Is it safe to have Zoom Whitening ,after a gum graft and how long should one wait before getting it done ? Also I am a bit concerned because I have read that after this procedure, Zoom Whitening, the teeth get very sensitive ?
I'd wait at least 2 months, but based on general healing principals, not any data.
Sensitivity is more likely with concentrated bleach as used in in-chair treatments. I prefer to encourage people to home bleach; this is my info sheet. And home bleaching works better in the long run.