This new design element allowed for a durable, yet flexible chair that was more comfortable for the patient yet didn’t the dentist’s access.
While doing research at the Eastman Dental Center in Rochester, New York, USA, Buonocore experimented with adding a weak acid to the bonding process to increase the bond strength between the surface enamel and resin. The traditional acrylic resins were quickly replaced as Buonocore’s discovery was better adept to handle the oral environment.
He called it “a direct structural and functional connection between ordered living bone and the surface of the load-covering implant.”
The research team produced a cavity-preventing toothpaste prototype by 1952 and proceeded to run clinical trials on 1,500 children and 400 adults in the area. After demonstrating that half of the participants showed a significant decrease in dental caries, Procter & Gamble released Crest toothpaste in 1956.