NCT04096599

Brief 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.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
579

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

November 18, 2018

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 6, 2019

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

September 11, 2019

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 20, 2019

Completed
1.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 6, 2021

Completed
Last Updated

September 20, 2019

Status Verified

September 1, 2019

Enrollment Period

7 months

First QC Date

September 11, 2019

Last Update Submit

September 17, 2019

Conditions

Outcome Measures

Primary Outcomes (3)

  • 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.

    2 years

  • 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).

    2 years

  • 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

    2 years

Study Arms (2)

Test group

EXPERIMENTAL
Other: Xylitol toothpaste

Control group

ACTIVE COMPARATOR
Other: Fluoride toothpaste

Interventions

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

Test group

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

Control group

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Infants aged 12-15 months old with high caries risk

You may not qualify if:

  • Infants who has systematical disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Paediatric Dentistry

Hong Kong, China

Location

MeSH Terms

Conditions

Dental Caries

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

Study Officials

  • Gillian Lee, Doctor

    The University of Hong Kong

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Clinical Assistant Professor

Study Record Dates

First Submitted

September 11, 2019

First Posted

September 20, 2019

Study Start

November 18, 2018

Primary Completion

June 6, 2019

Study Completion

June 6, 2021

Last Updated

September 20, 2019

Record last verified: 2019-09

Locations