Does whiten­ing hurt?

Prima (UK) - - Best Of Health -

Bleach­ing can some­times cause dis­com­fort if you have sen­si­tive teeth, where the gum has re­ceded leav­ing the neck of the tooth ex­posed, or there’s a crack in the tooth. Car­bamide per­ox­ide is a slower act­ing bleach that can help in the case of sen­si­tiv­ity.

‘Den­tists will carry out a sen­si­tiv­ity as­sess­ment,’ said Ben. ‘It’s pos­si­ble to give a de­sen­si­tis­ing treat­ment in ad­vance us­ing potas­sium ni­trate, which blocks the pores in the den­tine and pre­vents the nerves in the teeth work­ing quite as ef­fec­tively. Potas­sium ni­trate is also the ac­tive in­gre­di­ent in tooth­paste for­mu­lated to help sen­si­tiv­ity.’

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