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Etiology of nursing caries: a microbiologic perspective
1Department of Clinical Dentistry, University of Rochester Medical Center, NY, USA.
Journal of Public Health Dentistry
|January 1, 1996
Summary
Nursing caries is an infectious disease caused by mutans streptococci. Early infection and frequent sugar exposure in infants lead to high bacterial levels and rampant tooth decay.
Area of Science:
- Pediatric Dentistry
- Infectious Diseases
- Oral Health
Background:
- Nursing caries is a significant public health concern in infants and young children.
- Scientific evidence increasingly supports the infectious and transmissible nature of nursing caries.
Purpose of the Study:
- To present a three-step model for the etiology of nursing caries.
- To highlight the role of mutans streptococci and cariogenic substrates in disease development.
- To provide a framework for designing preventive clinical trials.
Main Methods:
- Review and synthesis of existing scientific evidence on nursing caries.
- Conceptualization of a three-step etiological model.
Main Results:
- Infants colonized by mutans streptococci with frequent exposure to cariogenic substrates show increased bacterial populations.
- This increase in mutans streptococci is linked to a high risk of rampant dental caries.
Conclusions:
- Nursing caries etiology involves primary infection by mutans streptococci.
- Bacterial accumulation to pathogenic levels, driven by substrate exposure, is the second step.
- Rapid enamel demineralization and cavitation leading to rampant caries is the third step.
- The proposed three-step model can guide the development of targeted prevention strategies for nursing caries.