My best mate and i were to go diving lately but the same morning he accidently knocked one of his teeth out and had to go to the dentists.
This last one told him that it was out of question that he would dive the same day. Why did he say that?
wouldn't it have something to do with an anaesthesia ? it's the only reason i could see, or maybe freshly input fillings wouldn't resist water pressure, i don't know realy
i was thinking of someone who would have new teeth fit in and who'd need to wait after the dentist put them in for them to be solidely fixed in so not letting the person bite the air tube.... just a try
BARODONTALGIA:
Tooth pain during diving may be due to tiny pockets of air within your dental work. During descent, the air pocket becomes a "relative vacuum," creating pain. Pain during ascent means that air has filtered into the space, and pressure is building up. Sometimes this pressure can actually make a crown break or fall off.
The pain can occur under crowns, caps, veneers, fillings, or root canals. Active infection at the roots of a tooth can also be affected by pressure changes.
Damage to dental restorations is more common in divers using Heliox, because the helium more quickly enters these spaces when you're at depth, then expands as you ascend.
If you get tooth pain on diving, tap on your teeth with a finger until you identify the "problem tooth." Then see your dentist.
geez i have already dived after a dentist visit but didn't know about all this at all. Lucky all went fine apparently.Now i'll know and will try and avoid to plan a visit the days i am to dive
that's something very interesting to know, i wouldn't of ever thought of it or guessed, any other things like this i should know to avoid bad surprises?
Yet another amazing fact I knew nothing about. I'm sure learning a lot tonight and don't regret signing up on this forum. I knew that i did ignore a lot but this is just insane!
i've heard of this diving and dentist uncompatibilty before. it what i read it had something to do with the glue they use.The pressure makes newly fixed teeth pop out or something similar.
why does the dentist say no! 
just a try
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