IADR Abstract Archives

Reduced Occlusal Supports Lead to Further Tooth Loss in Elders

Objectives: Redused occlusal supports increase occlusal burden of the remaining teeth and cause occlusal trauma and tooth fractures. Therefore, Redused occlusal supports should lead to further tooth loss. However, few studies have examined relationship between tooth loss and occlusal supports in detail. The purpose of this study was to investigate the influence of occlusal supports on tooth loss over 6 years in community-dwelling Japanese.
Methods:
This study included 847 participants in 70- and 80- year-old. At baseline and follow-up survey after 6 years, the number of teeth, Eichner index, occlusal force, the restorative and prosthodontic status, probing pocket depth were examined. Tooth blushing habits, frequency of dental checkups, family dentist, education level and systemic factors (diabetes mellitus, cognitive function and smoking habits) were evaluated. Logistic generalized estimating equation model was performed to investigate the relationship between tooth loss and occlusal supports. This study protocol was approved by the Institutional Review Board of Osaka University Graduate School of Dentistry (approval number H22-E9, H27-E4).
Results: The model revealed that Eichner index (reference = Eichner class A; Eichner B1: odds ratio [OR] = 4.33; Eichner B2: OR = 2.57; Eichner B3: OR = 2.94; Eichner B4: OR = 4.50; Eichner C1: OR = 5.82; Eichner C2: OR = 4.50), smoking habits (OR = 1.71), having family dentist (OR = 0.47), tooth position (reference = anterior teeth; molar: OR = 1.57), probing pocket depth (reference = <3mm; 4, 5mm: OR = 1.79; 6mm<: OR = 7.17), and restoration (reference = sound teeth; crown restoration: OR = 2.76; bridge abutment: OR = 3.00; root stump: OR = 6.70) were significantly associated with tooth loss (p <0.05).
Conclusions: These results suggested that reduced occlusal supports could be a risk factor.
IADR/AADR/CADR General Session
2020 IADR/AADR/CADR General Session (Washington, D.C., USA)
Washington, D.C., USA
2020
0805
Geriatric Oral Research
  • Sato, Hitomi  ( Osaka university , Suita , Japan )
  • Masui, Yukie  ( Tokyo Metropolitan Institute of Gerontology , Tokyo , Japan )
  • Kabayama, Mai  ( Osaka University Graduate School of Allied Health Sciences , Suita , Japan )
  • Ishizaki, Tatsuro  ( Tokyo Metropolitan Institute of Gerontology , Tokyo , Japan )
  • Arai, Yasumichi  ( Keio university School of Medicine , Tokyo , Japan )
  • Maeda, Yoshinobu  ( Osaka University , Osaka , Japan )
  • Ikebe, Kazunori  ( Osaka University , Suita, Osaka , Japan )
  • Mihara, Yusuke  ( Osaka university , Suita , Japan )
  • Takahashi, Toshihito  ( Osaka university , Suita , Japan )
  • Hatta, Kodai  ( Osaka university , Suita , Japan )
  • Fukutake, Motoyoshi  ( Osaka university , Suita , Japan )
  • Murotani, Yuki  ( Osaka university , Suita , Japan )
  • Hagino, Hiromasa  ( Osaka university , Suita , Japan )
  • Gondo, Yasuyuki  ( Osaka University Graduate School of Human science , Suita , Japan )
  • Kamide, Kei  ( Osaka University Graduate School of Allied Health Sciences , Suita , Japan )
    • NONE
    Poster Session
    Geriatric Oral Research I