10 Dental apparatus and instruments, namely, electrosurgical devices, handpieces, dental drills, burrs, drill bits, ultrasonic dental cleaners, scalers, inserts and irrigators for use therewith, dental instrument cleaning and storage trays, hand-held dental instruments for dispensing air and water and parts and fittings therefor, dental handpieces for cleaning tooth surfaces and prostheses, dental handpieces for creating dental prostheses