But some experts say there's no supporting evidence this is necessary.
New research has determined for many people, once a year dental cleaning may be enough to prevent gum disease that leads to tooth loss.
That's if you have no risk factors.
Those risk factors for gum disease include smoking, diabetes and genetics.
In this research, two dental cleanings a year provided significant benefits to people with one or more of the risk factors, but one cleaning a year appeared sufficient for patients with no risk factors.
