Oral hygiene systems

An oral hygiene system, comprising:

• a mouthpiece having an outer portion and an inner portion configured to receive at least a portion of a user's dental and gum structures;
• a plurality of filaments disposed within the inner portion of the mouthpiece;
• a water pressure irrigator configured to be selectively coupled, in a first configuration, to the outer portion of the mouthpiece and to deliver fluid to the inner portion of the mouthpiece when in the first configuration, and to be selectively decoupled from the mouthpiece in a second configuration, in which a tip area of the water pressure irrigator is sized and shaped to deliver fluid to the user's dental and gum structures, independent of the mouthpiece;
• a handle rigidly connected to the water pressure irrigator;
• and
• a fluid reservoir in fluid communication with the water pressure irrigator and configured to deliver the fluid thereto,
• wherein the system is configured to generate ultrasound within the inner portion of the mouthpiece.