Is that contagious?

Today Julia had four baby teeth pulled. She's been in a little bit of pain, but is doing so well. I think she's more irritated about having to keep gauze in her mouth to absorb the blood. When Tanner finally woke up this morning he saw her and immediately became concerned. I was sitting on the couch cuddling with Julia and he climbed up into my lap and asked what was wrong with her. I told him she had teeth pulled at the dentist and asked if he wanted to see. He said yes, so he leaned over to get a closer look. I think he was startled to see the four small holes in her mouth. However, when he leaned, his hand slipped and ended up landing on Julia's leg. He jumped off my lap and said "I don't want to touch her mom!" I asked him why and he said "because she will make my teeth fall out too!!" Since then Tanner has kept a safe distance...hoping to avoid catching Julia's disease. :)