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

doi:10.1292/jvms.13-0041

Bacteriology

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

Author information

Norihiko HIRAI
Department of Pharmacology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan
Mitsuyuki SHIRAI
Department of Pharmacology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan
Yukio KATO
Department of Veterinary Public Health II, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan
Masaru MURAKAMI
Department of Molecular Biology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan
Ryota NOMURA
Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Suita, Osaka 565–0871, Japan
Yoshie YAMASAKI
Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700–8556, Japan
Soraaki TAKAHASHI
Department of Pharmacology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan
Chihiro KONDO
Department of Pharmacology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan
Michiyo MATSUMOTO-NAKANO
Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700–8556, Japan
Kazuhiko NAKANO
Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Suita, Osaka 565–0871, Japan
Fumitoshi ASAI
Department of Pharmacology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252–5201, Japan

Keywords: age, canine, dental plaque, periodontitis, periodontitis-related bacteria

JOURNAL FREE ACCESS

2013 Volume 75 Issue 7 Pages 999-1001

DOI https://doi.org/10.1292/jvms.13-0041

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Abstract

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.

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