NCT01468727

Brief Summary

Mutans streptococci (MS) and lactobacillus species (LB) are the two groups of infectious cariogenic (caries-causing) bacteria most strongly associated with dental caries (dental decay). Infants acquire cariogenic bacteria from their mothers early in development via saliva. There have been several studies that have demonstrated a significant reduction in dental caries associated with consumption of the food additive known as xylitol in children and adults. Xylitol is a non-toxic 5 carbon polyol, approved as a food additive by the FDA, that tastes like and behaves like sucrose in humans. Xylitol is used as a sugar substitute to reduce dental caries as it is not fermentable by the caries causing bacteria. In addition, an observed positive beneficial side effect of this sugar substitute is that xylitol has been shown to reduce mother to child bacterial transfer when used by the mother. It is commonly recommended to wipe infants' teeth and gums with a soft cloth to reduce the formation of dental bacterial plaque. Recently wipes have been marketed that contain xylitol to provide a safe sweet sensation for the infant during this cleaning procedure. However, no study has been conducted that assesses the biological effect of applying xylitol directly to the teeth and gums of infants. This study will be conducted to test whether xylitol applied by swab directly to the infant's teeth and gums will effectively reduce bacterial transfer from mother to child. Children age up to two years old whose mothers have high cariogenic bacterial counts will be recruited to use xylitol wipes 3-4 times daily in addition to their normal preventive regimen. This will be a randomized double blinded study where the control group will receive placebo wipes (with no xylitol) and the experimental group will receive the xylitol wipes. The mother-child pair MS and LB bacterial counts and caries score of the children will be measured at baseline, 3 months, 6 months and 1 year. We will contact all patients that were recruited into the study to inquire whether they are willing to return for further follow-up visits at 1, 2, 3, and 4 years post-wipe treatment completion. If successful, this study will support the use of a simple caries preventive measure that could be easily and safely implemented in young children. Ten MS isolates and unique LB colonies will be isolated from each saliva samples to study their genetic diversities and virulence factors. The investigators will also investigate whether specific MS genes relate to ECC prevention effect of daily xylitol-wipe application using genomic sequencing of MS isolated from current study when the active intervention was applied.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
88

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2007

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2007

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2008

Completed
3.9 years until next milestone

First Submitted

Initial submission to the registry

November 7, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 9, 2011

Completed
Last Updated

November 16, 2011

Status Verified

November 1, 2011

Enrollment Period

1 year

First QC Date

November 7, 2011

Last Update Submit

November 14, 2011

Conditions

Keywords

dental cariesmutans streptococcilactobacillibacterial transmissionbacterial colonization

Outcome Measures

Primary Outcomes (1)

  • new decayed surfaces

    1 year

Secondary Outcomes (2)

  • salivary levels of Mutans Streptococci

    3 month, 6 month, 1 year

  • levels of lactobacilli

    3 month, 6 month, and one year

Study Arms (2)

xylitol wipe

EXPERIMENTAL
Dietary Supplement: xylitol wipe

placebo wipe

PLACEBO COMPARATOR
Dietary Supplement: placebo wipe

Interventions

xylitol wipeDIETARY_SUPPLEMENT

Parents were instructed to wipe their infants' teeth and gums three times per day with two wipes each time after feeding in addition to their daily tooth brushing.

xylitol wipe
placebo wipeDIETARY_SUPPLEMENT

Parents were instructed to wipe their infants' teeth and gums three times per day with two wipes each time after feeding in addition to their daily tooth brushing.

placebo wipe

Eligibility Criteria

Age6 Months - 35 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • mothers presenting with active dental decay or restorations within the past year (high caries risk)
  • mothers who are the primary caregivers for their child
  • healthy children without systemic disease aged 6 months to two years
  • Infants younger than 6 months who have one or more teeth present

You may not qualify if:

  • mother or child with systemic disease
  • antibiotics or medications taken within the previous 3 months that may alter oral flora and saliva flow for mother or child
  • children who primarily receive care in a daycare center or by a caregiver other than the mother

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, San Francisco

San Francisco, California, 94143, United States

Location

Related Publications (1)

  • Zhan L, Cheng J, Chang P, Ngo M, Denbesten PK, Hoover CI, Featherstone JD. Effects of xylitol wipes on cariogenic bacteria and caries in young children. J Dent Res. 2012 Jul;91(7 Suppl):85S-90S. doi: 10.1177/0022034511434354.

MeSH Terms

Conditions

Dental Caries

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

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

Study Record Dates

First Submitted

November 7, 2011

First Posted

November 9, 2011

Study Start

January 1, 2007

Primary Completion

January 1, 2008

Study Completion

January 1, 2008

Last Updated

November 16, 2011

Record last verified: 2011-11

Locations