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).
The majority of people have most of their permanent teeth by age 13, followed by the wisdom teeth, which usually erupt or become impacted between the ages 17-21. They are called wisdom teeth because they typically arrive during the time of life when a person gains maturity, and thus wisdom.