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Root Canal FAQs

K

Kings20

Member
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Dec 12, 2008
Messages
72
Pain after root canal with temporary crown

So I had a root canal last Tuesday and they put a temporary crown on it. The temp crown was made from plastic I think it feels weird but otherwise ok. They told me not to eat on that side so I haven't but I notice every once in a while when I bite down I get pain in that tooth. Is this normal and will it go away once the permanent crown goes on?

Also since I'm kind of nervous about the crown coming off I haven't been brushing extremely well on that tooth and I am nervous it's gonna mess up my root canal.
 
Gordon

Gordon

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Re: Post root canal

I hate lazy endodontists who don't tell patients this kind of stuff :(

Basically with all the guddling about in the canals there is always a little bit of inflammation at the top of the root after a root canal. It's inevitably going to be tender to bite on for a few days and is perfectly normal.

Brushing your teeth or not won't make any difference to the success or failure of the root canal, but poor brushing will make it really difficult to get a nice new permanent crown on there, so get in there with the brush!
 
K

Kings20

Member
Joined
Dec 12, 2008
Messages
72
Ongoing pain/sensitivity after permanent crown

Hi So I just got the permanent crown put on the tooth, I was wondering if it's normal to feel some pain/sensitivity and for how long? They were digging pretty good with floss to remove extra cement so that could be why. I feel a tiny bit of pain if I bite down on the tooth so I'm not gonna eat on that side for at least a day.
 
Gordon

Gordon

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Yes, that would be fairly normal. Try not to keep "testing" it, otherwise it'll take longer to get better. (This is far easier said than done though!!!).
 
carole

carole

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Jan 5, 2012
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WHAT ARE THE CHANCES OF RCT being a success

I have had a RCT done on a back tooth on the bottom, in one treatment before it had thawed out properly it hurt, which I expected, later that night after thaw, still painful still expected.
The day after it got worse and swelling appeared, as I got to the evening it was really painful, throbbing and warm salt water rinses made it worse and my mouth was on fire.
I got antibiotics the next day, I have been on these for 3 nearly 4 days now (5 day course) and all my other teeth are sensitive and hurting now. The swelling has gone down a lot and a lot of the pain has gone. My cheeks feel swollen and my gums on the side of the infection both top and bottom are very sore. I have a very painful bridge at the moment, an old one, on the same side as the infection but on the top. My teeth feel tight as if they are pushed together. My tongue is also very sore down one side.

What are the chances that this RCT will be successful, I am an NHS patient so is it likely I will lose the RCT tooth, and could it be possible that my bridge needs looking at.
I had an untreated abscess for 20 months before having treatment in Sept last year, a removed tooth and a RCT on the abscessed tooth cleared that up. The problem is at the opposite side of my mouth.
Could the fact that I had the other abscess for so long be causing the problems I have now. I read somewhere that if a dental abscess is left untreated, you can get an abscess appear somewhere else in the body.
 
drhirst

drhirst

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Dec 7, 2008
Messages
716
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Welwyn Garden City, UK
Hi Carole,

One does occasionally read suggestions that abscesses in the mouth can eventually cause abscesses in the brain which would have serious consequences. However, the chances of this happening are extremely remote... So relax this isn't happening to you.

We will have to keep our fingers crossed that the root canal settles down.

It is depressing when one dental problem follows on from another but hopefully, this bad period will pass.

Best wishes

Lincoln
 
carole

carole

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I just thought I would update this, so anybody that hasn't had a root canal need not worry, I feel very good no pain all the swelling has gone and my teeth have stopped aching now. Whewwwwwwwwww!! what a difference a day makes, thank goodness.

So I am giving myself some of these :jump::jump::jump::jump::jump::jump::jump::jump::jump::jump::jump::jump::jump::jump::jump:
 
A

Anxioustom

Junior member
Joined
Feb 26, 2012
Messages
4
Had a root canal done, in pain

Hi guys,

Certainly getting over the fear of the dentist now having had another root canal done on Thursday. Now it's 2 days after the root canal and I'm getting a throbbing pain above the tooth I had the root canal done on...

