Before revision: In the 1960s, Brännström provided evidence to support Gysi ’ s hydrodynamic theory through a series of experimental studies in vitro to show that various stimuli caused shifts in fluid movement across dentine, producing pain.
After revision: In the 1960s, Brännström provided evidence to support Gysi ' s hydrodynamic theory through a series of experimental studies in vitro to show that various stimuli caused shifts in fluid movement across dentine, producing pain.