Grobler, Sias RenierOsman, Y.2018-07-202018-07-202016Grobler, S.R. & Osman, Y.I. (2016). Insights into the clinical effectiveness of whitening products - Part 1: Dentist-supervised-at-home bleaching product. South African Dental Journal, 71 (8):3651029-4864http://hdl.handle.net/10566/3890This section of the report is about the success of a dentist-supervised-at home tooth whitener, giving the results of a clinical study. Opalescence PF 10% was applied for 14 days and the colour change followed over a 14 month period. It could be concluded that: a) Opalescence is a good tooth whitener, b) the time of re-bleaching should actually depend on the colour choice expressed by the patient. Overall re-bleaching should only be done after six months and not on a monthly basis, otherwise enamel damage may become a problem. Remember that peroxide, which is responsible for the bleaching process, is a strong oxidizing agent. Furthermore, A2 and darker teeth showed more aesthetically observable colour changes.enWhitening productsBleaching productClinical effectivenessDentistryArticle