First Day Back - baby teeth and those who build up plaque more than others

First day back from my "Pregnancy leave" haha
I felt so frazzled because it felt like ages since I'd stepped inside that clinic even thought it's only been 2 weeks!
Good thing I started out easy with a 1A. I actually learned a lot. Everytime I look into a child's mouth it's like decoding a puzzle. But I kept my head about me and tried to remember what I learned about eruption dates. I did good with the central incisors but I botched the 6 year old molars. The dentist came back to check on sealants for me and I told him to look at both of her molars... He looked at me funny and said, just her 6 year old molars right?
... uh yeah.
So I guess that's something I need to review - eruption dates.

I am also frustrated that I can't explain to my patients why they have tons of plaque and calculus even though they brush and floss everyday. The only thing I can come up with is that "some people build up plaque more than others because they have more calcium and phosphorous in their saliva." Yeah, this may be true but HOW do they keep it under control? If I were in that chair I would be super frustrated. Maybe because I am compulsive about being rewarded for my hard work but my class 5 patient didn't like me telling her she had lots of plaque.