UTHSCSA IS a big name in the dental world. So I've been told at many a residency interview (and was granted offers from all I interviewed at, and was preceeded by other graduates from the school - almost a third of the last class went on to post-grad programs and our class is looking to be about the same). Looking at the Penn curriculum, it seems pretty similar to ours, with the exception of the 6 week hospital externship at Penn. We do 2 weeks in our affiliated hospital dentistry clinic, and seeing as the majority of procedures in hospitals are full mouth radiographic surveys and subsequent extractions prior to transplant surgeries (aka clearances) since most hospital clinics are not equipped for comprehensive dental care, I prefer the shorter rotation, but that is just me. And you shouldn't choose a 4-yr school based on 4 weeks anyhow. Just letting you know that SA does open doors in the dental world.