Large-scale survey on contributory factors of decline in masticatory ability and outcomes of its recovery in the elderly

2010 Fiscal Year Final Research Report

• Project/Area Number: 19390496
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: 補綴理工系歯学
• Research Institution: Osaka University
• Principal Investigator: IKEBE Kazunori Osaka University, 歯学部附属病院, 講師 (70273696)
• Co-Investigator(Kenkyū-buntansha): GONDA Tomoya 大阪大学, 歯学部附属病院, 講師 (30324792)
• Research Collaborator: MATSUDA Kenichi 大阪大学, 歯学研究科, 助教 (80448109) ; HAZEYAMA Tomohiro 大阪大学, 歯学部附属病院, 医員 (70448108)
• Project Period (FY): 2007 – 2010
• Keywords: 歯学 / 縦断的研究 / 咬合支持 / 咀嚼 / 高齢者 / 栄養 / QOL

Research Abstract

Loss of posterior occlusal support was associated with a reduced bite force and a decline in masticatory performance. Among males, occlusal support was significantly associated with intake of green vegetable, fruit, and calcium, vitamin C as nutrient components. After controlling for age, gender and baseline oral-health-related quality of life, participants who had lost teeth or experienced a decline in occlusal force after 7 years had poorer OHRQoL. Unfavourable changes in clinical oral status over time are reflected in poorer self-rated oral health.

