Abstract: A computer implemented method for rendering digital three-dimensional dental models includes receiving a first digital 3D dental model including a first dental information of a patient; receiving a second digital 3D dental model including a second dental information of the patient; generating, in the digital 3D space, a superimposed model by superimposing one of the first digital 3D dental model or the second digital 3D dental model on another of the second digital 3D dental model or the first digital 3D dental model; and arranging a 2D controller and the superimposed model relative to each other such that a position of the 2D controller defines a boundary that demarcates the superimposed model between a first zone and a second zone.

Abstract: A communication device includes a simplified interface to the user limiting the user to use a keypad, light sources and an audio capability to operate the communication device. Having the voice playback capability and a limited number of keys on the keypad to co-operate in the operation of the communication device, the user is still able to perform the basic functions of a communication device.

Abstract: A communication device includes a simplified interface to the user limiting the user to use a keypad, light sources and audio capability to operate the communication device. Having the light sources and a limited number of keys on the keypad to co-operate in the operation of the communication device, the user is still able to perform the basic functions of a communication device.