Biomaterials Game

Student Dr. Bob prepared and impressed a #13 lithium disilicate crown. After pouring a model, he scanned the model and asked you to review the scan. Do you have any recommendation(s) for him?

• Modify preparation and scan intraorally

• Scan intraorally

• Design the crown

• Change the material to zirconia

Which of the following milling blocks do we have at UTSD?

• IPS emax CAD

• IPS emax Zircad

• Vita Suprinity

• Tetric CAD

What is the laboratory technician and Dr. Thompson paging phone number?

• 832-356-9817

• 832-356-6812

• 832-356-6921

• 832-356-1457

Tooth #4 is designed as a lithium disilicate crown. When checking the material thickness, 0.7 mm (yellow) was measured on the occlusal surface. What is the next step in this case?

• Reprep and rescan

• Use rubber tooth to adjust the design

• Mill the restoration

• Check the occlusion and determine if there is enough space to raise the material thickness.

A precementation BW radiograph was completed of #4 as shown in the image provided. What is your next step?

• Cement the crown

• Check interproximal contacts

• Check the crown margin clinically

• Remake the crown

What is the minimal thickness of an IPS e.max ZirCAD prime (MT) posterior crown?

• 0.6 mm

• 1.0 mm

• 1.5 mm

• 2.0 mm

When was the first chairside ceramic CAD/CAM inlay produced?

• 1975

• 1995

• 1985

• 2000

Hybrid-Ceramics or Polymer-Infiltrated Ceramics are indicated for the following EXCEPT?

• Crown

• Inlays

• Onlays

• Bridges

Lithium disilicate milling blocks have a flexural strength of ___________ MPa.

• 150

• 300

• 360

• 560

This crown preparation guideline is for what material?

• Zirconia

• Lithium Disilicate

• Porcelain Fused to Metal

• Gold