CClinicalTrials.gg
Status unknownNCT04096599Updated Sep 20, 2019

Is Xylitol Toothpaste Effective in Preventing Tooth Decay?

An interventional study of Xylitol toothpaste and Fluoride toothpaste in Dental Caries, sponsored by Dr. Gillian Lee. Status unknown at 1 site in China. Per ClinicalTrials.gov, last updated 2019-09-20.

Sponsored by Dr. Gillian Lee · Not applicable, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Sep 2019), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Nov 2018, registered Sep 2019).
Phase
Not applicable
Study type
Interventional
Enrollment
579
Allocation
Randomized
Sex
All
01

Study summary

The study will identify children at high caries risk and then advise/instruct their parents/caregivers in practicing evidence-based risk-based at home preventive measures for their infants with daily use of xylitol or fluoride toothpaste. This study plan to invite the children aged 12-15 months old with high caries risk to do the clinical trial. Every infants will be randomly allocated into two groups. Participants in the test group will be asked to use xylitol (20%) toothpaste to brush their teeth twice every day with the help of caregivers. Participants in the test control group will be asked to use fluoride (1000ppm) toothpaste to brush their teeth twice every day with the help of caregivers. The same oral health instruction and children' diet instruction will be done for every participant's caregivers.

For every dental examination, clinical chatting form for the children will be collected after filling in by examiner. Questionnaire will be collected after filling in by the caregivers. And infants' plaque and saliva will be collected to detect the S. mutans level. We plan to do the dental examination three times for one infant including the first time recruiting, one year follow-up, and two year follow-up.

The establishments of the good oral health-related habits will safeguard and have sustained benefits for the children. The study can provide evidence on the effectiveness of xylitol toothpaste and risk of high fluoride toothpaste among young children. In the long term, the findings of the study might serve as a foundation for establishing an effective oral health care promotion programme throughout Hong Kong and beyond. The framework, if shown to be effective, could help development of the oral health policies and promotion programmes to achieve better oral health among young children eventually.

02

Conditions studied

  • Dental Caries

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03

In context

Dental Caries

1,109 studies on the registry are indexed under Dental Caries; 197 are open to participants now.

This study's enrollment of 579 is above the median of 60 across 916 interventional studies indexed under Dental Caries.

Browse Dental Caries studies →

Lead sponsor

This is the only study on the registry with Dr. Gillian Lee as lead sponsor.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

Infants aged 12-15 months old with high caries risk

Exclusion criteria

Exclusion Criteria:

Infants who has systematical disease

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
579 participants (actual)

Study arms

  • Experimental
    Test group

    Other: Xylitol toothpaste

  • Active comparator
    Control group

    Other: Fluoride toothpaste

Interventions

  • OtherXylitol toothpaste

    At-home preventive measures + xylitol-containing (25%) toothpaste

  • OtherFluoride toothpaste

    At-home preventive measures + fluoride (1000 ppm F) toothpaste

06

What researchers measure

Primary outcomes

  1. Clinical chatting form

    Dental caries: Active caries into dentine will be diagnosed at the cavitation level through careful visual inspection. A ball-ended CPI probe will be used to remove food debris or plaque that may obscure visual inspection whenever it is necessary. The degree and severity of the carious lesions will be recorded using ICDAS caries severity codes (Pitts, 2004). Oral hygiene status (VPI): The presence or absence of visible plaque (VPI) on the buccal and lingual surfaces of all primary teeth will be recorded.

    Time frame: 2 years

  2. Questionnaire

    Questionnaire At the recruitment and before each dental examination, the parent will be asked to complete a questionnaire that assesses their oral health knowledge (causes and prevention of dental caries and periodontal disease), oral health attitude (importance of oral health, the importance of retaining natural teeth, dental service utilisation, and dental health beliefs), and the oral health behaviours of themselves (oral hygiene practices, use of fluoride products and dental attendance patterns) and their infants (feeding, dietary, oral hygiene and toothbrushing habits).

    Time frame: 2 years

  3. MS quantitation

    Plaque and saliva samples will be collected from the surfaces of the primary teeth and then processed following the protocol by Paster et al. (2001). 'Species-specific' Taqman (real-time) quantitative polymerase chain reaction (Q-RT-PCR) will be used to provide DNA template for quantitative analysis of S. mutans levels

    Time frame: 2 years

07

Study locations

1 site
  • Paediatric Dentistry
    Hong Kong, China
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 20, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04096599
Lead sponsor
Dr. Gillian Lee
Responsible party
Dr. Gillian Lee (Clinical Assistant Professor, The University of Hong Kong) — Sponsor-investigator
First posted
Sep 20, 2019
Start date
Nov 18, 2018
Primary completion
Jun 6, 2019
Completion
Jun 6, 2021 (estimated)
Last update
Sep 20, 2019

Study contacts

Gillian Lee, Doctor
study chair · The University of Hong Kong

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2019. You cannot join it, but the record below documents what was studied.

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