Rank 1: Occlusal to the cemento-enamel junction ... [27] Retained deciduous tooth: deciduous tooth maintained in the arch with the presence of an impacted permanent successor.

This allows saliva to neutralise the acid in the mouth, and tooth enamel to harden – otherwise ... is not usually available on the NHS. The kits you can buy in shops have very low levels of ...

has revealed that at-home teeth whitening kits bought online can be extremely dangerous to the enamel on your teeth if they contain high levels of peroxide. Dr Mehra explains: “Although dentists ...