Dentin SensitivityPhase 4NCT02731833
Short Term Clinical Study Investigating the Efficacy of an Occluding Dentifrice in Providing Relief From Dentinal Hypersensitivity
A Phase 4 study testing stannous fluoride and sodium monofluorophosphate in people with Dentin Sensitivity, run by GlaxoSmithKline at 1 site in Canada.
Trial summary
This single centre, comparative design study will be used to investigate the efficacy of an experimental stannous fluoride containing dentifrice in relieving dentinal hypersensitivity (DH) after short term use compared with a standard fluoride dentifrice Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Dentin Sensitivity
- What is being tested?
- stannous fluoride and sodium monofluorophosphate
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 229 participants
- Where
- 1 siteCanada
- Study dates
- 1 Apr 2016to 20 May 2016
- Phase
- Phase 4
- 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 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Demonstrates understanding of the study procedures, restrictions and willingness to participate as evidenced by voluntary written informed consent and has received a signed and dated copy of the informed consent form
- Aged 18-65 years inclusive
- Understands and is willing, able and likely to comply with all study procedures and restrictions
- Good general and mental health with, in the opinion of the investigator or medically qualified designee: a) No clinically significant and relevant abnormalities of medical history or oral examination. b) Absence of any condition that would impact on the participant's safety or wellbeing or affect the individual's ability to understand and follow study procedures and requirements
- Self-reported history of dentinal hypersensitivity (DH) lasting more than six months but not more than 10 years
- Minimum of 20 natural teeth
- Minimum of 2 accessible non-adjacent teeth (incisors, canines, pre-molars), preferably in different quadrants, that meet all of the following criteria: Signs of facial/cervical gingival recession and/or signs of erosion or abrasion (EAR), Tooth with MGI score =0 adjacent to the test area (exposed dentine) only [Lobene, 1986] and a clinical mobility of ≤1, Tooth with signs of sensitivity measured by qualifying evaporative air assessment (Y/N response)
- Minimum of two, non-adjacent accessible teeth (incisors, canines, pre-molars), that meet all of the following criteria: Tooth with signs of sensitivity, measured by qualifying tactile stimulus (Yeaple ≤ 20g) and evaporative air assessment (Schiff sensitivity score ≥ 2)
Who cannot join
- Women who are known to be pregnant or who are intending to become pregnant over the duration of the study
- Women who are breast-feeding
- Known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients
- Participation in another clinical study (including cosmetic studies) or receipt of an investigational drug within 30 days of the screening visit.
- Previous participation in this study
- Recent history (within the last year) of alcohol or other substance abuse
Show all 16Show fewer
- An employee of the sponsor or the study site or members of their immediate family
- Presence of chronic debilitating disease which, in the opinion of the investigator, could affect study outcomes or Any condition which, in the opinion of the investigator, causes xerostomia
- Dental prophylaxis within 4 weeks of Screening or Tongue or lip piercing or presence of dental implants
- Gross periodontal disease, treatment of periodontal disease (including surgery) within 12 months of Screening, scaling or root planning within 3 months of Screening and teeth bleaching within 8 weeks of Screening
- Tooth with evidence of current or recent caries, or reported treatment of decay within 12 months of Screening
- Tooth with exposed dentine but with deep, defective or facial restorations, teeth used as abutments for fixed or removable partial dentures, teeth with full crowns or veneers, orthodontic bands or cracked enamel. Sensitive teeth with contributing aetiologies other than erosion, abrasion or recession of exposed dentine
- Sensitive tooth not expected to respond to treatment with an over-the-counter dentifrice in the opinion of the investigator
- Use of an oral care product indicated for the relief of dentine hypersensitivity within 8 weeks of screening (participants will be required to bring their current oral care products to the site in order to verify the absence of known anti-sensitivity ingredients)
- Daily doses of medication/treatments which, in the opinion of the investigator, could interfere with the perception of pain. Examples of such medications include analgesics, anticonvulsants, antihistamines that cause marked or moderate sedation, sedatives, tranquilisers, anti-depressants, mood-altering and anti-inflammatory drugs
- Currently taking antibiotics or has taken antibiotics within 2 weeks of Baseline
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Clinical Study Investigating the Efficacy of an Occluding Dentifrice in Providing Relief From Dentinal Hypersensitivity
This single centre, comparative design study will be used to investigate the efficacy of an experimental stannous fluoride containing dentifrice in relieving dentinal hypersensitivity (DH) after short term use compared with a standard fluoride dentifrice