Is this normal for after a root canal? The pain is persistant.

Cheers
 
drhirst

drhirst

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Hi,

It is not uncommon. It should subside over the next couple of days. Keep taking the pain killers. If you feel it is not improving get it checked out. Occasionally these situations need antibiotics to resolve them.

Hope things improve fast for you.

Lincoln
 
E

Ellie721

Junior member
Joined
May 17, 2018
Messages
7
Root canal fail?!! Please help!!!

Hello,

I had a really nasty irreversible pulpitis/possible infection for 6 weeks in tooth #31 due to a deep gumline filling. My dentist did part of a root canal to stabilize the tooth 5 days ago, he drilled it, removed nerve/infection, and filled it with medicine and put in a temp filling and told me to come back in a couple of months for him to finish it and hopefully this calms the pain down in the meantime. I will say that the terrible pain I was in before this that I was having that radiated through my jaw and into my neck/ear is gone.

Well, I have a lot of tenderness and pain when I chew on that tooth (yes he told me not to chew on it for at least a week) but sometimes that is hard and food gets back to that area of my mouth, but I am also having some sensitivity to cold or hot fluids (not anything like I was prior). Did it fail? It is normal to still have minor/slight sensitivity to temperatures AND tenderness/pain when chewing this soon after a partial root canal? :hmm:

I have gone back to the dentist so much due to my anxiety issues and bite issues (my TMJ is horrible on the other side with all the stress I'm going through) so I am really embarrassed to call my dentist and ask-- I am sure he is sick of me.

Please help, I am panicking that it failed. :cry:
 
drhirst

drhirst

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Welwyn Garden City, UK
Hi Ellie721
It can take a while for these things to settle so I would not worry too much. The treatment has not failed because it has not been completed yet. If things are getting more tender rather than less, then I would let your dentist know, as he or she may want to bring forward your appointment to finish the treatment.
Best of luck

Lincoln
 
P

Pearly77

Junior member
Joined
Feb 5, 2020
Messages
15
Location
Veronica
Root canals just don't work on me

Is this possible? Dentists, have you ever had a patient that they didn’t work on?

I have had two root canals in the past — both on teeth that were never infected but had old fillings too close to the nerve. Upper left—premolar and canine. Both root canals never settled and ended up needing apico s.

Last week I had a new crown placed on my #30. It doesn’t seem to be settling and Im worried it’s heading into that root canal territory. But I’m also terrified that it’ll be another situation when the root canal just won’t work.

Am i crazy? Or is this a real possibility?
 
Gordon

Gordon

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This is going to be a long answer, just what I need on a Saturday morning :)

A root canal is always a slight compromise, it's completely impossible to remove all of any infected material from every single root canal, some canals have little accessory branches from them and others have tight kinks and curves in them which our files and chemicals simply can't access.

Other canals have a sort of delta at the apex rather than a single large (relatively!) opening where the pulp enters.
Even with the best technique there are always going to be a few small amounts of bacteria able to colonise these areas.
There is also the question of the seal at the mouth end of the canal, a slightly compromised final restoration of the tooth can allow new bacteria into the canals and away it all goes again :(

HOWEVER, the idea behind root treatment is to reduce the bacterial load to such an extent that the host's own defences can mop up any bacteria which get out into the space between the tooth and the bone.
There are 2 things which can mess this up, 1; if the bacteria are particularly aggressive and reproduce quickly enough to overcome the host response and 2; if the host response is a bit compromised so the bacteria don't get killed off quickly enough. Or more likely a mixture of the two.

So that's a long way of saying that you're not crazy, but you also can't assume that every single root canal on all your teeth will be the same :)
 
C

CuriousPoster

Junior member
Joined
Mar 13, 2021
Messages
5
Location
England
Is my tooth ready for a crown?

Hello all,

First time poster here and seeking some advice. (Professional, if possible!)

