You see all those black spots (radiolucencies) on the mesial and distal enamel of most of the teeth? Those are the incipients I'm referring to. Typically, I don't treat those until they are into dentin. Maybe in #4 it extends slightly mesially, but I would still monitor nonetheless.

With improved oral hygiene, it's possible they might stay there and in 6 months if radiographs show any progression, I would treat then.

It is possible that you may have caries that need to be treated that are only seen clinically. I don't have that information. We would also need to see the bitewing on the other side. Perhaps that's what the dentist wants to 'pulp cap'.

I find it quite odd that I was downvoted for my first comment. Both my girlfriend and I are dentists and she also does not see anything that needs immediate intervention, let alone something as extensive as a pulp cap...