Again, always perform thorough research before any interview. The more informed you appear in all things related to your field, the more successful your interview will be. Appearances are everything and are a reflection of your professionalism. For example, approximately 8% of all medical malpractice trials involve dentists. The largest number of medical malpractice claims were issued for private practices, where the most commonly reported allegation was a failure to diagnose.
There are a wide variety of other statistics surrounding this, which is why Colorado University School of Dental Medicine states on their website, "The School of Dental Medicine will provide contemporary educational programs that prepare general dentists and dental specialists with the knowledge, skills, and values to practice dentistry as critical thinkers and lifelong learners, dedicated to fulfilling the public's trust."
Educate yourself on these issues and statistics, and express how you look forward to your education at university to help you more effectively navigate this nuanced terrain.