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Influence of a low xylitol-dose on mutans streptococci colonisation and caries development in preschool children
P Oscarson1, P Lif Holgerson, I Sjöström
1Lycksele Public Dental Clinic, Umeå, Sweden.
Insights
Low-dose xylitol tablets did not significantly reduce mutans streptococci (MS) colonization or caries in preschoolers. Maternal MS levels influenced child colonization in the control group, but not in the xylitol group.
Area of Science:
- Pediatric Dentistry
- Microbiology
- Preventive Dentistry
Background:
- Mutans streptococci (MS) are primary causative agents of dental caries.
- Early childhood caries (ECC) poses a significant public health challenge.
- Xylitol is a sugar substitute with known anticariogenic properties.
Purpose of the Study:
- To assess the efficacy of daily low-dose xylitol tablets in preventing mutans streptococci colonization and caries development in preschool children.
- To investigate the relationship between maternal and child MS colonization.
- To evaluate the impact of xylitol intervention on caries prevalence.
Main Methods:
- A randomized, single-blind, prospective study involving 132 healthy 2-year-olds.
- Children were assigned to either a xylitol tablet group or a control group for 1.5 years.
- Mutans streptococci levels and caries prevalence were monitored throughout the 2-year trial.
Main Results:
- No statistically significant differences in MS colonization were observed between the xylitol and control groups.
- Maternal MS levels correlated with child colonization in the control group, but not in the xylitol group.
- While caries prevalence was lower in the xylitol group at age 4, the difference was not statistically significant.
Conclusions:
- Low-dose xylitol tablet supplementation is not supported as an effective caries prevention strategy for preschool children.
- Further research may be needed to determine optimal xylitol dosage and delivery methods for pediatric caries prevention.
Aim:
To evaluate the effect of xylitol-containing tablets on mutans streptococci colonisation and caries development in preschool children.
Study Design:
Randomised single-blind prospective design.
Methods:
The material consisted of 132 healthy 2-year-old children, 71 boys and 61 girls and they were assigned to a xylitol tablet (test) group or a non-intervention control group. The mean age was 2 years + 1 month in both groups. The drop-out rate was 10.6% during the 2-year trial. The test group was given 1-2 xylitol tablets (0.5-1g) per day during 1.5 years. Mutans streptococci (MS) enumeration was performed at baseline and semi-annually in the children and at baseline or shortly after in the mothers with a chair-side technique. Caries prevalence was scored at baseline and the age of 4 years.
Results:
No statistically significant differences in MS colonisation were disclosed between the test and control groups at baseline or any of the designated follow-ups. A statistically significant positive relationship was found between the maternal salivary MS levels and the colonisation of the children in the control group at 2.5 years, 3 years and 3.5 years (r=0.39, r=0.35; r=0.30; p<0.01, p<0.01 and p<0.05) but not in the xylitol tablet group (p<0.05). The mean caries prevalence was lower in the test group compared with the control group at 4 years of age (dmfs 0.38 +/-1.05 vs. 0.80 +/-2.60) but the difference was not statistically significant.
Conclusion:
The findings do not support a low-dose xylitol tablet program for caries prevention in preschool children.
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