Category Archives: Dental Crowns

My crown is staining

I have two crowns on my upper arch toward the front of my smile. They looked fine until a few weeks ago. Now they’re dull and they are becoming stained. Is there anything I can do to fix it?

Nancy- Boston


It sounds to me like your hygienist used a prophy jet or something similar on it during your last cleaning. Were they aware that you had crowns on your teeth? If so, they weren’t very competent in how they handled your cleaning. That will take the glaze off your crown.

It is possible to restore it with a diamond polish. If your dentist doesn’t already know the procedure then I would go to a dentist more familiar with cosmetic procedures and care.

Once you get these restored, make sure your new hygienist is aware they cannot be cleaned with a power polishing spray.

This blog is brought to you by Lafayette Dentist Dr. John Theriot.

Bleaching crowns

I have two crowns placed on my front teeth. Now there’s some dark line on the teeth by the gumline. Do I need to get them replaced or can I just have them bleached?

Sylvia S. -Sheridan, Arkansas


The reason for the dark line at your gumline is your dentist placed porcelain fused to metal crowns on your teeth. I don’t like those on front teeth because of the inevitable black line. Instead, I prefer to use all-porcelain crowns.

Unfortunately, teeth whitening will not solve this problem. In fact, whitening doesn’t work on dental work at all. My advice is to get them replaced, but with the all-porcelain crowns. If, however, you were wanting whiter teeth, I suggest you whiten your teeth first and then have your dentist match the new crowns to the whiter color.

This blog is brought to you by Lafayette dentist Dr. John Theriot.

You may also be interested in learning about CEREC crowns.

Crowns with a metal allergy

I recently had a root canal on one of my molars. The other molars need crowns too. My dentist says I need porcelain fused to metal crowns because they are stronger. The problem is I have a metal allergy. What should I do?

Jennie P. from Little Rock, AR


If you’ve gotten a rash from inexpensive jewelry than you are probably allergic to nickel. A good dentist will include a question about sensitivity to metals in your health history.

There are three types of metals used in dental crowns: 1. Base metals-which are considered non-precious. 2. Noble metals-which are semi-precious. 3. High noble metals-which are also called precious metals. The base metals are the least expensive and will almost certainly have nickel in them. The second group will have at least 40% of a combination of gold, platinum, and palladium, which are precious metals. The remaining elements will be silver, and small amounts of other metals such as indium, gallium, copper, tin, zinc, and possibly some others. The high noble group will have about 60% of precious metals such as gold and palladium.

You shouldn’t have an allergy problems with the noble and high noble metals. However, if you have any questions about whether you can trust your dentist, which I would if that question wasn’t on your health history, I recommend you ask for the Identalloy certificate of your crown before it is cemented in. If there is any If there is any nickel, cobalt, beryllium, or chromium listed, then I would not accept the dental crown. In that case I would also recommend finding another dentist.

This blog is brought to you by Lafayette Dentist Dr. John Theriot.

You may also be interested in CEREC Crowns.

Sensitive Crown

I’ve received my first dental crown. It has been sensitive for almost a month now. My dentist says there is nothing to worry about. Is she right?

Caleb A. from Indiana


In all likelihood your dentist is right. It is not uncommon for dental crowns to be sensitive for several weeks afterward. However, it should be staying close to the same or getting better. If they get worse, that would be a sign that something is wrong.

You may be interested in learning about our crown in a day service.

This blog is brought to you by Lafayette dentist Dr. John Theriot.

Crown in one day

This may seem like a silly question, but I have a tooth that desperately needs a crown, and I just don’t have time to take off from work. I think I could call in sick for one day and get away with it, but no more than that. I’ve heard it is possible to get a crown in just one day. Is that true?


Yes, you can get a crown in a day. Look for a dental office  in whatever area you live that uses CEREC technology. This enables the dentist to mill the crown right there in the office. There is no need to send anything out to a lab and make you come in for any follow up appointments. Hopefully this will help you get the dental care you need, without worrying about losing your job.

Good luck.

This blog is sponsored by Lafayette Dentist Dr. John Theriot.

What type of crown is the best?

I have had a silver filling on a back molar for over 30 years. Just recently the left, bottom section has cracked. My dentist says that I need a crown. I’m trying to decide between, CEREC, all-porcelain, gold, or porcelain-fused-to-gold. I don’t know much about the pros or cons or which is best for my situation. I’ve heard that CEREC crowns are very unlikely to break. I did seek another opinion and that dentist recommended a gold crown.

What concerns me most is the amount of healthy tooth that will need to be removed. Will that damage the other teeth around the molar? Also, do you know how long the crown will last? The dentist that I went to for a second opinion said that a gold crown will last for over 20 years, while porcelain is between 10 and 15 years or so. I guess I’m leaning toward the CEREC since it only takes one day. Also, if I choose CEREC I won’t need a temporary crown.

– Elizabeth from Georgia


When a crown is being placed on a molar that is not visible when you’re talking or laughing, then appearance may not be an issue. This means that the gold crown will hold up the best over time and requires the least amount of tooth reduction. It is also the least obtrusive on the surrounding teeth and it is the strongest of all the crowns you have mentioned.

If appearance is a priority to you, than all-porcelain crowns are the most natural-looking. They may be the least strong but if the tooth is visible, it looks the best. Porcelain-fused-to-gold looks nice too but does require more removal of your tooth. This is due to the fit of the porcelain which doesn’t fit like all gold does. Any crown that contains porcelain may be abrasive to other teeth and may cause them to wear down.

