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Quantitative determination of Streptococcus mutans by using competitive polymerase chain reaction
1Department of Operative Dentistry and Periodontology, University of Leipzig, Germany.
European Journal of Oral Sciences
|May 8, 1999
Summary
This study introduces a new quantitative PCR method to precisely measure Streptococcus mutans, a key bacteria in dental caries. This tool aids in assessing individual caries risk and monitoring treatment effectiveness.
Area of Science:
- Microbiology
- Molecular Biology
- Dental Research
Background:
- Mutans streptococci are significant pathogens linked to human dental caries.
- Accurate quantification of these bacteria is crucial for assessing caries risk.
- Current methods may lack the precision needed for effective risk assessment.
Purpose of the Study:
- To develop and validate a competitive polymerase chain reaction (PCR) method for the specific quantitative determination of Streptococcus mutans.
- To establish a reliable tool for assessing dental caries risk.
- To enable monitoring of preventive and therapeutic interventions.
Main Methods:
- A competitive PCR method utilizing homologous DNA for internal standardization was developed.
- Calibration curves were generated by coamplifying known amounts of S. mutans DNA with competitor DNA.
- The method's reliability was validated against a standard chairside culture method in a clinical study.
Main Results:
- The developed PCR method allows for rapid and exact determination of unknown S. mutans quantities.
- Results from the quantitative PCR method showed good correlation with the standard culture method.
- The method demonstrated high specificity and accuracy in quantifying S. mutans.
Conclusions:
- The novel quantitative PCR method provides an efficient and precise tool for S. mutans detection.
- This technique can significantly aid in evaluating a patient's risk for dental caries.
- It offers a valuable means to monitor the efficacy of dental caries prevention and treatment strategies.