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CompletedNCT02676219Updated Jun 8, 2018

Pilot Study Utilising an Impression Technique to Capture in Vivo Images of Teeth

An interventional study of RS01 and Water in Tooth Erosion, sponsored by Unilever R&D. Completed at 1 site in United Kingdom. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-06-08.

Sponsored by Unilever R&D (part of Unilever) · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Jul 2015, registered Dec 2015).
Phase
Not applicable
Study type
Interventional
Enrollment
16
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The study design is a randomised, split mouth, blind with respect to study analysts (microscopist, image grader) two treatment clinical study in 10 healthy participants with sound tooth enamel. The study will comprise of a screening visit, pre-baseline visit and 5 subsequent clinic visits. At the screening visit, participants will give consent to participate in the study. Medical history and concomitant medications will be recorded. Eligibility will be determined following an oral soft tissue (OST) examination and an evaluation of dentition exclusions. Two suitable anterior teeth will be identified for study assessments, these teeth must be at least one tooth apart in the mouth. Saliva samples will be collected from the participants at set points during the study to look at any changes in salivary pH.

02

Conditions studied

  • Tooth Erosion

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03

In context

Tooth Erosion

47 studies on the registry are indexed under Tooth Erosion; 7 are open to participants now.

This study's enrollment of 16 is below the median of 33 across 33 interventional studies indexed under Tooth Erosion.

Browse Tooth Erosion studies →

Lead sponsor

Unilever R&D is the lead sponsor of 71 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Consent: Demonstrates understanding of the study and willingness to participate as evidenced by voluntary written and has received a signed and dated copy of the informed consent form.
  2. Age: Aged at least 18 years.
  3. Compliance: Understands and is willing, able and likely to comply with all study procedures and restrictions.
  4. General Health: Good general health with (in the opinion of the investigator or medically qualified designee) no and relevant abnormalities of medical history or physical examination.
  5. Diagnosis:

    1. Study teeth must show no signs of exposed dentine at the cervical margin.
    2. In the opinion of the investigator the study teeth must have a healthy gingiva as determined during the OST examination.

Exclusion criteria

Exclusion Criteria:

  1. Pregnancy Women who are known to be pregnant or who are intending to become pregnant over the duration of the study.
  2. Breast-feeding Women who are breast-feeding.
  3. Disease

    1. Current or recurrent disease/dental pathology that could affect the assessments.
    2. In the judgement of the investigator or medically qualified designee, any condition or medication which is causing cause Xerostomia.
    3. Diabetes Mellitus.
    4. Susceptibility to acid regurgitation.
    5. Be susceptible to high dental erosion after drinking acidic soft drinks or juices
  4. General Dental Exclusions

    1. Any orthodontic appliances, restorations, bridgework or dentures that would interfere with the study evaluations or scheduled for such treatment within the timescale of the study.
    2. Recurrent or regular aphthous ulcers.
    3. Severe gingivitis, carious lesions treated and untreated periodontal disease.
    4. Excessive signs of dental erosion or a previous history of being susceptible to high dental erosion after drinking acidic drinks
    5. Tooth bleaching within past 2 months.
    6. Suffer from dentine .
  5. Allergy/Intolerance Known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients.
  6. Clinical Study/Experimental Medication

    1. Participation in another clinical study or receipt of an drug within 30 days of the screening visit.
    2. Previous randomisation into this study.
  7. Substance abuse Recent history (within the last year) of alcohol or other substance abuse.
  8. Personnel An employee of the sponsor, member of the study site or a staff family relative. The site for this protocol is the Clinical Trials Unit in the Bristol Dental School and Hospital. Employees of the Bristol Dental School and Hospital not associated with the Clinical Trials Unit are eligible to participate.
  9. Any participant who, in the judgement of the investigator, should not participate in the study.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
16 participants (actual)

Study arms

  • Experimental
    RS01

    oral care product containing containing sodium monofluorophosphate and sodium fluoride

    Other: RS01

  • Placebo comparator
    Water

    Water

    Other: Water

Interventions

  • OtherRS01

    Oral Care product containing sodium monofluorophosphate and sodium fluoride

  • OtherWater
06

What researchers measure

Primary outcomes

  1. changes in enamel surface topography using an impression methodology with scanning electron microscopy

    Time frame: 6 hours

Secondary outcomes

  1. changes in enamel surface topography using an impression methodology with scanning electron microscopy

    Time frame: 2 hours

07

Study locations

1 site
  • School of Oral and Dental Science
    Bristol, BS1 2LY, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 8, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02676219
Lead sponsor
Unilever R&D
Collaborators
University of Bristol Dental Hospital
Responsible party
Sponsor
First posted
Feb 8, 2016
Start date
Jul 1, 2015
Primary completion
Sep 18, 2015
Completion
Sep 18, 2015
Last update
Jun 8, 2018

Study contacts

Nicola X West, BDS
principal investigator · University of Bristol Dental Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2018. You cannot join it, but the record below documents what was studied.

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