I'm applying this year straight out of Canadian dental school and at the end of the interview season. It is very possible to match as a Canadian applicant from my experience so far, but more difficult. Which programs take/don't take Canadians is also very fluid each year (I received interviews not on this list, but others reached out saying they weren't able to take Canadians for just this year (COVID)).
Although important, especially as a Canadian, there's a misconception that all you need is a good CBSE and rank to get interviews. There's many applicants with 80s and even 90s on the CBS