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  • Title: [Streptococci mutans: a semi-quantitative method to assess the risk to oral infection in preschool Chilean children].
    Author: Linossier A, Vargas A, Zillmann G, Arriagada M, Rojas R, Villegas R.
    Journal: Rev Med Chil; 2003 Apr; 131(4):412-8. PubMed ID: 12870236.
    Abstract:
    BACKGROUND: Salivary infection due to Streptococci mutans is considered the main microbiological risk factor for the initiation of dental caries. AIM: To evaluate a semi-quantitative method to assess Streptococci mutans salivary infection and compare it with the existing quantitative method. PATIENT AND METHODS: Saliva samples were obtained from 650 preschool children aged 2 to 6 years old using a TYCSB liquid medium for counting Streptococci mutans. Results were compared with quantitative cultures. RESULTS: There was a 99.3% linear correlation coefficient between both methods. The correlation coefficients with dental caries prevalence were 97% for the semi quantitative method and 90% for the quantitative method. CONCLUSIONS: The semi-quantitative method to assess oral infection with Streptococci mutans, is accurate enough to be used in population studies and oral infection prevention programs in developing countries.
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