Posted By: jill_v long term effect on teeth from radiation - 03-09-2006 04:13 PM
Hi everyone!
It's been 1 yr & 8 mths since radiation & despite being a bit sensitive to sweet stuff,my teeth look & feel fine.
I've had flouride application about every 4 months & was wondering if radiation can show any effects on the teeth in the longer term?
During surgery they removed gum & teeth(about3-4) on the lower end of the right side.Can they do implants without any gums ?
My RO even mentioned not to get any teeth extracted until after 2 yrs from radiation.Does anyone know the reason?
Posted By: Marica Re: long term effect on teeth from radiation - 03-13-2006 09:03 PM
Jill
My Husband is 3 years out and still having issues with his teeth....most of them have been capped. As time went by his gums eroded quite substantially... I hope some of the othere will be able to answer your questiom in more detail...Jerry is a dentist and very giving of his time and experience.
Marica
Posted By: wilckdds Re: long term effect on teeth from radiation - 03-13-2006 10:58 PM
Hi Jill,

First of all congratulations on your success of 1 year and 8 months. Most of the information that I have regarding dentistry after radiation has come from being a member of this forum. Basic dentistry is another situation and one that I am very familiar with.

First some basics. The amount of gum tissue that you have has no bearing on whether an implant can be placed. Even though you may have had some gum tissue removed with the extraction of your teeth, you do have gum tissue. What you need for successful implants is sufficient bone to place the implant into. This is best determined by x-rays. In the upper arch (you don't mention if you had extractions in the upper or lower) implants may be a little more difficult as the sinuses can make placement difficult as there may be insufficient bone available.

Radiation complicates the siruation due to osteoradionecrosis (ORN) which is best described below:

Osteoradionecrosis...bone that has received doses of radiation may lack the ability to repair itself after trauma. Radiation destroys the blood vessels in the area causing a reduction of circulation to the area of oxygen and other nutrients. This then will prevent normal healing in that area if the bone is injured.

Hyperbaric oxygen to the area will stimulate new blood vessel growth and therefore stimulate bone healing.

Without hyperbaric oxygen, placement of an implant can result in bone that won't heal.

This is a good article: http://www.virginiamason.org/dbHyperbaricOxygen/sec181033.htm

You can search this site and the internet using the words "osteoradionecrosis" and "hyperbaric oxygen" and get more information than you can imagine.

Hope this has been helpful. Please don't hesitate to ask questions here or through a private message and I will try to help. If I don't know the answer, someone else here will.

Jerry
Posted By: minniea Re: long term effect on teeth from radiation - 03-13-2006 11:37 PM
Hi Jill,
I go on the 23rd of this month to FINALLY SCHEDULE MY IMPLANTS. We thought I would have them by now but such a drawn out process. The surgery I had, using bone from the leg to replace half my lower jawbone, was done specifically so I could have implants. I have two friends in the area that have had implants in their radiated jaws and they are THRILLED with them. If you lack gum tissue, they will just make the post of the implant a bit taller. Even if you do not have enough initial bone, they have procedures that can build up the bone. Joanna on this site has helped me the most about implants, she had them done and is very happy with them.
You will need to do 30 "dives" of hyperbaric oxygen treatment.
Let us know what you find out.
Minnie
Posted By: Gary Re: long term effect on teeth from radiation - 03-16-2006 09:27 AM
My RO told me that ORN is a lifelong issue. I kept all of my teeth. I used dental trays with prescription flouride every week for years and get my teeth cleaned every 3 months. There was a slight receding of the gums but they remain healthy. I have had a few minor filing repairs and one porelain filing in a molar in the radiation field. The dentist tells me my teeth and gums are in better shape than many of his other patients. I would still need HBO for any extractions, especially in the radiation field (or any area receiving over 62 cGy). I had IMRT and still use Biotene. I also use woven floss which is much easier on the gums.
Posted By: xynobix Re: long term effect on teeth from radiation - 03-16-2006 07:20 PM
i'm only about 6 months out from radiation and 3 from surgery but so far everything is cool. A dentist I saw at UCSF told me I'm 8 times as likely as a normal person to have gum disease and other dental problems now.
Posted By: Gary Re: long term effect on teeth from radiation - 03-16-2006 07:38 PM
A so called dental oncologist also at UCSF advised me to have ALL of teeth pulled, which I flatly refused to do. Three years later I still have all of them and NO gum disease.

