Dental biofilm is a more accurate description of plaque.  The soft white stuff that builds up on our teeth between dental cleanings.  Biofilm is a community of microorganisms that form a complex matrix.  Biofilms are everywhere in the environment from mountain streams to the mouth. 

Biofilms in the mouth cause dental diseases such as tooth decay, gingivitis, and periodontal disease.  Biofilm grows on all surfaces in the mouth:  tooth surfaces, the gum pockets, the tongue and cheek surfaces.  Brushing, flossing and using mouth rinses such as Oxyfresh will disrupt the biofilm so it cannot grow and organize into a disease causing substance.

It does not take long for biofilm to organize and lead to problems.  You can feel the sticky coating just a few hours after eating sweets such as candy or donuts.  If this is not removed by brushing and flossing, the organizing biofilm will harden into tarter in just a day or two.  Tarter protects the biofilm and now it cannot be removed by brushing and flossing alone.  The biofilm produces acids which weaken the enamel and will lead to tooth decay and infection under the gums.

IPR is an acronym for Interproximal Reduction. A technique usually used in orthodontics and restorative dentistry to thin teeth using sanding disks or strips. Up to 8-9mm of space per arch can be gained through this technique.