Panasonic Jet Washer Doltz Ultrasonic Water Flow Large Capacity/Stationary Model EW-DJ75-W Used about 3 times. Water flushes away dirt from periodontal pockets and between teeth that cannot be removed by a toothbrush. Large capacity, stationary type for ample use. Water flow washes away dirt that cannot be removed by a toothbrush. - Thoroughly washes away invisible dirt in periodontal pockets and plaque that has peeled off in periodontal pockets due to brushing. - Thoroughly blasts away and washes away food debris stuck between teeth and between teeth and orthodontic appliances. Promotes gum health in about 3 days*1 with "Ultrasonic Water Flow" - Generates and collapses fine bubbles in the water flow, generating shock waves to gently and powerfully clean the gums. - Washes away dirt from the surface of teeth in areas that are difficult to brush. *1 Only when using the Ultrasonic Water Flow nozzle. Large capacity, stationary type with a tank capacity of approximately 600 mL - Can be used for approximately 3 minutes*3 with one filling. The included nozzle also intensively cares for dirt on the tongue surface and stubborn dirt around orthodontic appliances.