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The studies that investigated the recovery time and healing for non-smokers, smokers and those who are exposed to secondhand smoke have shown that those who were exposed to secondhand smoke needed more time to recover than non-smokers but less time than smokers

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Probably fewer than youd hope

Laser whitening treatment is one of the quickest treatments to eradicate tough smoking stains

doi:10.1093/ntr/ntr019

Patients should also be advised to wear sunglasses to lessen sensitivity to ultraviolet (UV) rays and bright light