RAW 2.0 : Game Over

 Clinical Journal 15/08/2016

RAW is a 100% pure digital workflow that has its roots in the SKYN concept. It is designed to copy the unaltered geometry of nature. 
It integrates a simplified 3D version of smile design, that works as wireframe for importing natural shapes. Yes, you can create your own database.
It is designed to be precise and have an easy integration with surgery / implant dentistry. 
RAW defines a clear synergy between 3D print and CAD/CAM in the clinical workflow.  
Below you can see the highlights of this workflow.

Design is dead. Long live design!

From our point of view, evolution is heading towards simplicity. As an alternative to DSD, we are using one simple 3D template, that makes it effortless to plan. You no longer need to design, all you need is to define the restorative space, in a tri-dimensional way and import natural design inside it. 
In this case we used natural morphology from our own 3DNA™ database, but you can use literally any database, or any shape and texture. 
We expect a version of this workflow to be available soon in 3Shape Practice Lab.

Design as a surgical guide and prep guide. Flapless bone reduction

The design will serve as a reduction guide for both hard and soft tissue. Soft tissue will be reduced first, followed by flapless bone reduction to ensure biologic width. After tissue is recontoured, we can pack cords and prepare through the mock-up.
This means we can deal with both surgery and preparation in the same day.

Design will guide both procedures, yet the design itself remains unaltered, unless we choose to make modifications. 
We will digitally erase the original scan, and rescan the areas we modified ( surgery and prep ).
This method eliminates all potential alignment errors.

3D Printed Alveolar Model and Milled PMMA Test Drive

The prep model is printed to an alveolar model, as well as a control model, both from pure scan data. PMMA restorations are milled for provisionalization and test drive ( if necessary ) for the case. At this stage by milling instead of using bis-acryl, we can spot and eliminate all errors such as undercuts, minimal thickness and insertion problems. 

 Milled ceramics. Unaltered design.

Ceramics are milled from Empress Cad Multi blocks and fitted on the 3D Printed Alveolar model. Contact points are adjusted if necessary. No modifications are made in the shape and texture as we try to preserve the natural design. Polish, stain and glaze.

Regarding Fit and Precision

First of all, there is no distorsion from the traditional impression. The resolution of the print is 100, 50 or 25 microns. For Mock-up models we use 100 microns. For work and control model we use 25 microns. Ever since we started working with 3D Print, several updates reduced printing time with almost 40% and new materials are coming to the market every month and the trend will continue, most likely accelerate. Pictured below is the fit we achieved on a 0.2 mm chamfer. Milled restoration on 3D printed die.

Regarding natural morphology and surface texture 

Pictured below you can see that on the left side the PMMA and ceramic in the same try-in, and on the right side, the bonded ceramic. As you can see, the shape and morphology are identical and are not man-made. They are created by the best waxer in the world, nature. We simply found a way to copy it. 


RAW - Copying natural morphology

  Dentcof, Timisoara, 30 July - 01 August 2020
  Available places: 1 / 12
  Available in Unavailable
  Course language: English
Published: 14 08 2016 Last review: 28 09 2020
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