Correlation of age with distribution of periodontitis-related bacteria in Japanese dogs

Norihiko Hirai, Mitsuyuki Shirai, Yukio Kato, Masaru Murakami, Ryota Nomura, Yoshie Yamasaki, Soraaki Takahashi, Chihiro Kondo, Michiyo Matsumoto-Nakano, Kazuhiko Nakano, Fumitoshi Asai

Research output: Contribution to journalComment/debatepeer-review

9 Citations (Scopus)


We analyzed the distribution of 11 periodontitis-related bacterial species in dental plaque collected from 176 Japanese dogs divided into young (less than 2 years of age), middle-aged (2-7 years of age) and elderly (more than 8 years of age) groups using a polymerase chain reaction method. Clinical examination revealed that no dogs in the young group were affected by periodontitis, whereas the rates for gingivitis and periodontitis were high in the middle-aged and elderly groups. In addition, the total numbers of bacterial species in the middle-aged and elderly groups were significantly greater than in the young group. Our findings suggest that age is an important factor associated with the distribution of periodontitis-related bacteria and periodontal conditions in dogs.

Original languageEnglish
Pages (from-to)999-1001
Number of pages3
JournalJournal of Veterinary Medical Science
Issue number7
Publication statusPublished - 2013


  • Age
  • Canine
  • Dental plaque
  • Periodontitis
  • Periodontitis-related bacteria

ASJC Scopus subject areas

  • veterinary(all)


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