provide written informed consent prior to participation and be given a signed copy of the informed consent form;
- complete a confidentiality disclosure agreement;
- be in good general health as determined by the Investigator/designee;
- agree not to participate in any other oral/dental product studies during the course of this study;
- agree to delay any dentistry (including dental prophylaxis) until the study has been completed;
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- agree to refrain from the use of any non-study oral hygiene products;
- agree to return for all scheduled visits and follow study procedures; and.
- have at least one tooth with a Schiff sensitivity score of at least 1 in response to air challenge and a Yeaple Probe score of 10-40 in response to tactile challenge
Who cannot join
- self-reported pregnancy or nursing;
- severe periodontal disease, as characterized by purulent exudate, generalized mobility, and/or severe recession;
- active treatment of periodontitis;
- fixed facial orthodontic appliances;
- 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
- any diseases or conditions that might interfere with the safe completion of the study; or
- an inability to undergo any study procedures.
Trial locations and contacts
1 site in 1 country.
About this study
This study will compare the safety and effectiveness of a potassium oxalate desensitizer or negative control on dentinal hypersensitivity.
- Conditions
- Dentin Sensitivity
- Being tested
- Potassium Oxalate, Water
- Keywords
- Sensitivity
- Medical subject headings
- Dentin Sensitivity, Hypersensitivity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Potassium OxalateDevice
WaterOther
| Study group | Role | What they receive |
|---|---|---|
| Potassium Oxalate Gel | Experimental | Self Applied Receives: Device: Potassium Oxalate |
| Water | Other | Self Applied Receives: Other: Water |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline 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. The higher the Schiff score, the more sensitive the tooth. The mean change from Baseline was calculated for this measure.
Measured: 30 days
Secondary outcomes (1)
Change From Baseline in Tactile Threshold
Tactile Threshold was measured using a Yeaple probe. Testing was performed beginning at 10 g. The examiner recorded tactile scores for responding teeth. After treatment, testing began at 10 g and increase by 10 g to a maximum of 50 g. The higher the tactile threshold, the less sensitive the tooth. Each successive challenge increased until a "yes" response was repeated. If a second "yes" was not obtained, the force setting was increased to the next step and continued until a force was found which elicited two consecutive "yes" responses and was recorded as the threshold on the Tactile Sensitivity Score form. The mean change from Baseline was calculated for this measure.
Measured: 30 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Jul 2014 (estimated)
- Study startJun 2014
- Primary completionJul 2014
- Study completionJul 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Dentin SensitivityStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 70 participants (actual)
Sponsor and investigators
- Lead sponsor
- Procter and Gamble
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02189382
- Sponsor's protocol ID
- 2014029
- Status last verified
- Jul 2018
- First submitted
- 8 Jul 2014
- Last updated
- 20 Aug 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 20 Aug 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Safety and Efficacy of an Oxalate Gel or Negative Control on Dentinal Hypersensitivity
- ClinicalTrials.gov ID
- NCT02189382
- Acronym / sponsor ID
- 2014029
- Conditions
- Dentin Sensitivity
- Keywords
- Sensitivity
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 70 participants (actual)
- Lead sponsor
- Procter and GambleIndustry (pharma, biotech, devices)
- Study start
- Jun 2014
- Primary completion
- Jul 2014 (actual)
- Study completion
- Jul 2014 (actual)
- First posted
- 14 Jul 2014 (estimated)
- Results
- Posted 20 Aug 2018
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will compare the safety and effectiveness of a potassium oxalate desensitizer or negative control on dentinal hypersensitivity.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Potassium Oxalate Gel | Experimental | Device: Potassium OxalateSelf Applied |
| Water | Other | Other: WaterSelf Applied |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (9 listed)
- be at least 18 years of age;
- provide written informed consent prior to participation and be given a signed copy of the informed consent form;
- complete a confidentiality disclosure agreement;
- be in good general health as determined by the Investigator/designee;
- agree not to participate in any other oral/dental product studies during the course of this study;
Key exclusion criteria (8 listed)
- self-reported pregnancy or nursing;
- severe periodontal disease, as characterized by purulent exudate, generalized mobility, and/or severe recession;
- active treatment of periodontitis;
- fixed facial orthodontic appliances;
- a history of kidney stones;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Potassium Oxalate | Device | Potassium Oxalate Gel |
| Water | Other | Water |
Primary outcome
Change From Baseline Air Challenge
Time frame: 30 days
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. The higher the Schiff score, the more sensitive the tooth. The mean change from Baseline was calculated for this measure.
1 secondary outcome
Change From Baseline in Tactile Threshold
Time frame: 30 days
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Aug 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Potassium Oxalate and Water in people with Dentin Sensitivity, run by Procter and Gamble at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 9 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 20 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 20 Aug 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Baseline Air Challenge (time frame: 30 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Aug 2018; AzTrials last refreshed its copy on 8 Nov 2026.