The tools and techniques involved in dentistry have come quite a long way from the ancient origins of this field. Modern dental drills, for instance, are designed to allow dentists to work more quickly with greater precision and less pain for their patients. To understand how these drills work, you must first know what parts are included and how power is supplied to the tool.


The essential parts of a dental drill are the drill bit, couplings, handpiece and motor. These parts can be made from various materials, but the drill bits are usually made from tungsten carbide, one of the hardest known substances. The handpiece can be brass or plastics and will have various head gears and couplings for different tools such as drills and polishing brushes. You can find dental handpiece replacement head gears and other parts from online suppliers while learning about the latest innovations and newest tools.

Power Supply

Power is supplied to the drill assembly by an air turbine which converts the flow of pressurized air into mechanical energy and rotates the drill bit several hundred thousand times a minute. Since drilling teeth, polishing them and drilling soft tissue all require different speeds, you can find air turbines, electric motors and air-driven motors together in the same equipment. Dentists can control the type and flow of power with foot pedals, reducing the number of tasks dedicated to already busy hands.

Dental drills are one of the oldest tools associated with the profession, but modern ones are far from those used a few decades ago. With better precision bits and power supplies, dental drills can help a dentist work more quickly and efficiently with less pain for the patient. Your dentist can even switch power supplies to accommodate different tools and drilling needs for a more versatile tool.