Can Surface Roughness Predict Progression of Tooth Wear?

June 5, 2017 updated by: King's College London

Can Surface Roughness Predict Progression of Tooth Wear in Participants With Dietary Origins of Acid?

The clinical study was a single-blind, randomised intervention study to measure surface changes of polished and unpolished enamel in situ following an orange juice acid challenge. Ethical approval for the study was granted by the Stanmore Health Research Authority REC ref 15/LO/0417, and the study was conducted per the guidelines for Good Clinical Practice. The study investigated a total 6 erosion regimes divided in 3 different erosion times plus ex vivo immersion in orange juice drink versus in vivo rinsing of the same orange juice drink.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

60 unpolished and 60 polished enamel samples were prepared from extracted human molars collected under ethical approval.

30 healthy volunteers were recruited and lower dental impressions were recorded using standard stock trays. Custom made lower orthoodontic type appliances were made by the laboratory to accommodate a total of four enamel (2 left and right hand side) samples positioned buccally in the premolar/molar region.

The volunteers were randomly allocated into one of 3 groups: 5 mins erosion repeated x3, 10 mins erosion repeated x3 or 15 mins erosion repeated x3 and a coin was flipped to determine which side the samples were to be removed for ex vivo immersion with tails for left and heads for right. . At the beginning of the study visit the splints were inserted and worn for 30 minutes. Following which the enamel samples (1 polished and 1 unpolished) were removed from one side to begin the erosion regime. For in vivo erosion each participant was asked to rinse with orange juice for their either time 5, 10 or 15 minutes. This was standardised by setting up cups with 10 mL of the orange juice and a timer set at 1 minute. The participant was asked to insert the liquid into their mouths start the time and when the alarm sounded expectorate and repeat until they completed his/her time allocation of either 5, 10 or 15 minutes. Simultaneously the ex vivo samples were immersed in 20 mL of orange juice and agitated at 62 rpm for the allocated time using an orbital shaker (Stuart Scientific, Mini Orbital Shaker S05, Bibby). This completed one cycle after which the removed samples were reinserted into the splint which was worn for a further hour after which the rinsing/immersion regime was repeated. The process was repeated a further instance to complete 3 cycles of erosion. After the 3rd and final erosion cycle the participants were given a desensitising toothpaste Sensodyne Repair & Protect (GSK, Weybridge, UK).

The unpolished enamel samples were analysed before and after the experiment to measure changes in surface texture. Whereas, the polished samples were analysed for surface texture, hardness change and tissue loss.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • mild erosive tooth wear maximum score of 2 in each sextant and cumulative score no more than 8, aged 18 years and over, willing to participate, not enrolled in any other research, more than 20 anterior and posterior teeth, no active carious lesions and a maximum BPE score of 2 in one sextant (no periodontal disease).

Exclusion Criteria:

  • pregnancy or breast feeding, medical history likely to impact on attendance or mobility, insulin dependent diabetes, saliva diagnoses (xerostomia), lower orthodontic appliances, dentine hypersensitivity, defective restoration of the occlusal or incisal surfaces of upper anterior teeth and first molars and any condition that precluded consumption of 300 ml of orange juice a day for 5 consecutive days.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 15 minutes' erosion
Orange juice is administered ex vivo and in vivo for 5 minutes and repeated a total of 3 times
Other: Orange juice
3 immersion times in orange juice were investigated
Experimental: 30 minutes' erosion
Orange juice is administered ex vivo and in vivo for 10 minutes and repeated a total of 3 times
Other: Orange juice
3 immersion times in orange juice were investigated
Experimental: 45 minutes' erosion
Orange juice is administered ex vivo and in vivo for 15 minutes and repeated a total of 3 times
Other: Orange juice
3 immersion times in orange juice were investigated

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Microhardness (KHN)
Time Frame: 12 weeks
To measure microhardness of enamel samples using a microhardness tester before and after the intervention. The units will be KHN
12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Surface roughness
Time Frame: 12 weeks
To measure surface roughness of enamel samples using anon contact profilometer before and after the intervention. The units will be microns.
12 weeks
Step height loss
Time Frame: 12 weeks
To measure step height loss of enamel samples following the intervention using a non contact profilometer. The units will be microns.
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
King's College London

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
GlaxoSmithKline

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 10, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 29, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 29, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 30, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 5, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 7, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 7, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 5, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 15/LO/0417

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Tooth Wear

Clinical Trials on Orange juice

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings