If there’s anything everyone pretty much agrees on, it’s that sharks are cool. In addition to being awe-inspiring apex predators in many regions of the oceans, these amazingly well-adapted fish lose and grow new teeth throughout their lives with each new tooth rising from behind the old one and eventually forcing it out of place. Thankfully, adult teeth rising from behind the baby teeth isn’t usually a major issue when it happens in children. Here’s a brief guide to the “shark teeth” phenomenon in children and a few tips for best managing the situation.

Dentists have long regarded fluoride as “nature’s cavity fighter” due to its uncanny ability to strengthen teeth and prevent tooth decay. Fluoridation of public water supplies prevents countless cavities, allowing communities to avoid needless suffering and save large sums of money that would be spent on restorative dental work. Here’s what you should know about fluoride and how it can safely help your child maintain a healthy smile for life.