Innovation in dental materials over the last decade has made
a number of choices available for restoring teeth with full coverage
restorations. Although gold crowns, considered the gold standard have proven
predictable in the long term, improvements in the beauty, strength and
durability of materials like porcelain and zirconia have made more natural looking and lifelike
cosmetic restorations possible.
What is the right
crown material?
Consider the following
aspects to help with the decision.
Why do I need a crown?
Do I grind my teeth?
Is the restoration on
a front tooth or a back tooth?
Is the tooth visible
in my smile zone?
Are my teeth
sensitive?
Am I allergic to any
materials?
What is the long term
predictability with each material option?
What is my periodontal
condition?
Frequency of
periodontal maintenance
Is my opposing tooth a
natural tooth or restored?
If restored, with what
material?
Answering the above questions will make the selection of
crown material far more predictable and comfortable.
Porcelain fused to Metal (PFM) is the most commonly used
crown. PFM, or porcelain dental crowns, are lined by metal on the inside (See figure 2.) and
shaped with tooth colored porcelain which is baked onto the metal inside,
simulating the natural tooth in shape, shade and anatomy.
Gold Alloy has been used in dentistry for over 100 years and crowns fabricated in gold are still the most long lasting crowns. Other than its objectionable color in the current esthetic age, gold alloy is still most compatible in wear and other properties to the natural teeth. With good hygiene practices, good crowns usually last a lifetime and are a great choice for teeth in the back of the mouth.
Resin Crowns are the least used in dentistry but can be used in a bite that is aggressive to prevent wear of the opposing teeth. Gold crowns wear through and porcelain wear outs the opposing teeth in a heavy bite. Resin crowns do wear and roughen over time.
Cost is not significantly different for the different material (except resin) and the choice is based on what is best suited for the mouth and patient preference. Regardless of the material choice, crowns do last a long time and considered to be the most successful procedure in dentistry. Contact us today for tooth crowning in Chino CA.
Figure 1. Outside: PFM (Left) vs. Ceramic (Right)
Figure 2. Inside: Ceramic (Left) vs. PFM (Right)
Figure 3. Variety of Crown Materials