An essential part of battling periodontal gum disease is aggressive home care. The Waterpik Ultra Water Flosser is an easy and effective tool against plaque. With several different specialty tips you're able to get to hard to reach spots and under the gumline to where bacteria builds up. I only wish that I knew about this product sooner. Also, very affordable through Amazon. Replacement tips can be expensive so shop around and compare prices before buying.