Comparison of periodontal health status and oral health behavior between Japanese and Chinese dental students

Mitsuhiro Ohshima; Ling Zhu; Yoko Yamaguchi; Motohiro Kikuchi; Ichiro Nakajima; Clive S. Langham; Wang Lin; Kichibee Otsuka; Kazuo Komiyama

doi:10.2334/josnusd.51.275

Original

Comparison of periodontal health status and oral health behavior between Japanese and Chinese dental students

Mitsuhiro Ohshima, Ling Zhu, Yoko Yamaguchi, Motohiro Kikuchi, Ichiro Nakajima, Clive S. Langham, Wang Lin, Kichibee Otsuka, Kazuo Komiyama

Author information

Mitsuhiro Ohshima
Department of Biochemistry, Nihon University School of Dentistry
Division of Functional Morphology, Dental Research Center, Nihon University School of Dentistry
Ling Zhu
The Research Institute of Stomatology, Department of Pediatric Dentistry, School of Stomatology, Nanjing Medical University
The Affiliated Stomatological Hospital, Nanjing Medical University
Yoko Yamaguchi
Department of Biochemistry, Nihon University School of Dentistry
Division of Functional Morphology, Dental Research Center, Nihon University School of Dentistry
Motohiro Kikuchi
Department of Pedodontics, Nihon University School of Dentistry
Division of Oral and Craniomaxillofacial Research, Dental Research Center, Nihon University School of Dentistry
Ichiro Nakajima
Department of Pedodontics, Nihon University School of Dentistry
Division of Oral and Craniomaxillofacial Research, Dental Research Center, Nihon University School of Dentistry
Clive S. Langham
Department of English, Nihon University School of Dentistry
Division of Dental Education, Dental Research Center, Nihon University School of Dentistry
Wang Lin
The Research Institute of Stomatology, Department of Orthodontics, School of Stomatology, Nanjing Medical University
The Affiliated Stomatological Hospital, Nanjing Medical University
Kichibee Otsuka
Department of Biochemistry, Nihon University School of Dentistry
Division of Functional Morphology, Dental Research Center, Nihon University School of Dentistry
Kazuo Komiyama
Department of Pathology, Nihon University School of Dentistry
Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry

Keywords: saliva occult blood test, periodontal disease, oral hygiene, self-administered structured questionnaires

JOURNAL FREE ACCESS

2009 Volume 51 Issue 2 Pages 275-281

DOI https://doi.org/10.2334/josnusd.51.275

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Abstract

A survey was carried out to compare periodontal health status and oral health behavior between Japanese and Chinese dental students. Subjects consisted of 118 students at Nihon University School of Dentistry and 92 students at the school of Stomatology, Nanjing Medical University. Saliva occult blood test was performed to classify whether subjects may have periodontal disease. Further questionnaires were given to evaluate different lifestyles and oral hygiene habit. The positive rate of the saliva occult blood test in Japanese dental students was 13.6%, and that of Chinese dental students was 43.5%. Bleeding from gingiva as a subjective symptom was as follows: Japansese 7.6%, Chinese 37.0%. Japanese dental students brushed for 13.5 min each day. The rate for Chinese students was 4.6 min. Use of interdental devices was as follows: Japanese 33.1%, Chinese 7.6%. Differences of periodontal disease rates between Japanese and Chinese dental students are thought to be differences in oral hygiene, indicating the need for improvements in hygiene measures in Nanjing City. The establishment and strengthening of oral hygiene education, including the importance of tooth brushing for prevention of periodontal disease, has been proposed. (J Oral Sci 51, 275-281, 2009)

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