In Quebec, I am not able to get on my Canadian husband's health insurance even though we are married. His current insurance plan with his work requires spouses be on the provincial plan for at least three months before they can go on the company's health insurance coverage, and I can't get on the provincial plan until I am a permanent resident.
My coverage was similar. I couldn't add my husband to my benefits plan (dental and medical) until he had OHIP. And he obviously couldn't get OHIP until he was a PR and had lived here for three months. This made sense to me because my benefits plan at work builds on what OHIP provides.
Anyway, all that's in the past and he's living it up now.

He went to the dentist the other day and only had to pay $30 of a $300 bill.