I think I went to one of these if were talking about the same thing,
I dont think it helps you get into dental school at all, I mean its just another thing you can add to your extracurriculrs or resume or something, saying you attended it and you have a passion for dentistry. Other than that I dont think it does much
The impressions program I attended was an all day event on a saturday, I'm not sure what exactly youre referring to though