I concur with EcoRI: the ADEA's official guide was a huge help in my application process. As far as GPA goes, the low for my incoming class was 2.98, although I suspect that belonged to the child of an alum.... he made a comment to that effect this fall). Our class incoming average was 3.45 (or something close to that; @ Ohio State), and most people were at or above that - and a handful were slightly below (obviously... that's how averages work - lol) There are a lot of cases of folks with lower GPAs who are really dedicated to dentistry (evidenced through volunteer work, office observations, involvement with dentistry, etc) getting in.
That said, if you're having trouble in gen chem 2, you should probably seriously re-evaluate your study schedule. When you study, are you actually concentrating and focused? Do you read the text before the lecture? Do all the homework, and not the night before? Go to the help sessions? Organic WILL be harder, so it's good to develop quality habits now. Lots of people claim they're "studying" when they're really half listening to music/TV, chatting online, allowing themselves to be in a place full of distractions, etc. I suggest the library or other study room not filled with all of your stuff (which equal distractions). I thought I worked hard in undergrad (i was a bio/chem major) but it's nothing compared to dental school. I study at least 3 hrs a night (after 8 hrs at school), and more on weekends, and try to go out at least one night a week. Think about what you do in all your time outside of class. You could EASILY work in an extra hour per day to study chemistry. Use the tutor if you don't understand concepts, or talk to the professor. Ask past students how they dealt with the prof.
In the end dental schools won't ask your opinion of the prof for the class (or even what you learned)... they just want the grade.
Final thought: college IS NOT about who's the most talented... it's simply about who works the hardest and the smartest!!! You CAN do well in your science classes and you WILL get into dental school and be a great dentist IF you learn to manage your time carefully and really apply yourself.
GOOD LUCK!!!!!!!!!!
