Electric Handpieces (Dental Drill)
There are basically two types of handpieces, air-driven and electric. Electric handpieces are much stronger than air-driven due to the fact that a motor is spinning the bur as opposed to air. This allows the doctor to remove decay at a faster pace. This will cut down on the time it takes to complete a procedure.
Electric handpieces are also much more quieter. They have less of a high pitched noise as the air driven type. This provides for a more comfortable experience than before.