yes, those questions were supremely helpful. you will be asked ~35 questions in about 45 minutes, so you should definitely practice answering all of those questions on the predental website rapidly and succinctly. I had my parents ask me each question several times for practice and it helped a LOT. But also try and keep things conversational during your interview. And don't be nervous - the faculty at LSU are some of the nicest people I've ever met. Nothing like southern hospitality!
good luck and let me know if you have any other questions!