Does teeth have to do with any of my family genes?

I don't really get it. Both my mom and dad have straight teeth, and they didn't need braces. They both don't have cavaties/fillings, and there perfectly white. And me, I have crooked teeth, silver fillings, white fillings, porcelin/silver crowns, and my teeth are yellow in the front, and white in the back. I don't really eat chocolate or sweets. Both of my parents have been personal trainers and gym workers before when they were in there late 20s so naturally they never had cavaties before. But i have all the negative things of my teeth. I don't overbite or under bite. When I was little, i would always forget to brush my teeth but.... does this have to do with my parents genes or it comes natural? or is it because of a pacifier ?