Introducción al CAM dental

Page 1 Page 1 WorkNC Dental - 2014

Sescoi - Vero Software Limited 50 Bld General de Gaulle , Sancé, CS50609 , 71009 MACON CEDEX, FRANCE


Four components to Dental Milling…

• Scanner – from impression or chair side • CAD Software – Used on scan data to design final

piece to be machined • CAM Software – creates the CNC cutterpaths which

drive the CNC milling machine • Mill – creates the physical components by cutting

material


Dental CAD / CAM


Different Systems for Dental Milling …

• Closed Systems • Open Systems • Turn Key Systems • Opened Systems “formerly closed” • Closing Systems “formerly open”


Closed Systems …


Closed Systems

Start to finish complete package which utilizes their own customized hardware and software. Examples: Sirona®, Lava®, Kavo® (old Macintosh computers were closed also) You are buying a complete system encompassing all components of manufacture (scanner, CAD, CAM, mill)


Advantages: • All the selections have been done for you. • Purchase and Support from one company. Disadvantages: • May be locked into purchasing their materials / blanks. • May be more expensive to purchase and maintain.

• Locked into one process model – more…

Closed Systems


Locked into one process model : If everyone has the same closed system, then no single company can have a competitive milling advantage over any other company, as they all use the same system. Closed systems do not allow for innovation within the process, or for companies willing to attempt new or different methods to implement them. They allow for no competitive advantage.

Closed Systems


Open Systems …


End user selects the individual pieces of the process, based on their requirements. (scanner, CAD, CAM, mill) If they want to cut metal, they can choose a mill good for metal, if they only want to cut soft materials, they may choose a different machine.

Not locked into any particular process.

Open Systems


Advantages : • Allow Labs to make the best

selection based on their individual goals and objectives.

• Allow for continuous innovation and for labs to create their own competitive advantages.

• Allow for labs to choose among several material and tooling suppliers for cost efficiency.

Open Systems


Turn Key Systems …


A complete or semi-complete bundle of different open components. A vendor assembles his favorite open components into a “turn-key” solution. Selling a package of scanner, software and mill, often with Value Added training and support.

Turn Key Systems


Advantages: • Training, service & support from one vendor • Simplicity when choosing • Can provide some bundled cost advantages Disadvantages: • Vendor may not be familiar with other or newer/better

open components • Vendor may not have selected the best open components

for your business needs.

Turn Key Systems


Opened Systems …


These are systems that were closed, but are now opened, allowing for the use of other open components. Understanding how to work around the limitations of a closed system utilizing open components. Advantages: • Cheaper materials. • Better software and programming

options if you have already invested in a closed system.

Opened Systems


Closing Systems …


Typically found in turn-key applications This is when a turn key provider of open components utilizes some methods to limit the manufacturing system. For example, having a turn key solution and then using a system of serial numbers to force material/stock purchases from one source, instead of truly open sourcing.

Closing Systems


What to Consider when Purchasing a Milling System ?

Determine your needs.

• What parts will you be milling? • What materials will you be milling? • Will you need multi axis (5 axis)? • What volume of parts do you plan to manufacture?


Simple copings and bridges may require less programming and need less CAD or CAM functionality than bars or implant bridges. Ensure you get a software demonstration on your sample data.

What Parts will you be Milling?


Softer materials like Zircon, wax, pmma may require less horsepower and torque for milling than harder materials such as CrCo and Titanium. • Cut a sample in the material you

plan to mill.

• In some cases, two slower mills may cost less than one high-end mill, yet overall out-produce it.

What Materials will you be Milling?


• 3+1 Axis – can only mill top and bottom.

• 3+2 Axis – Can mill from any angle. It rotates into position, then mills in a 3-axis motion.

• 5-Axis – Can rotate and mill simultaneously (undercuts).

Will you need Multiaxis - 5-Axis?


• Sizes and Speeds of Mills vary greatly.

• Costs also vary greatly Make a realistic assessment of volume and purchase milling machines accordingly.

What Volume do you plan?


• Wet Milling: flooding or spraying with coolant and oils, often required for certain materials such as Glass ceramic or Titanium …

• Dry Milling: WAX, Zircon…

• May be difficult to go back and forth between wet & dry. Will this be important to you?

Milling – Wet or Dry


• Air Compressor

• Sintering Oven

• Sturdy Table / Mounting location

• Vacuum for dust (Zircon)

• Chip evacuation (metals)

Don’t forget the little things


Technology

Introducción al CAM dental