The study tested a new powered brush/irrigation device (HydraBrush Oral Health System) against a standard powered toothbrush with rinsing to see which delivered a cleaning solution more effectively to gum pockets.
Subjects were split into two groups for two weeks: one used the HydraBrush while the other used a Sonicare toothbrush followed by rinsing.
Results showed that the HydraBrush visually delivered more solution to gum pockets, but both methods had similar results in the spectrophotometer readings, indicating no significant difference in the actual concentration of the solution.