Ever since Finland had been forced to supplement an acute sugar shortage with Xylitol during World War Two, numerous health benefits were realised. This resulted in frequent studies aiming to understand the important perks this sweetener offered. These researches were then replicated in countries the world over.
In 1972-1975 a group of Finnish professors headed by Professor Kauko K. Makinen, and Professor Arje Scheinin discovered Xylitol's dental properties.
Supplementing the Turku Studies, the Ylivieska research was carried out in 1982-1989 and demonstrated that Xylitol consumption prevents dental carries.
In the 1990s professors at the Univeristy of Toronto concluded that chewing Xyltiol gum five times a day could prevent tooth decay.
In 1995, a team of professors at the Harvard School of Dental Medicine found that Xylitol significantly decreases the incidence of dental caries.
A major cause of ear infections is a species of bacteria known as Streptococcus pneumoniae, and Xylitol was thought to inhibit their growth. In the 1990s researchers from Finland tested this hypothesis, concluding that the sweetener was indeed useful in preventing ear infection. This interesting study was published in the British Medical Journal, in 1996.
In the beginning of the 20th century, the Department of Periodontology at the Nippon Dental University carried out research on Xylitol's trabeculae effects. They concluded that oral administration of Xylitol affects bone metabolism by increasing bone density.