I agree with
@yasc that you should probably retake it. You nailed reading, which is awesome! 17s are considered low average, but I don’t let those scores phase you and retake it in the next 90 days, even if it causes you to apply late. If you feel comfortable with the material, I would just lightly study during the 90 days approaching the test and just put your best effort forward! Your GPA and ECs are great, so a decent DAT score (19-20) should get you into just about any dental school in the country! Best of luck to you!