What happened to Eddie's gap in his teeth?
When we first meet Eddie in the first vacation he's got a gap between his front teeth
https://www.aveleyman.com/Gallery/2017/Q/14163-13448-0.jpg
Then in this one its gone
https://i.pinimg.com/originals/e0/d8/9a/e0d89ae57db54c62a60efc7a88e7de16.jpg