Pharyngeal Bacteria and Professional Oral Health Care in Elderly People.

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  • Hirota Katsuhiko
    Department of Microbiology, Tokushima University, School of Dentistry
  • Yoneyama Takeyoshi
    Department of Oral and Maxillofacial Surgery, Hamamatsu University, School of Medicine
  • Ota Masako
    Azarean Sanada Nursing Home for the Aged
  • Hashimoto Kenji
    Department of Oral and Maxillofacial Surgery, Hamamatsu University, School of Medicine
  • Miyake Yoichiro
    Department of Microbiology, Tokushima University, School of Dentistry

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Other Title
  • プロフェッショナル・オーラル・ヘルス・ケアを受けた高齢者の咽頭細菌数の変動
  • プロフェッショナル オーラル ヘルス ケア オ ウケタ コウレイシャ ノ イン

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In 15 elderly residents of an old-age home, we measured the total number of bacteria and the numbers of streptococci and staphylococci in the pharynx over 5 months. Seven residents received professional oral health care from dentists and dental hygienists and eight practiced oral care by themseleves or together with a helper. During the 5 months, the total number of bacteria and the numbers of streptococci and staphylococci decreased (p<0.01) in those who received professional care. In contrast, the total number of bacteria and the numbers of streptococci and staphylococci neither did not change or increased in those who did not receive professional care. These findings show that professional oral health care by dentists and dental hygienists can decrease the total number of bacteria and the numbers of streptococci and staphylococci in the pharynx of elderly people, which might prevent aspiration pneumonia.

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