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How materials selection can impact restorations

- Sep 12, 2018 -

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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

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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