Bacteriological evaluation of mutans streptococci using modified mitis-salivarius-bacitracin (MSB) agar medium in primary dentition period

DOI 被引用文献1件 参考文献22件
  • Saito Tamami
    Department of Pediatric Dentistry, Matsumoto Dental University
  • Ueda Ohmi
    Department of Oral Microbiology, Matsumoto Dental University
  • Teramoto Sachiyo
    Department of Pediatric Dentistry, Matsumoto Dental University Department of Oral Health Promotion, Institute for Oral Science, Matsumoto Dental University
  • Oguchi Hisao
    Department of Pediatric Dentistry, Matsumoto Dental University
  • Yanagisawa Shigeru
    Department of Oral Health Promotion, Institute for Oral Science, Matsumoto Dental University
  • Miyazawa Hiroo
    Department of Pediatric Dentistry, Matsumoto Dental University Department of Oral Health Promotion, Institute for Oral Science, Matsumoto Dental University

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説明

Mutans streptococci considered causative agents of dental caries are indigenous to the oral cavity. Modified mitis-salivarius-bacitracin (MSB) agar medium was supplied by BML. This media has characters to grow mutans streptococci very well and to inhibit of non-mutans streptococci. However, little is known about studies using this medium. In this study, we assessed the utility of modified MSB medium and discuss the relation between mutans streptococci and dental caries in primary dentition period. Modified MSB medium was found to be a suitable medium to isolate and quantify mutans streptococci since it could permit selective growth of mutans streptococci. Moreover, this medium inhibited to non-mutans streptococci (S.anginosus and S.intermedius), completely. The detection rate of Streptococcus mutans and Streptococcus sobrinus increased in proportion to the severity of dental caries in the nursery children. From these results, modified MSB agar medium is useful in the judgment to detect the mutans streptococci.

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