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.
Dr. Robert Mokbel
Dr. Robert Mokbel
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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.
Dr. Rod Zimmerman
Dr. Rod Zimmerman
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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.
Dr. Tracy Benhamou
Dr. Tracy Benhamou
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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.
Dr. Matt Fulmer
Dr. Matt Fulmer
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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.
Dr. Anna Guarna
Dr. Anna Guarna
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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.
Dr. Amishi Patel
Dr. Amishi Patel
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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.
Dr. SG Erman
Dr. SG Erman
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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.
Dr. Thomas Rohrer
Dr. Thomas Rohrer
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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...
Dr. Frank Berman
Dr. Frank Berman
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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.
Dr. William Ledford
Dr. William Ledford
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Dr. Louis Gallia
Surgery - Oral & Maxillofacial
In brief: Varies
Should be permanent.
Situations (trauma) may shorten life of crown.

In brief: Varies
Should be permanent.
Situations (trauma) may shorten life of crown.
Dr. Louis Gallia
Dr. Louis Gallia
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Dr. Peter Gross
Dentistry
In brief: About 5-15 years
There is no expiration date on crowns.
With good oral hygiene it may last indefinitely. Decay in the underlying tooth or fracture of the porcelain may be factors which necessitate replacing the crown.

In brief: About 5-15 years
There is no expiration date on crowns.
With good oral hygiene it may last indefinitely. Decay in the underlying tooth or fracture of the porcelain may be factors which necessitate replacing the crown.
Dr. Peter Gross
Dr. Peter Gross
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Dr. Gary Moore
Dentistry
In brief: Minimum of 5 years
They are designed to last longer, but it will depend on your home care, as well as getting your teeth professionally cleaned at least twice a year.

In brief: Minimum of 5 years
They are designed to last longer, but it will depend on your home care, as well as getting your teeth professionally cleaned at least twice a year.
Dr. Gary Moore
Dr. Gary Moore
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Dr. Emile Waked
Dentistry
In brief: It depends
Depending on the situation and the condition of the tooth that is receiving the crown.
Many factors can influence the longevity of a crown. Factors ranging from the general health of the patient, oral health, habits, etc... Longevity of porcelain crowns is very similar to any other crown. The dental profession estimate the life span of a crown around 15 years, but that is in optimal conditions.

In brief: It depends
Depending on the situation and the condition of the tooth that is receiving the crown.
Many factors can influence the longevity of a crown. Factors ranging from the general health of the patient, oral health, habits, etc... Longevity of porcelain crowns is very similar to any other crown. The dental profession estimate the life span of a crown around 15 years, but that is in optimal conditions.
Dr. Emile Waked
Dr. Emile Waked
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Dr. Jake Richards
Dentistry
In brief: Varies by use
I have seen estimates that range from about 8-15 years but not everyone is the same and not everyone takes care of their teeth the same.
Some will make a porcelain crown last 20+ years easily and others will have it fractured in less than 5 years. The other factor is the quality of the crown as well.

In brief: Varies by use
I have seen estimates that range from about 8-15 years but not everyone is the same and not everyone takes care of their teeth the same.
Some will make a porcelain crown last 20+ years easily and others will have it fractured in less than 5 years. The other factor is the quality of the crown as well.
Dr. Jake Richards
Dr. Jake Richards
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