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A Longitudinal Study of Streptococcus mutans Colonization in Infants after Tooth Eruption
A.K.L. Wan1,
W.K. Seow1,*,
D.M. Purdie2,
P.S. Bird3,
L.J. Walsh1 and
D.I. Tudehope4
1 University of Queensland, School of Dentistry, 200 Turbot Street, Brisbane, Queensland 4000, Australia;
2 Queensland Institute of Medical Research, Population & Clinical Sciences Division, Herston Rd., Brisbane, Queensland 4006, Australia;
3 Oral Biology Laboratory, University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia; and
4 Mater Misericordiae Hospitals, Raymond Tce., South Brisbane, Queensland 4105, Australia;

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Figure 1. Cumulative prevalence of Streptococcus mutans colonization for 0 to 24 mos of age in all subjects. This Fig. shows the cumulative prevalence of Streptococcus mutans colonization from birth to 24 mos of age at each three-month interval for all infants (pre-term and full-term) within the study. It represents a combined prevalence of pre-dentate and dentate colonization over the entire duration of the study. "n value" is the total number of infants in the study, which is 312, at each three-month interval.
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Figure 2. Prevalence of Streptococcus mutans colonization after tooth eruption in pre-term and full-term infants at ages 6 to 24 mos. This Fig. shows the cumulative prevalence of Streptococcus mutans colonization after tooth eruption in infants who were not previously colonized during the pre-dentate period. The black columns represent the cumulative prevalence of Streptococcus mutans colonization after tooth eruption in full-term infants, while the white columns represent the pre-term infants. "n value" for pre-term infants is 33 and for full-term infants is 76, at each three-month interval. The Fig. illustrates prevalence rates, and therefore, estimate of variability is not included.
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Journal of Dental Research, Vol. 82, No. 7,
504-508 (2003)
DOI: 10.1177/154405910308200703

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