What is your academic average and your total science scores? Also, are you looking just to get into A dental school. In my opinion, it is very hard to say. I would say take the DAT one more time; it can only help you (gives you a lot more options). I know that studying for 3 more months is a pain in the ass (I'm going to have to go through that as well) but I think it is worth it in the end to have scores that you are comfortable with and that you can be confident in. If you need any advice on how to study, etc. just let me know. I got a 21 AA and 21 TS but a 16 on PAT, which is why I'm retaking it.
Cheers