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HOW IS LARES DIFFERENT?
Outstanding Service By Experienced Professionals - Call Lares Research and you’ll notice the first DIFFERENCE right away. It begins when you speak with one of our professional account managers. Averaging over 15 years of experience selling and servicing Lares handpieces, their knowledge is unsurpassed. They are pros at determining exactly what handpiece connections, back ends, head sizes, swivel couplers, etc. you need to make your practice run efficiently — at the very best price combination Lares offers. Exceptional Quality You Can Feel - A few short days later you’ll receive your Lares handpieces and that’s when you will notice the third DIFFERENCE. Lares highspeeds are manufactured to exacting standards with tolerances of as little as 20 millionths of an inch. You will feel the light weight, balance and quality of cut that our precision ensures. Your Lares highspeed will perform better than many highspeeds costing hundreds more! Where Are Lares Handpieces Made? - Lares highspeeds are assembled by our American workers in our Chico, California factory. Our skilled machinists fabricate most of the 40 or so precision components that make up a Lares highspeed from raw materials using our advanced computer controlled (CNC) equipment. From those components our assemblers build and test every Lares highspeed to our rigid quality and performance standards.
757 Workhorse Prostyle 4HLC
- Full size head for powerful torque
- New gentler handle bend radius for reduced hand fatigue and better control
- Super light weight with secure grip design
- Low maintenance, long life ceramic bearings with Debris Shield™
- ISO standard 4 hole fiber optic backend
- New four-port spray with improved water atomization for better spray coverage
- Convenient push button bur changing with carbide SuperChuck™
- New solid rod cellular optics for 100{9779add11b377aa96515312879895432724f3009a8adbf2893ecc1f376cc29e6} brighter, longer lasting illumination
- Quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 360,000 rpm
- Power: 20 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 14.65 mm
- Head diameter: 13 mm
- Overall head length (w/19 mm bur): 22 mm
- Weight : 48 grams
757 Workhorse Prostyle 4HC
- Full size head for powerful torque
- New gentler handle bend radius for reduced hand fatigue and better control
- Super light weight with secure grip design
- Low maintenance, long life ceramic bearings with Debris Shield™
- ISO standard 4 hole backend
- New four-port spray with improved water atomization for better spray coverage
- Convenient push button bur changing with carbide SuperChuck™
- Quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 360,000 rpm
- Power: 20 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 14.65 mm
- Head diameter: 13 mm
- Overall head length (w/19 mm bur): 22 mm
- Weight : 48 grams
557 Turbo+ Prostyle 4H
- Compact head size for superior access and visibility
- New ergonomically optimized grip diameter and gentler handle bend radius for reduced hand fatigue and better control
- Super light weight with secure grip design
- Long life steel bearings
- ISO standard 4 hole backend
- Convenient push button bur changing with carbide SuperChuck™
- Fast cutting, quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 450,000 rpm
- Power: 18 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 12.6 mm
- Head diameter: 10.4 mm
- Overall head length (w/19 mm bur): 21.5 mm
- Weight : 43 grams
557 Turbo+ Prostyle 4HL
- Compact head size for superior access and visibility
- New ergonomically optimized grip diameter and gentler handle bend radius for reduced hand fatigue and better control
- Super light weight with secure grip design
- Low maintenance, long life ceramic bearings with Debris Shield™
- ISO standard 4 hole backend
- Convenient push button bur changing with carbide SuperChuck™
- Fast cutting, quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 450,000 rpm
- Power: 18 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 12.6 mm
- Head diameter: 10.4 mm
- Overall head length (w/19 mm bur): 21.9 mm
- Weight : 43 grams
557 Ultralite Prostyle SLC
- Compact head size for superior access and visibility
- New ergonomically optimized grip diameter and gentler handle bend radius for reduced hand fatigue and better control
- Super light weight with secure grip design
- Low maintenance, long life ceramic bearings with Debris Shield™
- MULTIflex* compatible 360° swivel and quick disconnect
- Convenient push button bur changing with carbide SuperChuck™
- New solid rod cellular optics for 100{9779add11b377aa96515312879895432724f3009a8adbf2893ecc1f376cc29e6} brighter, longer lasting illumination
- Fast cutting, quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 450,000 rpm
- Power: 18 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 12.6 mm
