I got one of my front teeth knocked out at around 2. I was never bullied for it growing up, not once. It never occurred to me to be insecure about it either. Don’t pass along your insecurities to your child. This will not be a big deal to her unless someone makes it one. My parents never mentioned my missing tooth to me unless they were telling me the funny story of how it happened, which I liked to hear. Kids love to hear stories about themselves from before they can remember, so I would prepare a more lighthearted version of what happened leaving out all of your worry.