Journal of Korean society of Dental Hygiene (한국치위생학회지)

Korean Society of Dental Hygiene (한국치위생학회)
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Association of periodontitis-related bacteria complex with socio-demographic and oral health condition among the elderly in a rural area

일부 농촌지역 노인의 일반 특성 및 구강상태와 치주염유발세균의 관련성

  • Lee, Seung-Geun (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Jung, Eun-Jae (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Kim, Ji-Hye (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Song, Keun-Bae (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Choi, Yun-Hee (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University)
  • 이승근 (경북대학교 치과대학 예방치과학교실) ;
  • 정은재 (경북대학교 치과대학 예방치과학교실) ;
  • 김지혜 (경북대학교 치과대학 예방치과학교실) ;
  • 송근배 (경북대학교 치과대학 예방치과학교실) ;
  • 최연희 (경북대학교 치과대학 예방치과학교실)
  • Received : 2020.08.24
  • Accepted : 2020.09.30
  • Published : 2020.10.30
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Abstract

Objectives: The objectives of this study were to investigate the distribution and level of periodontopathic bacteria with the general characteristics and oral health condition of the elderly. Methods: A total of 335 elderly individuals aged 65 years or older who lived in Ganghwa-gun, Incheon, were included in the study. Oral examination, investigation through a questionnaire, and collection of saliva were carried out. The collected saliva was analyzed for the distribution and levels of bacteria (red and orange complex bacteria) by real-time polymerase chain reaction. Statistical analyses were performed using chi-square test, t-test, one-way analysis of variance, and Pearson's correlation coefficient with SAS statistical software version 9.4. Results: Among the general characteristics, there were significant differences in the distribution of Porphyromonas gingivalis, Treponema denticola, and Parvimonas micra depending on sex, age, and dental visits (p<0.05). The number of remaining teeth and denture use were related to the distribution of periodontopathic bacteria, except T. denticola (p<0.05). Additionally, periodontitis was related to the distribution of P. gingivalis (p<0.05). As the number of remaining teeth increased, the copy number of red and orange complex bacteria also increased (p<0.05). Those individuals who did not use dentures and had periodontal disease had more periodontopathic bacteria (p<0.05). Conclusions: The distribution and copy number of periodontopathic bacteria in the elderly were more related to oral health condition than to general characteristics. In particular, the distribution and copy number of periodontopathic bacteria were higher in subjects with multiple remaining teeth, no dentures, and periodontal disease.

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References

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