The duties of a dental laboratory technician are comprehensive and varied. Although dental technicians seldom work directly with patients, except under the direction of a licensed dentist, they are valuable members of the dental care team. They work directly with dentists by following detailed written instructions. Dental technician manufactures dental prosthetics including bridges, crowns and dentures. Because they work with their hands, dental technicians need excellent manual dexterity. He works in small laboratory – doing your crowns and dentures.