Disclosure to partners of past exposures to HPV is opional. Although it seems to make sense, knowing you had HPV will not improve their health or reduce their risk of any important health outcome or help protect their partners. Why not? Because everybody gets genital HPV, and the high risk types like HPV 18 are among the most common types. If your partners have no symptoms, there is nothing they can do -- and the risk they'll have a significant problem from it is very low. Similarly, since their current or future sex partners also will have been exposed and undoubtedly infected with HPV, it won't have any effect on their health. All women should follow standard pap smear recommendations, and that advice -- or the frequency of pap smears -- would be no different based on this knowledge.

If you have an ongoing sexual relationship, there is no point in ceasing sexual contact, or using condoms, with that person. Undoubtedly he has been exposed repeatedly to your infection and future sex will not further raise whatever risk there might be for him. For future new partners, however, it is reasonable to wait either until a repeat pap smear shows that the dysplasia and HPV infection are gone. 

It is true that condoms are not highly effective, but not because HPV can pass through latex, polyurethane, or even natural membrane condoms. It's because there is substantial genital skin contact, and exposure to genital fluids, despite condom use.