Research Products

• [Journal Article] Subjective values of different age groupsregarding treatment for missing molars inJapan (2011)
  • Author(s): Ikebe K, Hazeyama T, Ogawa T, Kagawa R,Matsuda K, Wada M, Gonda T, Maeda Y.
  • Journal Title: Gerodontology in press
  • Peer Reviewed
• [Journal Article] Incidence and association of root fractures after prosthetic treatment (2011)
  • Author(s): Matsuda K, Ikebe K, Enoki K, Tada S,Fujiwara K, Maeda Y.
  • Journal Title: Journal of Prosthodontic Research in press
• [Journal Article] Shortening the Xerostomia Inventory (2011)
  • Author(s): Thomson MW, van der Putten G-Jan, deBaat C, Ikebe K, Matsuda K, Enoki K,Hopcraft M, Ling G.
  • Journal Title: Oral Surg, Oral Med,Oral Pathol, Oral Rad and Endodont in press
  • Peer Reviewed
• [Journal Article] Association of masticatory performance with age, gender,teeth number, occlusal force and salivary flow in older adults. Is aging a risk factor for masticatory dysfunction (2011)
  • Author(s): Ikebe K, Matsuda K, Kagawa R, Enoki K,Yoshida M, Maeda Y, Nokubi T.
  • Journal Title: Arch Oral Biol in Press
  • Peer Reviewed
• [Journal Article] Validation of the Eichner Index in relation to bite force and masticatory performance (2010)
  • Author(s): Ikebe K, Matsuda K, Murai S, Maeda Y,Nokubi T
  • Journal Title: Intt J Prosthodont 23 Pages: 521-524
  • Peer Reviewed
• [Journal Article] Subjective values of different treatments for missing molars inolder Japanese (2010)
  • Author(s): Ikebe K, Hazeyama T, Kagawa R, Matsuda K, Maeda Y
  • Journal Title: J Oral Rehabil 37 Pages: 892-899
  • Peer Reviewed
• [Journal Article] Increase of salivary flow rate along with improved occlusal force after the replacement of complete dentures (2009)
  • Author(s): Matsuda K, Ikebe K, Ogawa T, Kagawa R,Maeda Y
  • Journal Title: Oral Surg, Oral Med, Oral Pathol, Oral Rad and Endodont 108 Pages: 211-215
  • Peer Reviewed
• [Journal Article] Association of symptomless TMJ sound with occlusal force and masticatory performance in older adults. (2008)
  • Author(s): Ikebe K, Hazeyama T, Iwase K, Sajima H,Gonda T, Nokubi T
  • Journal Title: J Oral Rehabil 35 Pages: 317-323
  • Peer Reviewed
• [Presentation] Factors related to survival of abutments of removable partial dentures (2011)
  • Author(s): Tada S, Ikebe K, Matsuda K, Fujiwara K, Yoshida M, Maeda Y.
  • Organizer: 89th IADR General Session
  • Year and Date: 2011-03-18
• [Presentation] 検査用グミゼリーを用いた咀嚼能率測定法における手動測定法と自動測定法との比較 (2010)
  • Author(s): 岡田匡史, 池邉一典, 枦山智博, 吉牟田陽子, 野首文公子, 野首孝祠, 前田芳信
  • Organizer: 日本咀嚼学会第21回学術大会
  • Year and Date: 2010-10-03
• [Presentation] Longitudinal shifts in OHIP-14 among Japanese elderly in five years (2010)
  • Author(s): 榎木香織, 池邉一典, 松田謙一, 枦山智博, 前田芳信
  • Organizer: 88th IADR General Session
  • Year and Date: 2010-07-15
• [Presentation] Longitudinal shifts in OHIP-14 among Japanese elderly in five years (2010)
  • Author(s): 池邉一典, 榎木香織, 松田謙一, 前田芳信
  • Organizer: 39th Annual Meeting of the American Association for Dental Research
  • Year and Date: 2010-03-04
• [Presentation] 歯の欠損拡大様式とそれに関連する因子2年間の追跡調査 (2009)
  • Author(s): 榎木香織, 池邉一典, 枦山智博, 松田謙一, 村井俊介, 岡田匡史, 前田芳信
  • Organizer: 平成21年度日本補綴歯科学会関西支部,中国・四国支部合同学術大会
  • Year and Date: 2009-11-15
• [Presentation] 高齢者の咬合支持(Eichner 分類)と咬合力ならびに咀嚼能率との関係 (2009)
  • Author(s): 村井俊介, 池邉一典, 榎木香織, 野首文公子, 枦山智博, 松田謙一, 前田芳信, 野首孝祠
  • Organizer: 日本咀嚼学会第20回記念学術大会
  • Year and Date: 2009-10-03
• [Presentation] Comparison of GOHAI and OHIP-14 in Elderly Japanese (2009)
  • Author(s): Hazeyama T, Ikebe K, Maeda Y.
  • Organizer: 2nd Meeting of IADR PAPF and 1st Meetingof IADR APR
  • Year and Date: 2009-09-03
• [Presentation] 高齢者における唾液中のS. mutans, S. sobrinus ならびにLactobacillus 数とDMF歯数との関係 (2009)
  • Author(s): 榎木香織, 池邉一典, 松田謙一, 枦山智博, 香川良介, 小川泰治, 石田健, 水野遥子, 村井俊介, 前田芳信
  • Organizer: 第20回日本老年歯科医学会 学術大会
  • Year and Date: 2009-06-19
• [Presentation] 欠損パターンの拡大様式の検討 少数歯欠損について (2009)
  • Author(s): 枦山智博, 池邉一典, 榎木香織, 水野遥子, 村井俊介, 前田芳信
  • Organizer: 第118回日本補綴歯科学会 学術大会
  • Year and Date: 2009-06-05
• [Presentation] 臼歯部欠損に対して高齢者が希望する治療 日本人は短縮歯列(Shortened Dental Arch)を望んでいるのか? (2009)
  • Author(s): 池邉一典, 枦山智博, 松田謙一, 香川良介, 榎木香織, 前田芳信
  • Organizer: 第118回日本補綴歯科学会 学術大会
  • Year and Date: 2009-06-05
• [Presentation] 歳を取るとなぜ噛めなくなるのか～咀嚼能力と咬合、唾液、口腔感覚との関係～ (2008)
  • Author(s): 池邉一典, 雨宮三起子, 森居研太郎, 松田謙一, 前田芳信, 野首孝祠
  • Organizer: 日本歯科医学会総会
  • Year and Date: 2008-11-13
• [Presentation] Incidence of partial denture usage and Kennedy classification (2008)
  • Author(s): Enoki K, Ikebe K, Hazeyama T, Ishida K, Matsuda K, Maeda Y.
  • Organizer: 86th I.A.D.R. General Session
  • Year and Date: 2008-07-03