It include at least one oral cavity nursing agent for conveying particle the invention discloses new method and system, to especially to deliver into space between neighbour. It includes the fluid ejector that particle is introduced into mouth cavity liquid form that this method, which is related to providing a kind of liquid, and the injector has speed from 0.5 meter per seconds are to 5m/s. Fluid can be by the oral rinsing device suitably deployed, but other devices also are used as well. It include one or more oral cavity nursing agents the present invention is especially suitable for conveying adhesive gel particle, preferably particle is controlled and/or release polymer.
