Let go over the basics about mini implants. The main difference between mini implants and regular implants are the size. Mini implants are a few millimeters wide, and thanks to their small size they can be inserted into areas where regular implants are not an option. They are made of the same Grade 5 titanium alloy than regular sized implants. Grade 5 titanium is excellent for use on dental treatments for its bio-compatibility with both human bone and tissue.