I think it’s a little late in the cycle at this point. I’d focus on getting a great DAT score, shadowing different specialties/volunteering, and having everything organized (personal statement, letters of rec, etc) to apply next cycle. If you apply early, you’ll have more schools to choose from than if you applied today.
When I interviewed a few weeks ago, I thought I’d be the “old” person since I’m 5 years out of college. To my surprise, no one even cared or could tell I was older, and there were so many others who were 2+ years out of college. Everyone’s on their own unique path to become a dentist—focus on yours and you’ll be fine! Plus, a 2 year gap really is nothing when you look at the grand scheme of things.