Not knowing what this book really offered, I purchased this before my Canadian dental school interviews. Overall, this book says the same thing as articles you can easily find on the internet (ie, what to wear, what to find out about schools before going there for your interview, how to interview dentists about the profession and practice with a friend etc), absolutely no exclusive insight as to what the interviews are really like. This would have been more helpful if you don't have an internet connection...
Most Canadian dental school interviews are in some sort of CDA format, and this book is completely useless for that. This is more suited, I feel, to the traditional interviews that still go on in Canada (at McGill, for example)or dental school interviews in the US.
Overall, I feel like my money could have been better spent, and make sure you know that this is NOT a CDA-structured interview guide before you purchase.