Do you see your baby's top teeth when she/he smiles?

My baby girl is 13 months. I realized recently she has about 5 teeth coming in across the top. I haven't seen these before today, but they must have been there for weeks. I can't see them at all when she smiles. She does have an upper lip tie. Is that the reason I am not seeing them? Or do they need to come through more before I see them? I'm just curious if the lip tie is now starting to cause a problem.