Long-term prospective cohort study of the incidence of xerostomia accompanied by aging process and its effect on periodontal disease

• Project/Area Number: 19791633
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Social dentistry
• Research Institution: Niigata University
• Principal Investigator: HIROTOMI Toshinobu Niigata University, 医歯学系, 助教 (00345513)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥2,430,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥330,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥1,000,000 (Direct Cost: ¥1,000,000)
• Keywords: 口腔乾燥 / 唾液 / 歯周病 / コホート研究 / 高齢者 / 牽糸性 / 疫学 / マルチレベル / 歯周病進行 / 刺激唾液

Research Abstract

This epidemiological study investigated the relationship between salivary spinability and xerostomia in an elderly population residing in Niigata City. Furthermore, the relationship between xerostomia and periodontal disease progression was also studied. The survey was conducted in 2007 and 2008. In this study, the 4-year longitudinal data were analyzed by merging data previously obtained in 2004. This study showed that the persistence of high salivary spinability could cause xerostomia. The finding that periodontal disease progression could accompany xerostomia was especially found in elderly subjects with fewer remaining teeth.

Research Products

• [Journal Article] Tooth-related risk factors for periodontal disease in community-dwelling elderly people (2010)
  • Author(s): Hirotomi T, Yoshihara A, Ogawa H, Miyazaki H
  • Journal Title: Journal of Clinical Periodontology (in press)
  • Peer Reviewed
• [Journal Article] Tooth-related risk factors for periodontal disease in community- dwelling elderly people (2010)
  • Author(s): T.Hirotomi
  • Journal Title: ournal of Clinical Periodontology (In press)
  • Peer Reviewed
• [Journal Article] Salivary spinability and periodontal disease progression in an elderly population (2008)
  • Author(s): Hirotomi T, Yoshihara A, Ogawa H, Ito K, Igarashi A, Miyazaki H
  • Journal Title: Archives of Oral Biology 53 Pages: 1071-6
  • Peer Reviewed
• [Presentation] Periodontal disease progression over 10 years in an elderly population (2009)
  • Author(s): Hirotomi T, Yoshihara A, Miyazaki H
  • Organizer: 第9回国際予防歯科学会
  • Place of Presentation: プーケット(タイ王国)
  • Year and Date: 2009-09-08
• [Presentation] Periodontal disease progression over 10 years in an elderly population (2009)
  • Author(s): T.Hirotomi
  • Organizer: 第9回国際予防歯科学会(WCPD)
  • Place of Presentation: プーケット(タイ王国)
  • Year and Date: 2009-09-08