NCT03429829

Brief Summary

This cluster-randomized controlled community trial aimed to assess the efficacy and costs of fluoride varnish application for caries prevention in a high-risk population in South Africa.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
513

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2018

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 29, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

February 12, 2018

Completed
Same day until next milestone

Study Start

First participant enrolled

February 12, 2018

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 19, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 19, 2020

Completed
Last Updated

April 20, 2022

Status Verified

April 1, 2022

Enrollment Period

2 years

First QC Date

January 29, 2018

Last Update Submit

April 19, 2022

Conditions

Keywords

CariesFluoride VarnishDental HealthCosts

Outcome Measures

Primary Outcomes (1)

  • Increment of teeth with cavitated lesions, restorations or extraction.

    The primary outcome was the increment of teeth with cavitated lesions (i.e. newly developed ones or progressed, formerly non-cavitated lesions), requiring restorations or extraction.

    2 years

Secondary Outcomes (3)

  • Increment of teeth with cavitated lesions or restorations.

    2 years

  • Increment of extracted teeth.

    2 years

  • Cost

    2 years

Study Arms (2)

Flairesse varnish

EXPERIMENTAL

Children were part of the LiveSmart tooth brushing program. They all received a new toothbrush at baseline and at every follow-up visit as well as fluoridated toothpaste. Their daily toothbrushing was supervised by the local trained non-professional assistant. In addition, fluoride varnish (22.600 ppm, DMG, Hamburg, Germany) was applied in 3-monthly intervals by the local non-professional assistants who had been trained beforehand and supervised at the first application.

Device: Flairesse varnish

Control

NO INTERVENTION

Children were part of the LiveSmart tooth brushing program. They all received a new toothbrush at baseline and at every follow-up visit as well as toothpaste. Their daily toothbrushing was supervised by the local trained non-professional assistant. Beyond that, the children in this arm were left untreated.

Interventions

Flairesse is applied to enamel and dentine as protective varnish to prevent caries formation and to promote remineralization of initial caries. It is also used in the treatment of hypersensitive teeth by sealing dentin tubules and hypersensitive areas at the neck of the tooth and exposed root dentine. Flairesse varnish contains xylitol and fluoride (22,600 ppm). Both components have been well established for oral health by reducing caries prevalence and incidences. During the application, children sat upright; their teeth were first cleaned and dried with cotton wool rolls. After mixing the fluoride varnish, it was applied as a thin layer to all surfaces of the lower and upper dentition, including proximal surfaces (using floss in case of tight contact points) as well as pits and fissures (using a small brush that was provided together with the varnish by the manufacturer). Children were advised not to drink or eat directly after the application, while this could not be controlled.

Flairesse varnish

Eligibility Criteria

Age4 Years - 8 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Reception grad or grade 1 (age 4-8)
  • Signed consent form
  • Good general health

You may not qualify if:

  • Any allergies (especially sticking plaster)
  • History of asthma
  • Chronic Ulcerated gums
  • Chronic Stomatis
  • Participation in other study (except LifeSmart)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Itsitsa Primary School

Mfuleni, Western Cape, 7100, South Africa

Location

Nyameko Primary School

Mfuleni, Western Cape, 7100, South Africa

Location

MeSH Terms

Conditions

Dental CariesMouth Diseases

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Children in the reception grade and grade 1 of two schools in a township in South Africa are class-wise cluster-randomized to the fluoride varnish or control groups.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 29, 2018

First Posted

February 12, 2018

Study Start

February 12, 2018

Primary Completion

February 19, 2020

Study Completion

February 19, 2020

Last Updated

April 20, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations