The present invention is directed to systems and methods for dental applications that allow for cost effective, expedient surgical, microsurgical, cosmetic and diagnostics procedures. The system includes a console with no optical connector in it for high optical power and one or more handpiece assemblies detachably connected with the console via electrical connectors. The converter of electrical power to optical power is made as a semiconductor converter, such as a light emitting diode, a diode laser, a diode pumped solid state laser, a diode pumped fiber laser, and the like. The elements of the semiconductor converter in the embodiments of the invention are capable of being positioned in different parts of the handpiece assembly. In one embodiment, the console is adaptive and is capable of executing an executable code stored in a handpiece during its manufacture enabling corresponding performance of the system.