E.M.
It's quite possible that he won't have the extra tooth come in as a permanent one. Or it's possible that he does...I believe the only way to know for sure is that you'll have to wait until he gets old enough for the permanent ones to form above the baby ones and then have him xrayed...and I think that doesn't happen until atleast the age of 6 or 7 yrs. As for the overbite--again, you really can't tell how severe it's going to be until he gets older. The school notified me that our oldest was 'detected to have an extreme overbite and deepset lower jaw...orthodontic work is highly recommended to begin immediately'. She was 8. I took her to my own family ortho and was informed that he absoltutely will not even look at a child's mouth for orthodontic work until they reach 14 yrs--they're still growing and their bodies are still changing. Praying all goes well for you both!