People often ask:How long does the result of tooth whitening last?
Usually teeth stay noticeably whitened for at least several years but over time the degree of whitening may gradually decrease. Patients often feel the need to 'touch up' their whitening from time to time. This is relatively easy to do if they have had bleaching trays made and usually involves using their trays and touch up gel for a night or two.
Occasionally I have observed some patients who don't have as long lasting results as others. This may be related to their dietary habits or possibly some other factor that is not presently well understood by the dental community.
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