Robots. A New Form of Invisible Braces Made Possible by Robotic technology. Firstly, Custom lingual braces are one of the newest forms of braces available today. Similar to Invisalign and clear ceramic braces, they fall into the category of Invisible Braces. They are clearly the most invisible option on the market today. The growth of robotic technology has not overlooked the world of dentistry. Neither has the growth of CAD/CAM imaging technology or 3D printing. The creation of custom lingual braces uses all three.