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Inside Dentistry
November 2019
Volume 15, Issue 11

Electric Handpiece Delivers Ergonomic Precision

Joseph Blaes, DDS, on the EVO.15 Handpiece and MX2 Motor

Preparing teeth for restorations is my favorite thing to do. I really look forward to going to the office. From the moment that I sit down at my chair, I start visualizing how the tooth will look when I am finished preparing it. With my Bien-Air EVO.15 handpiece and MX2 electric motor, I have constant, quiet power. This combination allows me to complete precise tooth preparations.

I have been using a Bien-Air electric handpiece for more than 30 years, and I have heard all of the excuses that clinicians make for not buying one. The primary complaint is usually that they are too heavy. If you try to hold an electric handpiece in a pinch grip at the head of the handpiece like you would an air-driven handpiece, then it is too heavy. The right way to hold an electric handpiece is to balance the motor in the fleshy part of the hand between the thumb and the index finger so it can be easily guided. It is really all about balance.

The Bien-Air EVO.15 is shorter and lighter than its predecessors, and its small, shockproof stainless steel head provides remarkable maneuverability and accessibility to third molars. In fact, it is the same length as an air-driven handpiece, so it is easier to balance, especially for clinicians with smaller hands. This is a high-torque handpiece that does not stall. The motor's speed ranges from 500 rpm to 200,000 rpm. This allows the dentist to prepare teeth at a higher rpm for a quick reduction of enamel, reduce the rpm to finish the preparations, and then use even slower speeds to polish restorative materials.

The EVO.15 cuts teeth with more precision and in less time because the bur is actually milling the tooth rather than chopping into it. The handpiece produces constant high torque, much less noise, and no vibration because the bur is running true in the Accu-Chuck PreciPlus bur-locking and rotation drive mechanism, and combined with an LED light and two dualook multistrand optical glass conductors, the intraoral visibility is improved from wider angles.

Regarding patient safety, the Accu-Spray Quattro Mix converges four asymmetrical laser-precise air/water sprays on the tip of the bur for rapid and even cooling of the operative field, and there is even less worry about potentially burning your patient's intraoral tissue because of the addition of CoolTouch+ heat-arresting technology. This technology revolutionizes patient safety by preventing the handpiece's head from overheating, which significantly decreases the potential for burn injuries.

Any clinician who has been avoiding acquiring an electric handpiece due to concerns regarding their size, weight, and ergonomics should check out Bien-Air's Micro-Series handpieces.

Key Takeaways

1. In a committed effort to promote patient safety, Bien-Air has introduced CoolTouch+, the world's first and only heat-arresting system proven not to exceed human
body temperature

2. Up to 30% shorter and 23% lighter than traditional handpieces, Bien-Air's new Micro-Series models are designed to be easily grasped, optimizing work comfort with less strain on the hand, arm, and shoulder

3. The Accu-Chuck PreciPlus bur-locking and rotation drive mechanism eliminates all vibrations and provides unequaled stability and comfort for the most precise dental work. Conversely, bur release is quick and safe, thanks to Bien-Air's unique Soft Push system

About the Author

Joseph Blaes, DDS
American College of Dentists
Private Practice
St. Louis, Missouri

Manufacturer Information

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