ItGavinC is right. I have repeated several classes and it brought my AADSAS gpa down significantly. Take hope in knowing that some schools look deeper into the application before they give you the ax. I have a gpa slightly lower than average and my DAT score was only 18/18, but I have received two interviews already and I will be meeting this next week with two other dental schools in regional interviews. So there is hope! Take comfort in that. Good luck!