A A method of operating a toothbrush (10) having a brushhead (18), comprising: generating first information indicative of a first force exerted by the brushhead at a first angle relative to a tooth and second information indicative of a second force exerted by the brushhead at a second angle relative to the tooth, the second angle being different than the first angle； determining information regarding a current brushing angle of the brushhead based on the first information and the second information； and providing user perceptible feedback based on the determined information regarding the current brushing angle
