<p>There are definitely some great dental assisting programs that can help you get a lot of experience (like this one [Dental</a> Assisting - Index](<a href=“http://www.dbc.ca.gov/da_program/index.shtml]Dental”>http://www.dbc.ca.gov/da_program/index.shtml)). Also, working in an office will get you some great references for dental school, and you could even secure a job with them for when you graduate.
Another thing you may need to consider is the fact that getting into any dental school can be difficult, but Harvard may be even more so. Have a backup plan and consider your options. Sites like [Dental</a> Degree Programs: Become a Dentist or Dental Assistant](<a href=“http://dentaldegree.org/]Dental”>http://dentaldegree.org/) can help you with this research.
Good luck with everything!</p>