Yes, I can tell you about my experience - and you can read about the
ongoing consequences in another thread. I don't want to put you off,
because implants can achieve an excellent result, and if the rest of
your teeth are perfectly healthy, they could well be the only decision.

However, there's almost no information about their long-term survival
rate in the public domain, yet it's become increasingly clear to me
there are still substantial problems.

In my case, I had two Straumann implants placed in 1996 (original teeth

lost due to trauma) and they'd started to fail by 2004.

Straumann not too crazy about these implants.

Implantologists
will tell you that certain bad habits make long-term failure more
likely, but none apply to me. I was young, fit, didn't smoke (never
have), had excellent oral hygiene, and drank in moderation. I had
regular dental checkups, and took scrupulous care of the gum tissue
around the implant. Despite this, my implants still failed after 8
years.

Your natural teeth failed in that area of the mouth as well. My guess
the inderlining issue of your occlusion was not addressed and implants
were simply put it without even telling you that you may still have a
problem.

I initially started noticing a shrinkage of the gum around the implants

and immediately went back to the specialist who did the implants. An
x-ray revealed a small defect in the bone on one side of one the
implants, which was treated with a bone-graft material. However, after
another six months, I started to experience pain when biting, even
though further x-rays did not show any obvious problems. Eventually, I
insisted on the crowns being removed, which revealed that both implants

were in fact loose, necessitating their removal.

SEE the underlining problem was never fixed and most likely you lost
your natural teeth to the same problem.

In fact, it transpired there was substantial bone loss around the
implants, so I'm not quite sure how that didn't show-up on x-ray
(although I think it may have been in front of implants, and a normal
is only 2-dimensional). So much so, that a large bone graft was
required before an attempt could be made to replace the implants.

Would I do it again knowing what I know now? Quite probably, as I had
healthy teeth on either side of where the implants went, and a bridge
was just not an acceptable option to me. However, you need to be aware
that no matter how much you take care of them, implants can still fail
regardless.

There are unknown long term side effects with implants although they
are 95%
successful and although not always preferable by the patient due to
extra surgery the failures
can be corrected either by redoing the procedure after grafting or just
grafting.