Rosana Square Dental Group in (duh) Rosana Square at 119th & Metcalf is GREAT!!
My husband has TERRIBLE teeth (could it be the 10-12 cokes a day???), so he usually has at least 2 crown/root canal type things done a year. We see Dr. Ann (Dr. Brent is good as well - they're a huband & wife team, and her dad originally started the Billingsley & Billingsley practice that became RSDG).
They are very considerate of my husband (no "bad kid" guilt trips) and his concerns which come out of a bunch of BAD work done on him by a prior dentist. They were equally understanding with me & my needle fear when I had to have my first ever filling done. I'm sure if you tell them of your history with numbing, they'll be very careful to take care of you, too. Tell 'em Mark & S. sent 'ya & I bet they'll know exactly who you're talking about!! ;)
S.