Niko420:
hi everyone,
i have recently had a few dives where upon ascent i start feeling built up pressure in a tooth, like my tooth and head are going to explode. i cant get rid of it and finally i just suck it up and surface where for about 3 hours im in SERIOUS pain. im freaking out as i went to a dentist and he sees no decay of nerve damage. finally it releases and the pressure releases out the back of the tooth through the sinus, not out of the front, indicating a filling problem...any ideas?
thanks
niko
Hi Niko,
It's not till later in this post that you indicate that the tooth is not filled. Short of there being a fracture within the tooth or a tooth that underwent past trauma, eg. orthodontia, some sort of facial trauma, I would doubt that the tooth is the culprit.
You didnot say but is this an upper tooth? If so, my best guess would be a barodontalgia of maxillary sinus origin. It is also impossible for a presumably healthy tooth to feel a pressure relief "out the back of the tooth through the sinus."
Assuming for a moment that there is some sort of undetected pathology within a tooth, the amount of gas that causes the problem is actually microscopic and you and contained in an exceeding small space. I would seriously doubt that anyone would feel a sudden pressure relief like that. If there was pathology and it extended BEYOND the roots into the bone, then there might be enough volume to be noticed there....HOWEVER, such a volume would also be detectible by your dentist on x-ray.
You in fact state that you feel the pressure release through the sinus and that is perhaps key to solving this problem.
The upper molar teeth and sometimes the bicuspids (and even the cuspid)may protrude into the sinus cavity. In most cases, there is bone between the roots and the sinus but it can be as thin as tissue paper. Any pressure within the sinus can be transmitted to the root tips and stimulate the nerves as they emerge from the affected teeth. When this happens, it can be percieved as tooth or dental pain and you could swear your tooth is hurting.
I have seen this effect in patients who have gotten off and airplane and been in severe pain. By the time they get to the office, there is nothing to be found...no pain, normal responses to pressure, temperature, electrical stimuli and normal x-rays.
Sometimes there is a vague mention of a past cold or allergy some time before the flight.
So, I suspect that it is your sinus and not your teeth that caused the problem. If this fits your symptoms, then you might want to see the ENT to rule out a sinus problem. If you have just gotten over a cold, simply wait until you are no longer congested. Perhaps dive again (carefully)and see if the problem returns. If so, abort the dive and see the ENT next.
Laurence Stein, DDS