VETSCOPE

I have a male Maine Coon that's a little over 6 months old. In late March I was planning on getting him neutered since he had become half a year old, but at the health check, in early March we were told it was too early because his permanent teeth hadn't grown in yet. We had our older cat - a female Norwegian Forest Cat - neutered when she was 8 months and were told that it was a little late. I've heard that Maine Coons take longer to mature, so do you think it won't be too late even if we wait for the teeth to grow in?