Myonic Dental Bearings - Ceramic and Stainless Steel

Anyone who knows anything about dental turbines is aware that balanced impellers, and highly concentric rotors are extremely important. However, bearings are, without a doubt, the most important component.

Thank you Myonic for producing bearings for the dental industry which are as near to perfect as current technology will allow.

This reviewer can only attest to the results of using Myonic dental bearings on Star and Midwest highspeed handpieces, due to their limited availability for other brands at this time. Replacing old bearings with the Myonic ceramic bearings for the Star 430 series handpieces results in a turbine which is better than original, in our opinion. Likewise, using the Myonic stainless steel grease packed bearings on the Midwest Tradition, Quiet Air, and XGT is nothing short of music.

Okay, so maybe you don't get quite as excited about bearings as we do, but consider this - they last longer. Plain and simple, Myonic is the best bearing we have seen for the dental handpiece application.

If you currently use Star or Midwest equipment, ask your dealer if he/she can use them in your next repair.

And a shout out to the guys at Myonic - How about making your bearings available for Kavo, W&H, Bien-Air, and others. Hey, it doesn't hurt to ask!!! You never know who might be listening.

Why are Star 430 Handpieces so Popular?

At 49 grams, they are not the lightest.

At 17 watts, they are not the most powerful.

So what's so great about the Star 430?

One word - durability.

While everyone else is worrying about feather light and carpel tunnel syndrome, Dentalez has stuck with super strong, polished stainless steel on the Star 430 Handpieces.

Do you or your staff have a tendency to drop one occasionally? Have you ever dropped an $800 handpiece rendering it useless? The least little dent in the head will, many times, result in turbine binding. Don't throw it away. Many repair shops have head expanders for dent removal, similar to body shops removing dents in your car.

However, this will not be a problem with the Star 430 series highspeed dental handpiece. Drop it, throw it (hope it doesn't come to that), or drive your truck over it (for those a little harder to convince). It's highly probable that the handpiece will still run as new. Over time, usually many years, welded joints will become loose, but don't worry. Experienced handpiece repair techs can do a high temperature braze to repair these joints as new, followed by a machine polish which will return the handpiece to its original glorious luster. For those who prefer the fiber optic option, not to worry, those can be replaced also.

If you have handpieces exhibiting these type problems, check out DentalHandpieceRepair.com for a quick quote.

Feel free to get comfortable with the small, compact (11 mm head) design, because it will last as long as you wish to continue using it. Short of an occasional turbine replacement, the Star 430 series highspeed handpiece should provide years of trouble free use.

We consider it the Toyota Camry of dental handpieces.

Care to try one without draining your pocket book?

Check DentalHandpieces.com.

You will find tons of them listed here, from multiple dealers, new and used. Be sure to include a swivel connector if purchasing the SW type. Also, if you are a "do it yourselfer", you can find dental turbines for the 430 series cheap as well. Be sure to read the turbine buying section to ensure you are getting what you expect.

Behold the Hybrid Dental Handpiece

The Midwest Stylus ATC incorporates an air driven highspeed turbine capable of speeds upwards of 300K rpm, combined with electronic circuitry providing automatic pressure compensation as torque is applied.

Translation:

Air drives it, electronics control it.

Circuit board monitors speed and torque to apply pressure as necessary to maintain constant cutting power (20 Watts) over a wide range of operation. Max power at 150K rpm can be maintained through 300K rpm providing a cutting efficiency that's hard to match.

Unit can be installed seemlessly with existing equipment, but of course, only the Stylus ATC handpiece can be used on that connection. Optimum operating pressure is 60, so you will need about 70 psig at the control box. Pressure varies as torque is applied and removed. Lowering pressure immediately as doctor stops cutting should help to reduce turbine wear and hopefully result in fewer repairs.

Two sizes available - Medium size head with 4 port spray, & Mini head with single port.

Handpiece is light with good ergonomics, and contains cellular optics which are proven to hold up better in the autoclave.

HandpieceStore.com

Stylus ATC

Silent Dental Handpiece | Perfect Dental Turbine

Will we ever see a silent dental handpiece? This piece was sparked by a Dentist friend interested in, hypothetically, what it would require to create a silent dental handpiece powered by the perfect dental turbine. Lets design one. Your comments would be greatly appreciated.

A major source of noise emitted from any dental turbine, like a combustion engine, is from air or exhaust gases being expelled after use. Hence, the necessity for mufflers on automobiles. Most air driven handpieces currently have 4 lines (commonly referred to as 4 hole Midwest). The largest hole is exhaust, the smaller one next to it is the intake (air supply), and the two little ones are chip air and water. If you were to apply air to the intake without covering the exhaust, you would get much more noise. The hose on your unit helps dampen the noise as well.

Manufacturers making advances toward noise reduction are doing so, in part, by dampening air exhaust through various means, and sealing the handpiece head. Do understand, however, that good exhaust flow is required for proper operation. Dampening too much lessens efficiency, similar to sticking a potato in an automobile exhaust. One idea might be to have the unit's exhaust hose exposed to a vacuum, or something less than atmospheric pressure, which might help to expell the air more quietly. Of course a vacuum might require a reinforced hose, as a normal hose could collapse from the atmospheric pressure outside.

Much of the other noise generated comes from turbine vibration. I believe there is a term called "carnot" which refers to a perfect engine, ie.. 100% efficient. The perfect turbine would be completely without vibration,which in a perfect world would require:

1. Frictionless dental bearings (not yet invented)

2. Perfectly concentric dental rotor

3. Perfectly balanced dental turbine impeller

All combined into one component and fitted to the dental handpiece head such that 100% of supplied air is converted to output watts.

Of course, that's just the handpiece and turbine. We haven't put dental bur to tooth yet.

An absolutely razor sharp diamond bur, forged and tempered to rival a Samurai Sword, and cooled with perfectly atomized water spray from multiple ports providing 100% heat removal efficiency. Did you know spray pattern directly effects cutting efficiency?

Check the following link to ADA:

http://jada.ada.org/cgi/content/full/133/2/184

Also, check this link. Focus is noise and hearing loss, but contains references to causes of the noise.

http://jada.ada.org/cgi/content/full/133/12/1639?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=turbine&andorexactfulltext=and&searchid=1&FIRSTINDEX=0&sortspec=relevance&resourcetype=HWCIT

Again, comments would be greatly appreciated.

DentalHandpieces.com

A little history

When G.V. Black invented the first peddle driven rotary drill for the Dentistry application, he pioneered an industry. Advancing from peddles to electric motors, the belt driven "Jack Rabbit" drills are still in use today. As necessity meets ingenuity, the evolution of the modern Dental Handpiece continues with the air driven turbine. Coupled with super sharp diamond and carbide cutting burs, and speeds upwards of 450,000 revolutions per minute, modern handpieces can literally dissolve some of the hardest substances known to man. Equipment manufacturers such as Kavo, NSK, Dentsply (Midwest), and Dentalez (Star) have spent millions on the development of new and inventive ways to prepare, and repair teeth. One of the highest ongoing expenses of today's dentist is the repair and replacement of handpieces. Handpiece Review will attempt to provide information designed to lessen these expenses by finding and writing about the best values in this constantly expanding industry.

DentalHandpieces.com