Making accurate master models

It is vital that the master stone model accurately represents the clinical situation - no CAD/CAM system can compensate for a bad model.

Renishaw's pioneering research into materials and techniques has resulted in guidelines that will deliver the best possible framework.

Accurate model production

Renishaw's specially formulated dental stone exhibits minimal distortion as it sets, as proven by Renishaw's pioneering research into dental materials and techniques.  De-ionised water should be used to mix the stone, as tap water has been shown to affect the integrity of the model.

Refer to the inciseTM laboratory guidelines for detailed instructions on preparing, mixing, pouring, dry-trimming and air blasting the stone model.

Preparing the master model for scanning

Once the die stone has set, the next stage is to trim the ridge close to the dies, section the model and carefully undercut below the margin line to form a defining edge, creating a minimal undercut. 

 

 

To maintain the integrity of the margin line, Renishaw recommends using a graphite lead pencil to mark out the margin, followed by an application of die hardener.

 

 

The trimmed, sectioned model is then re-assembled using the Pindex® model system.

 

 

 

Refer to the inciseTM laboratory guidelines for instructions on preparing the master model for scanning.

Buy inciseTM-approved materials

Tested and recommended for the inciseTM process, Exact Dental Supplies provides all the products needed to take the most accurate impressions.

www.exactdentalsupplies.com