This is how one of D3 answered my question about chairs...
Regarding enough chairs and patients. Yes, you'll have enough of both to be able to graduate in a timely manner. That should not be a problem. Plus, even if a chair isnt available for a given session, you can speak with the clinical coordinator and if its a situation where you have to see the patient, they will find a way for you to see the patient. As far as the patients are concerned, its not the number of patients that is a problem...rather, its finding patients that have the requirements you are looking for. For instance, I had some issues finding a complete denture patient. But, you can request this and be put on a waiting list...or a classmate that has an extra case can transfer the patient to you. Therefore, you'll get it one way or another. I actually had so many patients on my list that I didnt even have a chance to see about 25% of them because I was too busy with the others. Having said all that, you still need to take initiative to get an appointment or find patients that fulfill your needs. The school will meet you half way, but you need to make the effort as well. If that happens, you'll be fine.