honestly, i think you should wait until next year and apply (i only said 'should' so you can def go ahead and apply but it's my opinion).
choosing a career field requires serious considerations and also you need to be able to show them that you are mature and experienced about the choice you're making.
I am pretty sure you behave more mature and properly in real person but from reading your previous posts, it sounds like you are still very immature and not sure of what you're doing / what to do.
It would be hard to get an interview if you are applying late in the cycle (post-dec interviews most likely if there are some) but even then Adcom will definitely see that through.
You're talking about hiding the fact about applying to med schools. We are in health profession field, and honesty and ethics are one of the most important things. I think better way to go is: 1) start doing research for dentistry, 2) start shadowing / working for a dentist during that one year you have (in order to show ADCOM that you have made a serious change to dentistry and you have been exposed to the field to understand what it's like to be in one), 3) Get LORs from professors, please do not use the same LORs that you have used for medical school application since they must at least indicate why you want to become a 'dentist' there somewhere and also get LOR from a dentist that you will be shadowing / working for, 4) start preparing for DAT and do well, 5) apply by June of next year so you can have the maximum chance.
You still havent done any of the things above, which are the things most of pre-dents do. You could still make it this year if you have amazing stats but for the school and for you i would suggest taking a year to really get yourself prepared.
Also, letting us know your oGPA,sGPA, and MCAT score to know your academic background would help people with answering your questions.