How materials selection can impact restorations
Sep 12, 2018| 
While you can trust your lab to choose the right materials for your restorations, it’s important to understand material limitations because each case is unique and many situations call for tradeoffs. Here are some advantages and disadvantages of some of the most common types of lab materials.
1.Porcelain fused to metal (PFM)
PFM crowns have a long and tested track record; their ability to provide predictable, lasting results has made it a popular material selection for dentists over the years.
Advantages
Been around for a long time and proven to work
High flexural strength for large bridges
Great adaptation to margins
Blocks out a dark Dentin
2.Zirconia
Zirconia is becoming one of the most popular materials for dental crowns, but it still has limitations dentists should be aware of.
Advantages
Inert material
All-ceramic crown
Blocks out a dark Dentin
Indicated for multi-unit bridges
No alloy cost means a fixed price
Very strong for posteriors, 765-1,100 megapascals
Cementable
Can be layered for esthetics