Wiki Plugin - Can you restrict editing of a specific page to a specific or set of specific users?

Can you restrict editing of a specific page to a specific or set of specific users?

I am working on a media database / directory style site. I would like to give specific users rights to edit specific pages from the front end. It looks like wiki mightbe able to do that if it has this feature. I realize that I could create roles that have access but I would like to restrict users to specific entries.