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Crowned tooth decay

37 replies

WonkyToothy · 25/03/2023 14:23

Had a dental check up/clean this week and all was deemed well by dentist whom I've been attending for almost 2 years. However after I went home I noticed that eating felt strange around the area of a molar which has had crown for over 12 years. No pain but just felt like food was getting caught in that area.

A few days later I went back to the dentist who took a look and quite easily was able to pull the crown off.

On inspection he said that the tooth, which had had root canal treatment many years ago, was decaying. He cleaned it up and replaced the crown, which he says was originally poorly done, and advising that we should see how it holds up but may need to consider removing the tooth and an implant.

I presume that at my check up he should have seen evidence of a deteriorating/cracked crown requiring further investigation? His suggestion that diet/sugar etc is responsible for the decay doesn't quite hold up - is decay possible unless the crown is breached? Also, my general dental health is good - good diet, brushing, dental sticks etc, and I don't have decay elsewhere so it sounds as if the decay is due to a breach in the crown?

It feels as if a sticking plaster has been applied to the problem and I'm wondering how to go forward with this. Do dentists routinely check crowns at check up and do X-rays reveal issues? How will I know if there is not further decay happening in future? (since it seems to have been missed on this occasion). Will a quietly decaying tooth cause any bone issues, issues for surrounding teeth? Is it better to be just done with the tooth and go for an implant?

The dentist seemed to take a very casual approach to these questions when raised and said there was no point in worrying about it and that I had been dealt a poor hand with a badly done crown😒

OP posts:
WonkyToothy · 25/03/2023 17:30

Wellillsayitifnoonelsewill · 25/03/2023 16:11

Why are you so convinced there is bone loss when people have said that’s related to gum disease (not tooth decay)

Have you had radiation therapy on the head or neck area?

Not convinced there is. I was questioning the possibility earlier and posters then provided information to address that concern.

Also said that hopefully dentist would have picked up any loss at last X-ray. He probably wouldn't have proposed implants if he thought this was likely to be an issue.

OP posts:
Wellillsayitifnoonelsewill · 25/03/2023 17:36

WonkyToothy · 25/03/2023 17:30

Not convinced there is. I was questioning the possibility earlier and posters then provided information to address that concern.

Also said that hopefully dentist would have picked up any loss at last X-ray. He probably wouldn't have proposed implants if he thought this was likely to be an issue.

Just you mentioned it again here like you were worried there would be no bone left…

the dentist has removed the decay and rebonded the crown (I missed this on the first read) so this should be sufficient and I’m sure he’ll keep an eye on it

my oh’s Carried on decaying because he didn’t go to the dentist when the crown came off the first time so I wouldn’t use him as a comparison. Xx

Wellillsayitifnoonelsewill · 25/03/2023 17:37

WonkyToothy · 25/03/2023 17:30

Not convinced there is. I was questioning the possibility earlier and posters then provided information to address that concern.

Also said that hopefully dentist would have picked up any loss at last X-ray. He probably wouldn't have proposed implants if he thought this was likely to be an issue.

Sorry I meant you mentioned it again here:

Crowned tooth decay
Wellillsayitifnoonelsewill · 25/03/2023 17:42

CarPoor · 25/03/2023 16:30

The dentist is waiting and seeing because they've removed the decay and recemented the crown. A treatment that will likely work but not necessarily, so you wait and see.

By nature most teeth are heavily broken down when extracted because you don't extract healthy teeth. Root canalled teeth are more brittle, extracting the tooth before the crown comes off won't make the extraction easier if the crown has failed.

yeah i saw that the dentist had removed the decay when I re read the post. Missed it the first time round hence the wait and see comment.

the extraction I’m referring too was bad because half the tooth was missing - it was superglued inside the crown so the dentist had to pretty much dig up for the roots. Luckily she was able to do a full extraction at surgery level but it was more painful than usual

WonkyToothy · 25/03/2023 21:31

CarPoor · 25/03/2023 15:44

Decay under a crown is not always visible without xray, sometimes even just the cement loosens and the crown debonds

Xrays are indicated every 2 yrs, so you weren't at

Decay under a crown happens because of sugar in your diet. Bacteria can work their way under a crown and you therefore can get decay, lifespan is about 10yrs so the fact yours lasted 12 is fairly standard

You had xrays a year ago, bone loss is unlikely to have significantly worsened. The dentist will have checked for pocketing at youe check up. Bone loss and decay are not related, bone loss is related to your periodontal health

The dentist has acted appropriately and done the steps any dentist would do if presented with a debonded crown.

@CarPoor - if the crown is so old and likely to need replacement in the near(ish) future is there any reason to wait to consider an implant? especially since I believe the dentist said there is only about a third of the tooth left?

I’m thinking that it’s not going to get any cheaper and if there’s a chance that the crown may fail maybe just bite the bullet?

OP posts:
RudsyFarmer · 25/03/2023 22:31

Get a second opinion
first. The less work you do on teeth the better in my experience. Sometimes you fuck about with something and make it worse.

RobinHumphries · 26/03/2023 07:30

There is no harm in seeing someone for an implant consultation and seeing what they suggest.
The only other thing to add is no artificial body part lasts for ever. I don’t place implants so I don’t know their average lifespan (used to quote about 30 years) but the longer you wait to have one placed the older you’ll be when it fails

WonkyToothy · 26/03/2023 11:12

That does make sense, I’ll get a consultation.

OP posts:
Deedoo · 09/09/2023 07:01

@WonkyToothy what did you do. I am in a similar position and the endo said if there was a decay then the root canal needs to be done again as decay would have gotten inside the tissues and tooth : I was thinking to remove the tooth now you

Mindymomo · 09/09/2023 08:05

I have a crown next to one of my front teeth, I originally had it done after root canal treatment over 15 years ago. As I’ve gotten older my gums have shrunk and there was a small gap where crown met the gum and dentist said that it shouldn’t be left as it could turn infectious, but dentist said they wouldn’t know the exact state of the remaining tooth stump and surrounding area until they’d remove the crown. Fortunately it was ok, although the stump was completely black, but was assured that was fine and I had another crown fitted.

Deedoo · 09/09/2023 21:57

@Mindymomo did you have pain or decay under the crown

Deedoo · 22/09/2023 18:55

@WonkyToothy did you remove the tooth

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