I did go the distance with dental hygiene however:
1.
Posted By: Gary Re: long term effect on teeth from radiation - 03-16-2006 08:04 PM
Sorry my time elasped during the edit...

1. I had all of dental work, even minor stuff done prior to Tx.
2. I had dental trays made and got a prescription flouride (same stuff they use). I did flouride treatments at home several times a week.
3. I use a "Water Pik" and also used a portable battery operated one on the road.
4. I use a "Perio-Aid" - A plastic curved tooth pick holder to clean the sides of the teeth that the floss can't reach.
5. I have my teeth cleaned 4 times a year (under the gums with ultrasonics) and also an industrial strength flouride treatment.
6. I used and still use Biotene toothpaste and used the mouthwash as well.

My dentist informs me that my gums and teeth are healthier than most of his regular patients.

It look a lot of work to do the maintenance when I was wracked out during the first 18 monthes post Tx but it was well worth it.

Because of the IMRT I have most of my salivary function back and it's much easier now.
Posted By: jill_v Re: long term effect on teeth from radiation - 03-18-2006 04:12 PM
thank you all for your responses!I never knew that ORN might be a gradual process & may take years to appear as all this time i've been thinking that since the dental nightmares didn't pop up now,it's unlikely to trouble along the road!

Jerry...i found your post very informative...hyperbaric oxygen is something my dental surgeon never bothered to mention..he just said a big no to implants.I just need to know:
1)do they need to do an x-ray to determine the bone damage before a tooth extraction(radiated site) after 1.8 yrs post radiation.
(as i was under the assumption that the bone would have healed itself after all this time).

2)How do i find out if i have ORN?Are there any symptoms to look out for?
(my teeth seem fine at the moment but i think i need to be proactive to avoid dental issues in the future).

3)Are there any negative issues related to the hyperbaric oxygen treatment?
(I'm really surprised as to why, neither my RO nor my dentist have mentioned these treatments to me as not only does it seem beneficial for radiated tissues but might even help with the neck stiffness as a result of dissection).

During surgery the flap they did from the thigh, was lost & after few days they had to do a new one from another part.Just when i thought i was over & done with the operating room,i had to be wheeled in again & ofcourse not to mention the long scar on my thigh..all wasted...& now to find out that the HBO treatments might actually have saved the first flap.sorry to keep on & on but i just feel so mad at the moment.I can't wait for my next follow up with the docs..they have some serious answering to do!!

Gary...thanks alot for reminding me that you simply can't do enough for dental hygiene & maintenance.I think i was taking it for granted a bit & i needed a wake up call.I just need to know what exactly you use for your home flouride treatments.My dentist mentioned that they mix different substances to make the paste & it's not available in the market.
Posted By: Brian Hill Re: long term effect on teeth from radiation - 03-18-2006 09:52 PM
1. The loss of micro-vascularization in the bone to radiotherapy is permanent, but for brief periods of time, the lack of healing response because of this (important for a vaiety of situations including implant placement) can be overcome with 02 dives in a chamber. This doesn't make new microcapillaries appear, it makes whatever you have left more efficient.

2. If you have ORN you will know. You will have a non healing wound in your mouth.

3. I think there are several people here who can comment on this who have actually been down this path, but there isn't much of a down side to the dives in comparisom to the benefits.

4. It is unlikely that 02 dives are going to help with your neck stiffness.
Posted By: Uptown Re: long term effect on teeth from radiation - 03-22-2006 12:56 AM
Brian,

I hate to hijack the thread but what does help with the neck stiffness and constant cramping. I am really struggling in the radiated areas of my neck, particularly the left side that received the most.

