Yes Staci, it's about at four months when they start to loose the puppy teeth. If you see that she's uncomfortable, you can give her some ice cubes to chew.
When Natasha, my first Golden, was loosing her baby teeth I used to give her ice cubes. She would chew them for a while and then put them in her "treasure chest", where she had all her toys. When she came back looking for the cube, she was very confused because it wasn't there any more and what she found instead was a puddle.