GPA is only one of many factors that go into being a competitive dental applicant. While 3.34 is a little lower than the average enrollee (I've read about 3.5 is now average), there's lots of ways you can become a strong applicant. Most importantly study hard and do well on the DAT, but get a good amount of shadowing/internship hours, get good LOR's, write a solid personal statement, and get involved in other activities/clubs/research projects that interest you.
Having a slightly lower GPA by no means eliminates you from getting into d-school. Everything else that can improve your application is up to you now, so good luck.