Leading dementia scientists believe that research into Alzheimer's and its treatments mean that people will be able to live longer without cognitive impairment.
The claim was made in a Delphi panel study commissioned by the Alzheimer's Research Trust (ART).
Future treatments are expected to delay the onset of dementia by one or two years, with some expecting treatments that will turn that figure into five years.
However, the panel also suggested that a cure for the disease was not expected to be forthcoming, with people probably having to live with the disease for the next 50 years at least.
Reacting to the preliminary study, ahead of the full publication later this month, chief executive of the ART Rebecca Wood said: "Dementia research is severely underfunded, receiving 12-times less investment than cancer research.
"Experts still believe dementia research will improve tens of thousands of lives over the coming years."
According to the Alzheimer's Society, there will be over one million people in the UK living with dementia by 2025, while around two-thirds of them will be women.
Read more about Barchester's dementia care homes.