General health, healthcare costs and dental care use of elderly with a natural dentition, implant-retained overdenture or conventional denture: An 8-year cohort of Dutch elderly (aged 75 and over)

Cross-sectional studies have shown that elderly with a natural dentition have better general health than edentulous elderly, but this has not been confirmed in studies with longitudinal design. This prospective longitudinal study with a follow-up of 8 years aimed to assess differences in general health, healthcare costs and dental care use between elderly with a natural dentition and edentulous elderly wearing implant-retained or conventional dentures.