Best thing to do is to go visit the programs and talk to the residents. New residents start July 1, so go a little later or earlier than July to get an accurate picture of what goes on there from the residents.
The only published guide out there is the ASDA guide for post-doc programs.
Implants - I've heard the residents at Baltimore VA do implants galore. As far as rotary, I assume it's becoming more commonplace these days, but just ask the residents or program director.
Definitely contact the programs to learn more about what they do there, or you'll find yourself interviewing at programs that are all oral sugery and no restorative.