Is it normal for your third tooth to the back fall out?

No, it is not typical for your third tooth to the back to fall out. While it is possible for any tooth to fall out due to various reasons such as gum disease, tooth decay, or injury, the third tooth to the back (usually the first molar) is generally a permanent tooth that should remain in place throughout adulthood. If you have noticed your third tooth to the back falling out, it's important to visit a dentist to determine the cause and discuss potential treatments or replacements.