Tooth state and appearance is an element of human health and beauty. Coffee, cigarettes, irregular hygienic procedures are the reasons to dental plaque accumulation and tooth darkening. And they may result in caries, fetor oris, parodontosis.
The human body is created so that the work of certain organs directly depends on the health of other ones. For example, the dental health has an impact on the gastrointestinal tract. And the dental health is influenced by the gingival health. It is possible to fill a cavity, repair a chipped tooth, but the gum inflammation will continue to threaten the teeth integrity.