Both cells have same functions. The galvanic cell consist of two different metals connected by salt bridge. It is also known as electrochemical cell. It should not be confused with electrolytic cell. Voltaic cell also consist of two separate compartments.
But very oftenly, you get them from age 17-21. So yeah it depends if you already have your 12 yearold molars, I will edit if you say something! But here is ome more info on wisdom teeth! Wisdom Teeth get their name because they usually arrive about the time of adulthood (17-21 years of age).
Your child has a set of 28 permanent, adult teeth. (Her four wisdom teeth will come in when she's 17 to 21 years old.) Teething timeline: Your child's development. There's a wide range of normal for when teeth come in, but they do usually appear in a predictable order.