Hi Kuzumi Tiger, generally, you wont be able to do dentistry/medicine/law in Canada without being a permanent resident/citizen. Well, it IS possible, but just not likely, because most canadian universities dont accept international students into these programs and the others will set an extremely tight quota, say, 7 slots for international students (U of T, Medicine). So even Canadian prospective med students search for opportunities elsewhere, eg. UK, Australia, USA, Ireland etc.
Also, you will need to complete an undergraduate degree beforehand, i assume you know that.
And for fees, it is, of course, more expensive, although it is already expensive in Malaysia for a Dentistry/Med degree.

Anyway, i wish you all the best in your future endeavors. Though not that straight forward and full of doubts if you wish to do Dentistry here, otherwise you wont regret it, its beautiful here and prospect to get a PR status (if you wish to), is pretty good!

I was in the same dilemma, really wanted to live in Canada too!
Ever thought of doing an undergraduate degree in Canada first, and then go for graduate dentistry programs? It's a pretty long winding road though. Or do dentistry somewhere else, and try working in Canada after that. And for high tuition fees, well i think if you know you want dentistry and you can afford it, although it IS really expensive, go for it! long term investment  mah . If you can't, then consider JPA loan?