A dental laser system comprising: at least one electromagnetic energy source ; at least one controller coupled to the at least one electromagnetic energy source , the controller coupled to a graphical user interface configured to enable a user to provide input to the controller to control at least one operating parameter of the at least one electromagnetic energy source , wherein under control of the controller , the graphical user interface is configured and arranged to render graphical content; the at least one controller configured and arranged to enable a user to control a plurality of parameters of the dental laser system with a single action or input to the graphical user interface , wherein the single action or input from the user involves the interaction with a graphical portion of the controller , wherein the interaction controls more than one operational parameter of the dental laser system without a requirement for the user to provide an additional or substantially simultaneous interaction with any other adjacent controller or graphical portion of the graphical user interface ; and at least one graphic indicative of at least one of a mode, an operational status, and an operational parameter of the dental laser system , wherein the at least one graphic is displayed, updated, or animated by the at least one controller , characterised in that each of the plurality of parameters is adjustable by a user selectable slider on the graphical user interface , and wherein adjusting one of the sliders at a specific rate causes any one or more of the other sliders to move at the same or at a different rate. at least one electromagnetic energy source ; at least one controller coupled to the at least one electromagnetic energy source , the controller coupled to a graphical user interface configured to enable a user to provide input to the controller to control at least one operating parameter of the at least one electromagnetic energy source , wherein under control of the controller , the graphical user interface is configured and arranged to render graphical content; the at least one controller configured and arranged to enable a user to control a plurality of parameters of the dental laser system with a single action or input to the graphical user interface , wherein the single action or input from the user involves the interaction with a graphical portion of the controller , wherein the interaction controls more than one operational parameter of the dental laser system without a requirement for the user to provide an additional or substantially simultaneous interaction with any other adjacent controller or graphical portion of the graphical user interface ; and at least one graphic indicative of at least one of a mode, an operational status, and an operational parameter of the dental laser system , wherein the at least one graphic is displayed, updated, or animated by the at least one controller , characterised in that each of the plurality of parameters is adjustable by a user selectable slider on the graphical user interface , and wherein adjusting one of the sliders at a specific rate causes any one or more of the other sliders to move at the same or at a different rate. <EOS>