Student loans can be intimidating and taking on that much debt may not be a great decision for everyone. You need to determine what your own personal goals are. I ended up graduating from an expensive school and owing around 450k in debt, but going to that school, I believe, helped me achieve my dream residency. If you think you want to work in the public health/ academia settings in dentistry which typically don't pay as well, then I would advise avoiding as much debt as possible. Obviously with a specialty like OMFS which pays better you should be less concerned about the cost of tuition and more about making connections with the referring dentists who you go to school with.
You also have to think about the possibility limiting your application net too narrow and not getting into dental school. If you have to reapply a year later, that means a year's loss of wages from working as a dentist on the other side. It really comes down to personal preference and level of comfort with carrying that kind of debt, but dentists do it all the time. Either way I would apply to as many schools as possible (regardless of tuition costs) and see what happens with interviews. I believe Columbia, UPenn and NYU are all excellent schools in my opinion.