In a letter submitted to me by a student requesting more info on the effects of soda on teeth: "To Whom it May Concern: Hello. My name is LN and I am an 8th grade student in NJ. This year for my science project, I am studying how soda affects teeth. For my research, I was hoping that I would be able to ask a dentist some questions about soda and teeth. I was wondering if you could take a few minutes and answer my questions. I would really appreciate it. My questions are: 1. What is your area of...