Read the detailed description
This will be a single centre, three day, randomised, examiner blind, two treatment arm, parallel design, stratified (by maximum baseline Schiff sensitivity score of the two selected test teeth), controlled study, in participants with at least two sensitive teeth that meet all the criteria at the screening and baseline (pre-treatment) visits. Dentinal hypersensitivity will be assessed at baseline (pre-treatment), post-treatment and after 3 days twice daily brushing
- Conditions
- Dentin Sensitivity
- Being tested
- stannous fluoride, sodium monofluorophosphate
- Medical subject headings
- Dentin Sensitivity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
stannous fluorideOther
0.454% weight by weight (w/w) stannous fluoride containing 1100ppm fluoride
sodium monofluorophosphateOther
0.76% w/w sodium monofluorophosphate containing 1000ppm fluoride
| Study group | Role | What they receive |
|---|---|---|
| Test dentifrice | Experimental | Participants will be instructed to dose a dry toothbrush with a full strip (1 inch) of toothpaste. Participants will then brush each of the two selected sensitive test teeth first followed by the whole mouth thoroughly for at least 1 minute Receives: Other: stannous fluoride |
| Control dentifrice | Active comparator | Participants will be instructed to dose a dry toothbrush with a full strip (1 inch) of toothpaste. Participants will then brush whole mouth thoroughly for at least 1 minute Receives: Other: sodium monofluorophosphate |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Schiff Sensitivity Score on Day 3
The examiner assessed the participant's response to an evaporative air stimulus for each tooth using the Schiff Sensitivity Scale which was scored as follows - 0: Participant does not respond to air stimulation; 1: Participant responded to air stimulus but does not request discontinuation of stimulus; 2: Participant responded to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responded to stimulus, considered stimulus to be painful, and requested discontinuation of the stimulus. A reduction in Schiff Sensitivity score was indicative of an improvement in sensitivity.
Measured: Baseline to Day 3
Secondary outcomes (3)
Change From Baseline in Tactile Threshold on Day 3
The examiner assessed the response to tactile sensitivity using a Yeaple probe which allowed application of a known force to the dentin surface, starting at 10g and rising in increments of 10g until the tactile threshold or maximum force was reached. The tactile threshold for each tooth was determined by asking the participant whether the sensation caused discomfort. The pressure setting at which the participant gives two consecutive 'yes' responses was recorded as the tactile threshold. The higher the tactile threshold, the less sensitive the tooth.
Measured: Baseline to Day 3
Change From Baseline in Schiff Sensitivity Score Post First Treatment by Direct Application
The examiner assessed the participant's response to an evaporative air stimulus for each tooth using the Schiff Sensitivity Scale which was scored as follows - 0: Participant does not respond to air stimulation; 1: Participant responded to air stimulus but does not request discontinuation of stimulus; 2: Participant responded to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responded to stimulus, considered stimulus to be painful, and requested discontinuation of the stimulus. A reduction in Schiff Sensitivity score was indicative of an improvement in sensitivity.
Measured: Baseline to 60 seconds post first treatment
Change From Baseline in Tactile Threshold Post First Treatment by Direct Application
The examiner assessed the response to tactile sensitivity using a Yeaple probe which allowed application of a known force to the dentin surface, starting at 10g and rising in increments of 10g until the tactile threshold or maximum force was reached. The tactile threshold for each tooth was determined by asking the participant whether the sensation caused discomfort. The pressure setting at which the participant gives two consecutive 'yes' responses was recorded as the tactile threshold. The higher the tactile threshold, the less sensitive the tooth.
Measured: Baseline to 60 seconds post first treatment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Apr 2016 (estimated)
- Study start1 Apr 2016
- Primary completion1 May 2016
- Study completion20 May 2016
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.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Dentin SensitivityStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe sponsor's other registered studies.
- 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 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 229 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02731833
- Sponsor's protocol ID
- 205710
- Status last verified
- Apr 2017
- First submitted
- 4 Apr 2016
- Last updated
- 17 May 2017
- Results posted
- Yes, on ClinicalTrials.gov
Publications
Creeth J, Gallob J, Sufi F, Qaqish J, Gomez-Pereira P, Budhawant C, Goyal C. Randomised clinical studies investigating immediate and short-term efficacy of an occluding toothpaste in providing dentine hypersensitivity relief. BMC Oral Health. 2019 Jun 4;19(1):98. doi: 10.1186/s12903-019-0781-x.
