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Remineralisation of teeth
Remineralisation of teeth is a process in which minerals are returned to the molecular structure of the tooth itself. Teeth are (often) porous, allowing fluids and demineralisation beneath the surface of the tooth. When demineralised, these pores become larger.〔
==Tooth decay process==
Although a key feature of tooth decay is an increase within dental plaque of bacteria such as ''Streptococcus mutans'' and ''Lactobacillus'', it is not considered as an infectious disease.〔Fejerskov O, Nyvad B, Kidd EA: Pathology of dental caries; in Fejerskov O, Kidd EAM (eds): Dental caries: The disease and its clinical management. Oxford, Blackwell Munksgaard, 2008, vol 2, pp 20-48.〕 Tooth decay can be managed by modifying behaviour to controlling its causative factors, i.e. reducing the frequency of fermentable carbohydrates from food. This will reduce the chance of the dental biofilm developing to a cariogenic biofilm. The bacteria in a cariogenic biofilm produce organic acids when carbohydrates, especially sugar, are eaten.〔 When enough acid is produced so that the pH goes below 5.5,〔 the acid dissolves carbonated hydroxyapatite, the main component of tooth enamel, in a process known as ''demineralisation''. After the sugar is gone, the mineral loss can be recovered—or ''remineralised''—from ions dissolved in the saliva. Cavities result when the rate of demineralisation exceeds the rate of remineralisation and the latticework is destroyed,〔(【引用サイトリンク】title=Remineralization strategies )〕 typically in a process that requires many months or years.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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