What part does heredity play?
Heredity is a complicated combination of factors. Both parents may have perfectly aligned teeth, and the first child’s teeth may erupt uneventfully. Then comes the second child and it is as if hereditary factors are working against each other. The child’s teeth appear normal, but their alignment is going to cause problems in the future. So, assume neither the best nor the worst. Have your orthodontist evaluate your child’s bite and proceed from there.
