Quantification and identification of bacteria in maxillary obturator-prostheses

Yasuhisa Takeuchi, Kazuko Nakajo, Takuichi Sato, Yoko Sakuma, Shigeto Koyama, Keiichi Sasaki, Nobuhiro Takahashi

Research output: Chapter in Book/Report/Conference proceedingChapter


The aims of this study were to quantify and identify bacteria in the in-use acrylic resin maxillary obturator-prostheses. Aspiration pneumonia-associated or airborne bacteria such as Klebsiella and Pseudomonas species as well as oral bacteria were detected at 5.0 × 10-2.5 × 106 colony forming units (CFU)/mL. This study revealed that several species of viable bacteria are present within the obturators. It is suggested that the inner space of obturator can act as bacterial reservoirs.

Original languageEnglish
Title of host publicationInterface Oral Health Science 2011
PublisherSpringer Japan
Number of pages3
ISBN (Electronic)9784431540700
ISBN (Print)9784431540694
Publication statusPublished - 2012 Jan 1


  • Acrylic resin
  • Bacterial detection
  • Bacterial identification
  • Maxillary obturator-prostheses

ASJC Scopus subject areas

  • Dentistry(all)


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