Well, if the main reason you want to go into dentistry is to treat that cavity, I guess I wouldn't say no. But I wouldn't say yes either because you are a candidate that does not know how to take care of himself/herself (there are resources to help treat a cavity, even if you cannot afford it, hustle your family to help out if you have to). So yea "indefinitely waitlisted" would be my decision if you were to apply at Grey's Dental school 😛