Abstract: A toothbrush has a body, and a brush member connected to the body, the brush member including three brushes which are arranged at an angle relative to one another so as to provide two side brushes and one intermediate brush extending between the side brushes and to form an elongated passage between the brushes, adapted to receive teeth so that the brushes can contact the teeth from an inner side, from an outer side, and from a biting surface.

Abstract: A computer game which has a computer with a computer program and a controller, and monitor for exhibiting an image of an agent moving toward the place where a secret document is hidden, wherein the computer program and the controller are designed so that a player by using said controller moves the image of an agent to overcome a plurality of obstacles to reach a foreign country, to travel in a foreign country, to find a building where the secret document is hidden, to overwhelm cards, to get in the building, to find the secret document, and to take it to his superiors.

Abstract: A voting system has a monitor to be activated by a voting person, means for introducing a name of the voting person, a computer system connected with the monitor and the means and provided with a computer program configured so that on a screen of the monitor a plurality of icons are exhibited each corresponding to a person for who voting persons have to vote, and so that upon touching a corresponding one of the icons by the voting person an information that the voting person voted for a corresponding person to be voted for in correspondence with the touched icon is supplied to the computer system, where upon the computer program calculates votes and determines winners.

Abstract: A dental treatment is performed in accordance with examination of a patient and determination of a required sequence of treatments by a computer, based on the examination results.