Oral hygiene is a set of practices that eliminate plaque that forms naturally and permanently on the surface of teeth.
The removal of plaque prevents periodontal disease. Indeed, the bacteria are responsible for irritation of the gums (gingivitis), which become red, swollen, and bleed easily with brushing. This situation may degenerate into periodontitis resulting in the appearance of mobility and loss of teeth.
Many bacteria present in dental plaque transform sugars (sweets but also chips, cookies,) into lactic acid. The action of this acid on dental enamel will result in demineralization of the tooth and the appearance of a cavity. It’s caries. However, the buffering capacity of saliva reduces the acidity of the mouth (pH) to neutrality.
Tartar, which is mineralized dental plaque, can no longer be removed by simple brushing, and must be removed from the dentist by descaling.