On the average, people get their teeth cleaned somewhere between every 90 to 180 days…and that is only the people that visit the dentist regularly.  Inflammation begins once plaque remains on a surface for 8 days. 

The most recent findings from the CDC reveals that nearly 50% of the adult US population has periodontal disease, a staggering but (from this side of the dental chair) not surprising number. 

Oral irrigation cleans under the gums and in those “hard-to-reach” areas.  Another point of interest is, even though brushing and flossing may disrupt plaque and biofilm, it does not remove it all.