24 doctors weighed in:

How long should a porcelain crown on a molar tooth last?

24 doctors weighed in
Dr. Robert Mokbel
Dentistry
5 doctors agree

In brief: 5 to 25 years

In general, according to the insurance industry at least 5years.
We prefer to think between 10 to 30 years. It wil depend on a lot of factors such as oral hygiene. Check up visits, quality of workmanship, dental materials skills and expertise of the dentist. They tend to fail because of fracture of the porcelain, new caries around the gum line or even from gum disease that weakens the bone.

In brief: 5 to 25 years

In general, according to the insurance industry at least 5years.
We prefer to think between 10 to 30 years. It wil depend on a lot of factors such as oral hygiene. Check up visits, quality of workmanship, dental materials skills and expertise of the dentist. They tend to fail because of fracture of the porcelain, new caries around the gum line or even from gum disease that weakens the bone.
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Dr. Rod Zimmerman
Dentistry
3 doctors agree

In brief: Varies

Can last a short period to a lifetime.
Factors greatly affect longevity bite force on molar (ie. Grind or clenching increases likelihood of fx), diet (ie. Chewing ice, nuts will increase risk of porcelain fx), homecare/diet which influences the risk of caries under your crown, and clinical parameters that make for a successful crown.

In brief: Varies

Can last a short period to a lifetime.
Factors greatly affect longevity bite force on molar (ie. Grind or clenching increases likelihood of fx), diet (ie. Chewing ice, nuts will increase risk of porcelain fx), homecare/diet which influences the risk of caries under your crown, and clinical parameters that make for a successful crown.
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Dr. Tracy Benhamou
Dentistry
3 doctors agree

In brief: Hard to say

A crown should last according to your insurance five years.
I would be disappointed in anything less then 10 years. But it depends on many factors.

In brief: Hard to say

A crown should last according to your insurance five years.
I would be disappointed in anything less then 10 years. But it depends on many factors.
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Dr. Matt Fulmer
Dentistry
2 doctors agree

In brief: Depends

It is hard to determine exactly how long porcelain on a crown "should" last.
In a patient with no parafunctional or damaging grinding habits, etc. The porcelain can last many, many years. However, porcelain can commonly fracture off a crown. There are many causes for this and it is not terribly uncommon.

In brief: Depends

It is hard to determine exactly how long porcelain on a crown "should" last.
In a patient with no parafunctional or damaging grinding habits, etc. The porcelain can last many, many years. However, porcelain can commonly fracture off a crown. There are many causes for this and it is not terribly uncommon.
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Dr. Anna Guarna
Dentistry
2 doctors agree

In brief: 5-10 years

If well maintained a crown should last between 5-10 years.
Additional factors come into play. For example, chewing hard foods, or excessive forces due tgrinding/clenching (bruxism) can lead to porcelain fractures and or tooth loss. Additionally, if the crown margins (edges of the crown which run along the gum line) are not well maintained by proper brushing, the crown may be lost to decay.

In brief: 5-10 years

If well maintained a crown should last between 5-10 years.
Additional factors come into play. For example, chewing hard foods, or excessive forces due tgrinding/clenching (bruxism) can lead to porcelain fractures and or tooth loss. Additionally, if the crown margins (edges of the crown which run along the gum line) are not well maintained by proper brushing, the crown may be lost to decay.
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Dr. Amishi Patel
Dentistry
2 doctors agree

In brief: ABout 7-10 years

Most crowns if well taken care of will last last 7-10 years.
However, it is important to have your regular annual dental checkups and cleanings to keep things healty.

In brief: ABout 7-10 years

Most crowns if well taken care of will last last 7-10 years.
However, it is important to have your regular annual dental checkups and cleanings to keep things healty.
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Dr. SG Erman
Family Medicine
2 doctors agree

In brief: 10 yrs

Average lifespan of a crown is around 10 years.

In brief: 10 yrs

Average lifespan of a crown is around 10 years.
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Dr. Thomas Rohrer
Dentistry
1 doctor agrees

In brief: It depends...

There is not a short answer for this one.
Many factors affect the longevity of restorations: quality of the restoration, fit of the restoration (i.e. Open margins), quality of the impression, materials used, home care, occlusion, and normal tear and wear. On average, a crown should last at least five years (exceptions apply), but a good fitted, good quality crown could last up to 20+ years.

In brief: It depends...

There is not a short answer for this one.
Many factors affect the longevity of restorations: quality of the restoration, fit of the restoration (i.e. Open margins), quality of the impression, materials used, home care, occlusion, and normal tear and wear. On average, a crown should last at least five years (exceptions apply), but a good fitted, good quality crown could last up to 20+ years.
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Dr. Frank Berman
Dentistry
1 doctor agrees

In brief: Indefinitely

There is no set time frame for it to last...

In brief: Indefinitely

There is no set time frame for it to last...
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1 doctor agrees

In brief: 7-10 years

There are many factors that influence the life of a crown.
How well you take care of it is probably the most important. A porcelain crown can break just like a natural tooth if it is traumatized.

In brief: 7-10 years

There are many factors that influence the life of a crown.
How well you take care of it is probably the most important. A porcelain crown can break just like a natural tooth if it is traumatized.
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