Ed
Posted By: Cathy G Re: long term effect on teeth from radiation - 03-22-2006 09:12 AM
Ed,

There's a recent thread on the General forum (topic: Hi all, almost 3 years) where there was quite a bit of discussion about ongoing neck problems and different people's experiences with physical therapy. Hope that helps.

Cathy
Posted By: hal Re: long term effect on teeth from radiation - 03-22-2006 01:55 PM
Hello,

Has anyone had implants for a full denture in a radiated jaw after HBOT?

Hal
Posted By: Gary Re: long term effect on teeth from radiation - 03-23-2006 03:21 AM
I should mention also that the chance of ORN is about 10% and sometimes even occurs in patients that had all of their teeth pulled.

Jill the stuff I use comes in a can ready to use (just shake well first). It's called Butler 0.9% pH Neutral Flouride Topical Foam. Oral B also makes an equivalent and in more flavors. It only take 5 minutes for a treatment. They are both prescription. In the dentists office they use a 1.8% strength. This stuff is easy to use and won't burn because of being pH netral. Don't use the OTC stuff and tell your dentist to get into the 21st century - he'll have to order it for you.

From a dental perspective you want to avoid, at all costs, having any extractions in the immediate radiation field, particularly the lower jaw. You can NEVER take dental hygiene for granted EVER again!

Others here have gotten successful implants after HBO therapy.

Radiation sometimes kills the flap - at least that's what my H&N surgeon told me so the HBO probably wouldn't have helped. Actually if there are residual cancer cells left behind HBO can actually accelerate their growth.
Posted By: Gail Mac Re: long term effect on teeth from radiation - 03-23-2006 08:21 AM
To add to what Gary has posted -- our dental oncologist (who is an expert in side-effects of HNC radiation) also encourages chewing xylitol gum after eating. It is a known cavity preventative (reduces amount of sugars in the mouth) and the chewing stimulates the production of saliva, again helping tooth health. We use a brand called XyliMax, from Finland, availabel at dentists' offices. Barry has found it better than sipping water or in fact, almost anthing else if his mouth feels a bit dry.

Barry's regime similar to that of Gary, daily flouride trays, cleaning 4x a year, careful daily dental hygiene --flossing, brushing, Biotene products etc., minor "routine" fillings would be OK to have done by Barry's own (good) dentist as our dental oncologist is now comfortable with his skill but any serious work, such as extractions if he cracks a tooth would have to be done by a surgeon experienced in radiation patients and might well involve HBO treatment. They see less than 3% ORN in current HNC patients, possibly because they are mostly getting tomoTherapy and only back of mouth gets much radiation.

Gail
Hello all,
I am 3 months out of radiation and am begining to have some difficulties with my molars on the side that was heavily radiated, in fact I am in agony as we chat and I want these teeth (3) pulled, my dentist says to hold on as long as possible, but they need to go now, pain meds no longer help. I did not have any teeth pulled before radiation treatment, what should I do? What problems will I be looking at? anything has to be better than constant, severe tooth aches?
lenny
Posted By: Gary Re: long term effect on teeth from radiation - 03-23-2006 08:42 PM
I take it that you did have a dental evaluation prior to starting treatment. You can't just have the teeth pulled. You have a very strong risk of ORN if you do that and that could result in losing your jaw bone. You will need HBO therapy first - at least 20 or more "dives".

They should be able to manage the pain. See your MO for that.

I kept all of my teeth and had no problems before, during or after (and I had the total amount of radiation w/boost).

You should get an immediate consult with your ENT or head & neck surgeon to determine what exactly is the source of the pain.

The reason they recommend pulling teeth has less to do with pain as much as it does with the stresses put on the teeth from dry mouth and decay and possible future extractions which could have serious complications.

