heat generating nanobots

Left: Nanobots entering a dentinal tubule. Centre top and bottom: Schematic representation and electron microscope image of nanobot moving through dentinal tubule to reach bacterial colony. Right: How locally induced heat from nanobot can kill bacteria. Live bacteria are green and dead bacteria are red. Bottom right shows band where targeted treatment has been done in human teeth CREDIT Theranautilus
Deep cleaning teeth with nanobots?