Fluorisation with varnish or gel
Dental plaque(biofilm, bacteria) causes tooth decay. It starts be demineralising our enamel and slowly digging inside the tooth. If caries is into its initial stages and tooth has not lost integrity it can be arrested When we apply fluoride to teeth it causes them to form more harder and resistant substance called fluorapatite. This substance is much more resistant to caries, sugar and acid attacks.