Why are my son's front teeth not erupting?

Q: My seven-year-old son fell from his bicycle at age of around two years and lost his two front teeth. At that time the dentist had said that teeth are completely broken and nothing is left inside. Now his other teeth have started falling and are coming out, except for these two front teeth. Why are my son's front teeth not erupting?

A:The eruption date for the front two centre teeth is from 7 to 8 years. You are well within the time frame. Since you are worried, it is best to get an x-ray done of this region.