Tooth Decay Process
Tooth decay is the teeth' continuous deterioration that leads to cavities and tooth loss. It is caused by built-up dental plaque. Plaque bacteria convert glucose into acid, resulting in teeth rot if unchecked. Tooth decay occurs in stages: Stage 1: Initial demineralisation of enamel The outer layer of the teeth is the enamel. When the tooth gets exposed to bacterial acids and plaque, the enamel coating becomes weak. A white spot on a tooth is the first visible sign that tooth decay has begun. Stage 2: Enamel decay The enamel deteriorates further and is symbolised by a white spot on the teeth turning dark brown. The weakened enamel cause formation of holes in the teeth. The holes are known as activities. They can be repaired by filling. Stage 3: Decay of dentin Under the enamel is a tissue called dentin. Dentin is softer than enamel. It is more susceptible to deterioration when exposed to acids. Once the acids reach it, the decay accelerates. Dentin is comprised ...