Should i get my 5yr old daughter a filling already?

Yes: You are never too young to need a filling. If the tooth has decay, the longer you wait, the more problems you can have.

If needed, yes!: Some primary teeth will be retained until 10-11 years of age. Some are important in maintaining space so the permanent teeth will have too to grow.

Yes if needed: If she needs a filling (possibly a stainless steal crown if its large) then I would get it done. It will not heal itself.

Yes, see kids DDS: for evaluation and x-rays. A child's primary teeth are as important as the permanent adult teeth. A pedodontist is a dentist who specializes in caring for children's teeth.