Oral-B has launched their WOW campaign on packs of power toothbrushes. They are so confident in their products that if the customer is dissatisfied with the performance of their brushes in any way, they will refund the cost of the unit within 30 days even if they've simply changed their mind. The packs are emblazoned with the reassuring message that 'You'll never go back or your money back'.

Furthermore, whether the pack is purchased in dental surgeries or in retail outlets, the products have the same limited warranty. Providing they have a receipt for their purchase, customers can return the brush within a two-year period in the unlikely event of malfunction. P&G will either rectify the problem free of charge or provide a replacement product (at no extra cost).

Dissatisfaction based on performance is highly unlikely. The toothbrushes' efficacy at removing plaque, versus a manual toothbrush, is well documented. Studies have shown the Precision Clean brush head to remove up to five times more plaque along the gum line versus a regular manual toothbrush. Not only will it remove more plaque, but the flagship Triumph model also tackles the issue of compliance which measures brushing duration, thoroughness and pressure. For those who prefer the look and feel of a manual toothbrush there's the Oral-B Trizone, which combines a manual brush head design with an electric drive, which performs with a sweeping rather than oscillating-rotating action.