PubMed 31164116
Study at a glance
From the registry record, last updated by the sponsor on 17 May 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Clinical Study Investigating the Efficacy of an Occluding Dentifrice in Providing Relief From Dentinal Hypersensitivity
- ClinicalTrials.gov ID
- NCT02731833
- Acronym / sponsor ID
- 205710
- Conditions
- Dentin Sensitivity
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 229 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Study start
- 1 Apr 2016
- Primary completion
- 1 May 2016 (actual)
- Study completion
- 20 May 2016 (actual)
- First posted
- 8 Apr 2016 (estimated)
- Results
- Posted 15 Mar 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This single centre, comparative design study will be used to investigate the efficacy of an experimental stannous fluoride containing dentifrice in relieving dentinal hypersensitivity (DH) after short term use compared with a standard fluoride dentifrice
Detailed description
This will be a single centre, three day, randomised, examiner blind, two treatment arm, parallel design, stratified (by maximum baseline Schiff sensitivity score of the two selected test teeth), controlled study, in participants with at least two sensitive teeth that meet all the criteria at the screening and baseline (pre-treatment) visits. Dentinal hypersensitivity will be assessed at baseline (pre-treatment), post-treatment and after 3 days twice daily brushing
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Test dentifrice | Experimental | Other: stannous fluorideParticipants will be instructed to dose a dry toothbrush with a full strip (1 inch) of toothpaste. Participants will then brush each of the two selected sensitive test teeth first followed by the whole mouth thoroughly for at least 1 minute |
| Control dentifrice | Active comparator | Other: sodium monofluorophosphateParticipants will be instructed to dose a dry toothbrush with a full strip (1 inch) of toothpaste. Participants will then brush whole mouth thoroughly for at least 1 minute |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Demonstrates understanding of the study procedures, restrictions and willingness to participate as evidenced by voluntary written informed consent and has received a signed and dated copy of the informed consent form
- Aged 18-65 years inclusive
- Understands and is willing, able and likely to comply with all study procedures and restrictions
- Good general and mental health with, in the opinion of the investigator or medically qualified designee: a) No clinically significant and relevant abnormalities of medical history or oral examination. b) Absence of any condition that would impact on the participant's safety or wellbeing or affect the individual's ability to understand and follow study procedures and requirements
- Self-reported history of dentinal hypersensitivity (DH) lasting more than six months but not more than 10 years
Key exclusion criteria (16 listed)
- Women who are known to be pregnant or who are intending to become pregnant over the duration of the study
- Women who are breast-feeding
- Known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients
- Participation in another clinical study (including cosmetic studies) or receipt of an investigational drug within 30 days of the screening visit.
- Previous participation in this study
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 |
|---|---|---|
| stannous fluoride0.454% weight by weight (w/w) stannous fluoride containing 1100ppm fluoride | Other | Test dentifrice |
| sodium monofluorophosphate0.76% w/w sodium monofluorophosphate containing 1000ppm fluoride | Other | Control dentifrice |
Primary outcome
Change From Baseline in Schiff Sensitivity Score on Day 3
Time frame: Baseline to Day 3
The examiner assessed the participant's response to an evaporative air stimulus for each tooth using the Schiff Sensitivity Scale which was scored as follows - 0: Participant does not respond to air stimulation; 1: Participant responded to air stimulus but does not request discontinuation of stimulus; 2: Participant responded to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responded to stimulus, considered stimulus to be painful, and requested discontinuation of the stimulus. A reduction in Schiff Sensitivity score was indicative of an improvement in sensitivity.
3 secondary outcomes
Change From Baseline in Tactile Threshold on Day 3
Time frame: Baseline to Day 3
Change From Baseline in Schiff Sensitivity Score Post First Treatment by Direct Application
Time frame: Baseline to 60 seconds post first treatment
Change From Baseline in Tactile Threshold Post First Treatment by Direct Application
Time frame: Baseline to 60 seconds post first treatment
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 May 2017.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 31164116Creeth J, Gallob J, Sufi F, Qaqish J, Gomez-Pereira P, Budhawant C, Goyal C. Randomised clinical studies investigating immediate and short-term efficacy of an occluding toothpaste in providing dentine hypersensitivity relief. BMC Oral Health. 2019 Jun 4;19(1):98. doi: 10.1186/s12903-019-0781-x.
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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.
GSK Clinical Trials study director
GlaxoSmithKline
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing stannous fluoride and sodium monofluorophosphate in people with Dentin Sensitivity, run by GlaxoSmithKline at 1 site in Canada.
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 8 inclusion and 16 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 17 May 2017. 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 Canada. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 15 Mar 2017). 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 in Schiff Sensitivity Score on Day 3 (time frame: Baseline to Day 3). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02731833, which also lists 1 linked publication.
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 17 May 2017; AzTrials last refreshed its copy on 7 Nov 2026.