Couldwhitening strips affect tooth cavities?

Yes and No.: They will not make existing cavities worse; however, they will potentially cause some sensitivity if the whitening agent comes in contact with the cavity. It's best to have any cavities fixed prior to whitening.

Sensitivity: If you have cavitites, tooth whitening should be your last priority in relation to your oral health. Get your oral health in order first, then think about whitening. Tooth whitening products can cause tooth sensitivity, so a cavitated tooth will experience this sensitivity even more because there is access for the whitening agent to seep into the tooth.

Yes: If you have untreated cavities whitening strips can make them worse. See your Dentist to assure that your oral health is optimum, and for guidance as to tooth whitening alternatives. OTCs are not as effective as in-office treatment.