Electric drills have been making and impact on American dentistry. Although their rpm’s are slower with only a maximum speed of 100,000 rpms, they cut with more torque and less chatter. They also are quieter. These characteristics mean that they cut faster and smoother with less noise and vibration.
Our office started using this technology over 5 years ago. We purchased a system manufactured by Kavo – I liked the balance of the hand piece and its relative ease of use. After a short learning curve, decided to use this drill for all of our crown preparations. This decision has resulted in faster and better crown preparations.
A disadvantage of the electric drill is its bigger size, and heavier weight. For small preparations that require fine manipulations, a standard air turbine drills can provide a dentist with more hand control. Also some patients can not open their mouths wide enough to accommodate the electric drills use for use on back teeth.