Oral Colonization of Streptococcus mutans in Six-month-old Predentate Infants

SAGE Publications - Tập 80 Số 12 - Trang 2060-2065 - 2001
A Wan1, W K Seow1, David M. Purdie2, P. S. Bird1, Laurence J. Walsh1, DI Tudehope3
1University of Queensland, School of Dentistry, 200 Turbot Street, Brisbane 4000, Australia
2New Life Centre, Queensland Institute of Medical Research, Population & Clinical Sciences Division, Herston Rd., Brisbane, Queensland 4006, Australia
3Mater Misericordiae Hospitals, Raymond Tee., South Brisbane, Queensland 4105, Australia

Tóm tắt

We hypothesize that S. mutans colonization occurs more frequently in pre-term children due to their relative immaturity. In this study of 172 predentate, six-month-old infants, we found that 50% of pre-term and 60% of full-term children harbored S. mutans. The colonization was confirmed by repeat sampling. Although there were minor differences, factors associated with S. mutans infection in pre-term and full-term infants were generally similar. In both groups, increased frequency of sugar was ranked the most important factor (p < 0.001), followed by breast-feeding (p < 0.001), and habits which allowed saliva transfer from mother to infant (p < 0.01). By contrast, non-colonization of S. mutans was associated with multiple courses of antibiotics (p < 0.001). Compared with pre-term children, there were higher percentages of full-term who had night feedings and consumed sugar during sleep times. Mothers with infected infants had S. mutans levels > 5 x 105 CFU/mL saliva (p < 0.001), poorer oral hygiene, more periodontal disease, and lower socio-economic status (p < 0.02) and snacked frequently (p < 0.001), compared with mothers with non-infected infants.

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SAGE Publications

Tập 80 Số 12

2060-2065

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