What’s in a Crown? Here’s How Materials Compare
Getting a crown? Find out the benefits behind the different materials available to you, courtesy of the American Dental Association.
|
|
All-porcelain
|
Porcelain fused to metal
|
Gold, copper, and base metal alloys
|
|
Durability
|
Brittle, may fracture under heavy biting loads1
|
Very strong and durable1
|
High corrosion resistance prevents tarnishing; high strength and toughness resist fracture and wear1
|
|
Resistance to wear
|
Highly resistant to wear, but can rapidly wear opposing teeth if its surface becomes rough1
|
Resistant to wear and gentle to opposing teeth1
|
|
Resistance to fracture
|
Prone to fracture when placed under tension or on impact1
|
Porcelain is prone to impact fracture; metal is strong1
|
Highly resistant to fracture1
|
|
Sensitivity
|
Low thermal conductivity reduces likelihood of discomfort from heat and cold1
|
May result in early post-placement discomfort from heat and cold1
|
May result in early post-placement discomfort from heat and cold1
|
|
Aesthetics
|
Color and translucency mimic natural tooth appearance1
|
Can mimic natural tooth appearance, but metal limits translucency1
|
Metal colors do not mimic natural teeth.1
|
1 “Comparison of Indirect Restorative Dental Materials.” American Dental Association. www.ada.org/prof/resources/topics/materials/indirect.asp Accessed 2008.
Online Medical Reviewer:
Weber, Hans-Peter, DMD
Date Last Reviewed:
10/8/2008
Date Last Modified:
10/8/2008
The views represented by this article are that of the author and not of Delta Dental. This article is provided for information only. Please consult with a licensed dentist to discuss the best way for you to improve or maintain your oral health.
In all cases, specific group contract provisions, benefits, limitations and exclusions take precedence over oral health recommendations given here. We recommend that you contact your dental benefits carrier to determine the specific limitations and exclusions for your group.