What do you do when you have periodontal disease?

Answer 1

Brushing and flossing alone cannot completely remove all of the plaque and biofilm from a person with gum disease. If it could, most gingivitis would be non-existent. Plaque biofilm is full of anaerobic bacteria (living without oxygen) that are deposited on your teeth and in the concave root surfaces under your gums. Your brush and floss can't physically reach all of these areas to completely remove these bacteria. However, with an irrigator, you can easily deliver a stream of water to flush the bacteria and loose particles out of these hard-to-reach areas.
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Managing gum disease is all about daily plaque control - essentially sound oral hygiene. That means, in most cases, stopping the plaque in your mouth is really in your own hands. Brush every day. Floss every day. Period. Your dentist or oral hygienist may recommend fluoride toothpaste or tartar reduction rinses. Colgate Total is approved by the FDA for helping to prevent advanced gum disease by reducing plaque and tartar.

Dental professionals recommend oral irrigation as a great way to really clean teeth and gums. Oral irrigators get what your toothbrush and floss, don't, so plaque and tartar and the resulting advanced gum disease never come back.
Oral irrigators flood the mouth with a jet of water under pressure to flush offending food particles and bacteria from the mouth. And most importantly, from under the gum line where the infection is. It is just like a wound on your arm - you must keep it clean for it to heal.

There are many types of irrigators. Fairly new on the market are irrigators that attach to your showerhead or your sink faucet.
A search on Amazon will produce 99% of available products.
All types have pros and cons. The most common electric tank irrigator is the WaterPik. The most common shower irrigator is OralBreeze.