Take-home whitening means professionally supervised teeth whitening using customised whitening tray. This can be done in the comfort of your own home.
The main advantage of take-home whitening versus in-office teeth whitening is that tooth sensitivity is reduced with the take-home whitening kit. This is because a lower concentration whitening gel is used for take-home whitening (using Opalescence™ PF 10%). It is also more convenient as teeth whitening can be done at home.
The main disadvantages are that a longer treatment time (a few weeks) is required and the trays would need to be worn overnight.