Gail - thanks for the update on the ORN statistics - now I really feel good about my decision to keep my teeth (practically A.M.A. I might add). The key to it, I understand, is to limit the radiation through the teeth to 62.5 Gy or less. I believe that the targeted radiation, IMRT, 3D conformal and Tomo , sparing the salivary glands to a large degree, is the primary reason for the uptick in the numbers.
Posted By: karenng Re: long term effect on teeth from radiation - 03-23-2006 09:52 PM
I second what Gail said about the chewing gum. My dentist also suggests having chewing gum after each meal and in fact, it can make my mouth feel less dry when I have one. I have no particular choice of which brand as long as it is sugar free and the taste is not so 'refreshing'. I don't know how much radiation is done through my teeth but I am glad that I still have 28 teeth with me. I have lost all my wisdom for many years already. Frequent dental check and extra dental hygiene before, during and after treatment are keys to keeping our teeth healthy.

Karen
Posted By: Gail Mac Re: long term effect on teeth from radiation - 03-24-2006 10:16 AM
Gary--

I recall what our denatal oncologist said when we met him prior to Barry's treatment -- "we never pull a tooth without just cause..." -- he said that "in the old days" (his words) "we used to pull lots of teeth before radiation but now we can prepare them better beforehand and also, we have more precise delivery of radiation AND better approaches for improving salivary function after treatment. He is a big fan of amifostine and of Evoxac. Last December he told us he had subitted a paper on radiation effects on oral and dental health to Lancet, but that they had "better print it soon" as things were changing fast enough so that it might soon be out-dated.

I know he told Barry that the tomoTherapy radiation field for his particular treatment plan (he had tonsillar and base-of-tongue, + two nodes) did not significantly impact his anterior oral cavity and only the very back teeth on one side got much radiation (and that not the full 66 Gy dose). Still, he did warn that serious dental work needed to be done by a oral surgeon experienced with radiation patients and might (depending on where in mouth) involve HBO treatment.

The gum he recommends is one of the brands which contain Xylitol and are made especially for dental hygiene. Ask your dentist about this...

Gail
Posted By: Gary Re: long term effect on teeth from radiation - 03-24-2006 03:37 PM
Gail,
I whole heartedly agree with your dental oncologist, but like he says, not all of them are on the same page. Fortunately my regular dentist son, had recently gone to UCLA dental school, had a class on post oral radiation issues and loaned me his textbook. In spite of the UCSF dental oncologist initial recommendation to have ALL of my teeth pulled, later revised to molars only - sent all kinds of flags up! I had my own dental consult and have paid much money, out of pocket, for years for maintaining good dental health wanting to die my own teeth. Both of my parents had false teeth and there was NO WAY I was going there. My teeth are hardly perfect - I have lots of crowns, filings, etc,. but no gum disease (just the normal "long in the tooth" recession for someone my age). Your dental health is also a window into your general health.

I actually suspect the DO at UCSF wanted to use me as a demonstration lab rat for his students (it would have been done in the OR there). Screw them! Not every CCC is perfect - just because you are at one doesn't abdicate being your own advocate.

Many here have mentioned that the MOST DIFFICULT thing of their cancer experience was losing their teeth.

I have plenty of salivary function and my dentist is quite pleased with both my lack of decay and gum health (and plaque buildup). If you have no plaque - you have no saliva. For me, it was the correct choice. Of course if dental hygiene is not on your high priority list then maybe you had better re-think your strategy.

I bought some of the Biotene gum and the package sits up-opened. I haven't been a gum person since I was blowing Bazooka bubbles in my youth.

My RO actually recommended "Jolly Ranchers" (because of the tartness) to stimulate saliva production but those things are VERY high in sugar.

Last week I cut Coke (I won't drink "diet" anything -or anything with sugar substitutes) out of my diet, replacing it with Calistoga either plain or carbonated, unflavored water and other than the sugar and caffeine withdrawals I am over the hump now. I may be able to throttle back to 3 cleanings a year according to my hygenist.

I have already mentioned in other posts the extreme measures (or not so) I took so I won't repeat them here. I will say one thing - it didn't matter how weak or sick I was, I flossed every night, used the Water Pik after each meal and the dental trays w/flouride almost every night. I never once skipped over no matter how difficult it was. The same amount of determination to go PEGless I might add.

Occasionally I have an opportunity to visit Silver Spring, when I go to the FDA headquarters there, maybe Barry, you and I can meet up for dinner next time I am in town.
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