I had root canal treatment (RCT) on my lefthand side, bottom first molar in September 2020. Prior to this, the tooth had a very significant filling and had always caused me problems. In the end, it was incredibly sensitive to anything that wasn't the usual temperature of my mouth, therefore I consulted with my dentist and a root canal was recommended.

The treatment was carried out over a couple of appointments. I got the impression throughout things hadn't gone too smoothly and the tooth was 'difficult' to work on, just from the vibes I was getting throughout the appointments. (Appointments overrunning, dentist looking flustered at times, sealing a bleed in the tooth shut with a heated up drillbit (????), me experiencing some pain from what I believe was the dentist's accidental lack of concentration during one moment and drilling too deeply etc.) Nevertheless, when all was said and done, x rays were done and I was told the treatment was a success and I was sent on my way.

I can confirm that, broadly speaking, the tooth has been considerably better to live with since. The original pain that I had has completely gone. I can chew on the tooth with no real problems. However, ever since the treatment was completed (as in, ever since day one), I've always still had some sensation in the tooth if I push against the inside wall of the tooth with my tongue or tap the tooth. This surprised me, since I understood following RCT, you should never feel anything whatsoever and anything otherwise suggests there is a problem.

Anyway, my dentist had said to me back in September 2020, to call up in the new year when they would be resuming routine appointments and I could have a crown fitted. So, I attended a check up appointment last week, the dentist acknowledged that I still had some discomfort in the tooth when it's prodded, but says that this can be normal in some instances, and that it was okay to go ahead with the process of getting a crown sorted if x rays came back okay - which they did.

I'm now booked in for my first appointment this coming Friday and I've foolishly started searching online around the process of having a crown fitted, and what constitutes a failed RCT. I've now worried myself sick that the RCT wasn't a success and the crown is going to be a bad idea.

So, I guess why I'm posting, is to ask if some sensation in a treated tooth can still be possible but not necessarily indicative of there being a problem, as my dentist has suggested? My friend also works as a dental assistant and has said to me that this isn't uncommon, and to to ahead with the crown.

As I've said, it's not what I'd describe as painful, but more a sensation and some slight sensitivity when prodded, almost like that the inner wall of the tooth is weakened or damaged perhaps.

Anyway, I throw it out to you, the dental gods, and will see what you say!

Thanks in advance.

Regards,

Daniel
 
Niall Neeson

Niall Neeson

Well-known member
Verified dentist
Joined
Apr 18, 2019
Messages
166
Location
Ireland
Hi CuriousPoster,

To explain about the feeling you get, basically the tooth has 2 nerves. The ‘hot or cold’ nerve is inside the tooth called the pulp. This is the nerve that was inflamed with the original toothache that led to the root canal initially. This area has been cleaned, disinfected and sealed in with the root canal treatment.

The second nerve surrounds the tooth and is in what’s called the periodontal ligament. This is the nerve that allows us to pick out a fishbone or a hair in our food. It picks up on pressure. This ligament is still alive and will function.

So your root treated tooth will not (or certainly should not!) feel hot or cold, but it can still feel pressure.

Admittedly, we prefer when things settle down 100% and there are no symptoms whatsoever before proceeding with someone investing in a crown but it sounds like there’s still a good argument to proceed.

At the end of the day, when working with teeth and the human body, nothing is guaranteed. We are essentially working on probability and weighing up the risks and benefits.

To me, it sounds like the benefit of protecting a weakened root treated tooth with crown, probably outweighs the risk (over time, root treated molars that are not crowned are much more likely to break and require removal than crowned root-treated teeth). But, ultimately that is a decision that only you can make as it’s your money.

One final thing, I find that lingering issues like this can sometimes relate to clenching or grinding the teeth, or unhelpful forces being applied to certain areas when the bite is functioning. If you think any of this could be relents to you maybe just mention it to your dentist as they might be able to protect it with a splint for example.

I should clarify that obviously I have not assessed the condition of your tooth so cannot give an authoritative professional opinion on your case specifically and the suitability for a crown. I hope that this information is helpful nonetheless.

Niall
 
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