I hope this information is helpful in your decision making process.

This post is sponsored by Lafayette dentist Theriot Family Dental Care.

Related links: crown in a day

Sensitivity to CEREC crown


A few months ago I was having issues with my tooth. It was very sensitive to temperature and pressure. My dentist recommended a CEREC crown to fix the tooth. I had it done and was impressed with the technology and the process. But after a few days the pain from hot and cold and pressure was still there and got to be too much. My dentist said he would ease the crown which helped a little bit after he did that. I was told a root canal wasn’t needed and to wait it out for another eight weeks or so. The pain never went away and over time it spread into my jaw, radiating in the tooth next to it. The excruciating pain went on for a couple weeks, than it seems the last few days the sensitivity is gone. I can eat normally and the temperature of food doesn’t bother it nearly as bad and sometimes not at all. Maybe I really did need to just wait it out. Do you know what has happened? Is it part of the CEREC technology?

– Tommy in Vermont


I think it is time to have an x-ray of the tooth taken by another dentist.

The CEREC crown is a great option under the right circumstance. Typically when a tooth shows sensitivity to hot and cold it is due to an irritation. A crown placed would add to the irritation of the tooth. When a tooth is sensitive as you have explained and also needs a crown, first thing to do is remove the decay and make sure that a root canal treatment is not required.

What may have happened is that the pulp inside your tooth has died and is no longer sensitive. Usually when a tooth is hurting or is extremely sensitive it is a good indicator of an infection. Just because your pain has gone away doesn’t mean that the infection is gone.

Sounds like it’s time for a second opinion from another dentist.

Best of luck.

This post is sponsored by Lafayette dentist Theriot Family Dental Care.

Is a crown the right treatment?

Have you heard of placing a crown on a tooth that does not require a root canal?

Many months ago, the porcelain broke off of the crown on one of my back molars. I think it was due to the fact that I was unconsciously grinding my teeth. The tooth now appears black in color. When I discussed my concern with my dentist, he didn’t seem at all concerned. I was told that the issue was more cosmetic but was still safe and would still function properly.

Any insight you may have is appreciated.

– David in Missouri


If your tooth is in danger of breaking, then a dental crown is commonly placed to restore it. Even if your tooth does not require a root canal treatment. The link between the root canal and the crown is due to the fact that a tooth with a root canal is more prone to breaking. So that is why a crown often times accompanies a root canal.

In regard to the chipping of the porcelain, this sounds like the laboratory may be at fault. If your particular crown is constructed of a metal framework underneath the crown, you should be okay. You will not have to replace the crown because the metal should protect your molar.

I hope this information was helpful.

This post is sponsored by Lafayette dentist Theriot Family Dental Care.

Related posts: CEREC Crown, Emergency Dentist

Crowns keep coming off!

Have you heard of dental crowns that keep coming off? It seems that within a week or two of my husband getting the crowns re-cemented, they keep coming off. The dentist keeps saying that there is nothing more that can be done. Do you know if it is the glue that is being used or what could possibly be causing this to happen?

– Lynn in New Mexico

Dear Lynn,

I would highly recommend that you get another opinion since it should not be that difficult to get a crown to stay in place. When a crown is done correctly, it is rare that it would fall off and need to be reapplied.

Most likely, the cause of the problem is in the initial tooth preparation phase. If the tooth becomes too tapered, the dentist may run into problems. I would recommend an experienced cosmetic dentist that is familiar with appropriate bonding technology. The bonding agents used today should be able to correct this issue for your husband. You should not have to be dealing with this problem. Good luck in finding a cosmetic dentist that can take care of it once and for all.

This post is sponsored by Lafayette dentist Theriot Family Dental Care.

Links: emergency dentist; CEREC crowns

Have I been overtreated?


I wanted to have my teeth whitened and my dentist did dental bonding on my front teeth. I just moved to a new area and my bonding has already chipped. My new dentist said that I need to have bleaching done inside my teeth because they are stained from the interior. Or he said porcelain crowns are a possibility. I’m confused and was wondering if I have any other options?

– Sarah in Wyoming


It sounds as if your dentist may not be the most informed on cosmetic dentistry practices. Cosmetic dentistry truly is an art and it takes an expert. I advise you to search for a qualified cosmetic dentist. If you need to drive a couple hours, it will be worth it in the long run to have it done correctly.

It is hard for me to provide recommendations based on what you have described. Ideally, I would recommend scheduling a consultation with a cosmetic dentist that will be able to make a recommendation first hand. A question for you, do you have root canal treatments on these teeth that were bonded? If the color seems to be the only issue, a dental crown would not be the recommended treatment plant. This is because for a crown, your teeth needs to be ground down which is not necessary to correct the color. You don’t want to have your teeth ground down if it is not absolutely essential. In regard to internal teeth bleaching, this is a big clue that your dentist is not familiar with cosmetic dentistry. Bleaching whitens the outside of your teeth, not the inside.

Depending on your specific situation, teeth bleaching or porcelain veneers would be the way to go. I hope this answers your questions. Anything other than this, would make me suspect that the dentist is over-treating you.

Good luck.

This post is sponsored by Lafayette dentist Theriot Family Dental Care.