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So many dentists are guilty of this, but most don’t even know what the phrase means, nor do they know that it costs them money. “Cheating the bur” means not fully seating the bur into the chuck in an effort to gain added length. It may make your job a little easier, but it wreaks havoc on your turbines. Chucks are designed to balance the load between both bearings and to maintain the concentricity of the rotating bur. Failure to fully seat the bur puts side load on the front bearing, which it is not designed for, and will cause premature failure over time. The chuck will also oscillate when the bur is not fully seated, and again, they are not designed for this, so premature chuck failure can result as well. Dentists who cheat the bur routinely will have more frequent repairs and are more likely to not have their repair warranty honored due to misuse. Solution: Buy longer burs!