Finally after more than 5 miserable years of trying to find a dentist that:
1) Did their own work rather than pawn it off on the assistants.
2) Actually completed a treatment within a single appointment.
3) Used dental gear (laser included) that was manufactured in this century.
4) Topical anesthetic BEFORE jamming in the dull needle.
5) Quality work counts more than quantity.
I did. Having suffered the last 4mo from basically incompetent fools jabbing and grinding away without listening to ME and performing haphazard, shoddy and basically crap work, I found a great dentist / oral surgeon in Ebisu. Speaks English (bonus) , takes Japanese insurance as well as international. And most importantly - really does great work.
I had a upper molar capped as a repair to a repair done by aforesaid crap dentist. It fits perfect and no heat sensitivity at all.
Lower rear molar reconstruction (root canal, hybrid crown, foundation, laser surgery, etc) Done beautifully with a perfect bite restored and no pain!
And lastly, finally a thorough, deep gum cleaning by skill hygienist.
You can PM me for details if you need.