On the Guardisil shot's website they only list vaginal, vulvar and cervical cancer as cancers caused by
HPV. I hope to see oral cancer on that list one day.
I had my daughter immunized with the Guardisil shot about 3 years ago. I seem to remember she was given the doses every 3 months. Now the website says, the second dose is given 2 months after the first one and the third dose 6 months later.
http://www.gardasil.com/