@Guru Zeb : I think you're missing the point, the problem isn't to avoid possible transmission -oral sex- but to treat the source -HPV-.
Had you searched a bit more about HPV, then you would know contact of almost any type of contact with another human being is a potential source of transmission. Oral sex isn't more risky than anything else we're doing in our daily life.
I see nothing more than basic fearmongering here, keep the people sacred and they'll accept anything. Besides, where does the stupid idea life can be safe come from ?
It isn't, never was and never will be.
In sum one can say that sex increases the risk of cancer induced by aforementioned virus.
Eros and Thanatos, sex and death combined. That's an imagery that has been used for a quite a while