Periodontal Disease and Oral Ageing: Influence of Genetic (HLA) and Environmental Factors

Abstract

The general process of ageing involves both physiological ageing (endogenous and\or innate) and ecological ageing (exogenous and\or acquired). Physiological ageing is the functional ageing that affects all individuals, leading to the decline of organic functions and systems of control. However, physiological ageing is also programmed genetic ageing, creating disparity among individuals with regard to old age and longevity. [...]