Effectiveness of a combined in-office and take-home whitening system for teeth shades A3.5 to A4.

As teeth whitening increases in popularity, dental professionals are challenged to select the proper materials and technique to create esthetically whitened smiles for their patients. This study examined nine subjects with baseline shades of A3.5 to A4 on four to six of their maxillary anterior teeth with the VITA Classical (VC) shade guide. All subjects received one session of in-office whitening (Philips Zoom WhiteSpeed), 3 weeks of at-home tray whitening (Zoom NiteWhite), and the option of a second WhiteSpeed treatment. Subjects achieved, on average, documented change of 11.1 shades. Only two subjects reported any sensitivity, thereby demonstrating the effectiveness of a combined whitening system, including both chairside and take-home whitening, and a sensitivity prevention protocol.