- Head diameter: 10.4 mm
- Overall head length (w/19 mm bur): 21.9 mm
- Weight : 40 grams
557 Euro Prostyle SLC
- Compact head size for superior access and visibility
- New ergonomically optimized grip diameter and gentler handle bend radius for reduced hand fatigue and better control
- Solid feel with smooth easy to clean grip
- Low maintenance, long life ceramic bearings with Debris Shield™
- MULTIflex* compatible 360° swivel and quick disconnect
- Convenient push button bur changing with carbide SuperChuck™
- New solid rod cellular optics for 100{9779add11b377aa96515312879895432724f3009a8adbf2893ecc1f376cc29e6} brighter, longer lasting illumination
- Fast cutting, quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 450,000 rpm
- Power: 18 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 12.6 mm
- Head diameter: 10.4 mm
- Overall head length (w/19 mm bur): 21.9 mm
- Weight : 43 grams
757 Euro Prostyle SLC
- Full size head for powerful torque
- New gentler handle bend radius for reduced hand fatigue and better control
- Solid feel with smooth easy to clean grip
- Low maintenance, long life ceramic bearings with Debris Shield™
- MULTIflex* compatible 360° swivel and quick disconnect
- New four-port spray with improved water atomization for better spray coverage
- Convenient push button bur changing with carbide SuperChuck™
- New solid rod cellular optics for 100{9779add11b377aa96515312879895432724f3009a8adbf2893ecc1f376cc29e6} brighter, longer lasting illumination
- Quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 360,000 rpm
- Power: 20 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 14.65 mm
- Head diameter: 13 mm
- Overall head length (w/19 mm bur): 22 mm
- Weight : 55 grams
757 Ultralite Prostyle SLC
- Full size head for powerful torque
- New gentler handle bend radius for reduced hand fatigue and better control
- Super light weight with secure grip design
- Low maintenance, long life ceramic bearings with Debris Shield™
- MULTIflex* compatible 360° swivel and quick disconnect
- New four-port spray with improved water atomization for better spray coverage
- Convenient push button bur changing with carbide SuperChuck™
- New solid rod celular optics for 100{9779add11b377aa96515312879895432724f3009a8adbf2893ecc1f376cc29e6} brighter, longer lasting illumination
- Quiet operation
- Durable stainless steel construction
- New super smooth head profile for fast, easy cleaning
- One year warranty
Specifications
- Free running speed: 360,000 rpm
- Power: 20 watts
- Minimum air pressure: 32 psi/220 kPa
- Maximum air pressure: 40 psi/275 kPa
- Head length: 14.65 mm
- Head diameter: 13 mm
- Overall head length (w/19 mm bur): 22 mm
- Weight : 44 grams
Dental Handpiece Torque vs. Power: Is There A Difference?
Often dentists and even some handpiece suppliers use torque and power interchangeably. They are not the same and their values are defined by totally different units of measure.
First consider this:
- In the world of engineering, power is defined as “the rate of doing work”.
- Torque is defined as “a force applied at a given distance from the center of rotation that causes rotation”.
Here is an example illustrating the difference between power and torque in the case of a pickup truck:
- The power (horsepower) of a pickup truck’s engine determines how long it will take the truck to tow a 5,000 lb trailer to the top of a ½ mile hill.
- The torque (ft-lbs) of a pickup truck determines if it can pull a particularly difficult stump out of the ground.
In the world of dental handpieces…
Power is measured in Watts.
So for the application of cutting a tooth with a highspeed handpiece, the power of the handpiece would determine how long it would take to remove a predetermined amount of tooth material.
Torque – for handpieces would translate into “stall torque” – is measured in N-cm.
So for the application of cutting tooth with a highspeed handpiece, the torque of the handpiece would determine how much pressure could be applied to the bur before the handpiece stalled during cutting.
To generate cutting power…
A highspeed handpiece needs both rotational speed (rpm) and torque. The product of the two (speed x torque) determines its power and how fast tooth material is removed.
- Smaller head handpieces tend to have higher speed (rpm) and lower torque yet can still generate good cutting power while delivering better accessibility and visibility.
- However, larger head handpieces typically have much higher torque and somewhat lower speed (rpm) but higher overall cutting power. So if access and visibility are not a problem, a larger head handpiece will serve to remove the most tooth material in the least amount of time.
Clinically, power is clearly more important than torque and leading handpiece manufacturers typically publish the maximum cutting power their handpieces deliver at maximum allowable air pressure.
